CPU-Z is a freeware that gathers information on some of the main devices of your system.

CPU

• Name and number.
• Core stepping and process.
• Package.
• Core voltage.
• Internal and external clocks, clock multiplier.
• Supported instructions sets.
• Cache information.

Mainboard

• Vendor, model and revision.
• BIOS model and date.
• Chipset (northbridge and southbridge) and sensor.
• Graphic interface.

Memory

• Frequency and timings.
• Module(s) specification using SPD (Serial Presence Detect) : vendor, serial number, timings table.

System

• Windows and DirectX version.

Special Keys

The F5 key allows to save a screenshot as a bmp file in the application directory. These are named cpu.bmp, cache.bmp, mainboard.bmp and memory.bmp.
The F6 key copies the current page in the clipboard.
The F7 key saves the validation cvf file in the current directory.
The F9key switches between CPU clock computation methods

• Intel Core i5 2550K, 2450P and 2380P with no GPU.
• Intel Core i3/i5/i7 22 nm “Ivy Bridge” (37xx, 35xx, 34xx, 33xx, 32xx).
• Intel Xeon E3 (SandyBridge-WS).
• Intel Z77 platform.
• AMD FX-8140, FX-4150 and Mobile Llano (socket FS1).
• AMD “Trinity” APU Preliminary support.
• Windows 32/64-bit report.

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1.77 – August 2016
– New benchmark “submit and compare” feature.
– New clocks dialog reporting all system’s clock speeds in real-time.
– Preliminary support for Intel Kaby Lake.
– AMD Bristol Ridge processors.

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1.76 – April 2016
– Intel Broadwell-E/EP processors.
– AVX512 instruction set report.
– Fixed several bugs (missing SPD on some systems).

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1.75 – January 2016
– Intel Skylake Pentium and Celeron support.
– Intel Broadwell-E preliminary support.
– AMD A10-7890K APU.

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1.74 – October 2015
– Improved CPU benchmark.
– AMD Carrizo APUs.
– eDRAM detection on Slylake CPUs.

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1.73 – August 2015
– New validation.
– eXtreme Overclock Mode with light CPU load.
– New tab : CPU Benchmark.
– Added L4 cache frequency (cache tab).
– Added Windows 10 editions.

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1.72.1 – May 2015
– Intel Skylake and Broadwell support (1.72.1)
– Preliminary support for Intel Skylake.
– Fixed support for Windows 10 build 9926.

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1.71.1 – November 2014
– Intel Core M processors (1.71.1)
– New CPU-Z logo (1.71.1)
– AMD Athlon X2 450, Athlon X4 840 and Athlon X4 860K (Kaveri).
– AMD FX-8370, FX-8370E, FX-8320E (Vishera).
– Improved support for Intel X99 chipset.
– Support for Microsoft Windows 10.

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1.70 – July 2014
– Intel i7-5960X, i7-5930K, i7-5820K, i7-4790K, i5-4690K, Pentium G3258.
– TSX instructions set support (including RTM and HLE subparts).

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1.69.2 – April 2014
– Intel Haswell-E processors (1.69.2)
– Preliminary support for DDR4 memory (1.69.2)
– AMD FCH detection improved (1.69.2)
– AMD A6-6420K, A4-6320, A4-4020.
– AMD Athlon 5350 & 5150, Sempron 3850 & 2650 Kabini.
– Intel Core i7-4770R and Core i5-4570R Crystal Well.
– Added graphic card vendor.

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1.68 – January 2014
– AMD Kaveri APUs (A10-7850K, A10-7800, A10-7700K, A8-7600, A6-7400K, A4-7300).
– Intel i7-4790, i5-4690, i5-4590, i5-4460 (Haswell refresh).
– Intel Celeron Haswell (G1830, G1820).
– Intel serie 9 chipset (Z97).
– Nuvoton NCT6106 and SMSC SCH5636 SIOs (Fujitsu mainboards).

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1.67.1 – November 2013
– Fix several validations issues (1.67.1).
– Improved support of Intel Silvermont (Bay Trail).
– New validation.

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1.66 – August 2013
– Intel Core i7-4xxx MQ/MX processors (1.66.1)
– Fixed BCLK jump bug and validation issue (1.66.1)
– Intel Xeon E5-2600 V2, Core i3-4xxx, Core i7-3910K processors.
– Intel Atom Bay Trail-T preliminary support.
– Intel Ivy Bridge-E/EP/EX support improved.
– AMD Opteron 3200 and 3300 series.
– ITE IT8603 and IT8623 SIOs (Asus FM2+ mainboards).
– Microsoft Windows 8.1 (Windows Blue).
– New version checker.

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1.65 – June 2013
– AMD Opteron X1150 and X2150.
– AMD FX-9590 and FX-9370.
– Intel 4xxxHQ “Crystalwell” CPUs.
– Intel Pentium “Haswell” G3430, G3420, G3220.

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1.64 – April 2013
– Intel Atom Cloverview.
– Intel Ivy Bridge-E/EP/EX.
– AMD Richland APUs.

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1.63 – February 2013
– Intel Pentium & Celeron “Ivy Bridge” CPUs.
– AMD Athlon X4 750K.
– FMA3 & 4 instructions sets.
– Support for systems with more than 64 CPUs.
– Report TDP in validation pages.

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1.62 – October 2012
– AMD “Vishera” processors.
– Intel Haswell & Ivy Bridge E/EP preliminary support.
– Reduce CPU utilization.
– Improved validation process.

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1.61 – July 2012
– Fix wrong clock speed report (1.61.3).
– Intel CedarTrail platform.
– VIA VX11 chipset.
– Intel Xeon E5 processors.
– Fix wrong CPU clock speed under Win8.

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1.60 – March 2012
– Intel Core i5 2550K, 2450P and 2380P with no GPU.
– Intel Core i3/i5/i7 “Ivy Bridge” (37xx, 35xx, 34xx, 33xx, 32xx).
– Intel Xeon E3 (SandyBridge-WS).
– Intel Z77 platform.
– AMD FX-8140, FX-4150.
– AMD “Trinity” APU Preliminary support.
– Windows 32/64-bit information.

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1.59 – November 2011
– AMD Opteron Interlagos and Valencia (Bulldozer).
– AMD SR56x0 I/O bridge and SP5100 southbridge (Maranello).
– Intel Core i7-3960X, 3930K and 3820 (SandyBridge-E).
– Intel X79 chipset (Jaketown).
– VIA Nano 1000/2000/3000, Eden X2, Nano X2/X3, QuadCore.
– Support for Windows 8.

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1.58 – June 2011
– AMD FX “Bulldozer” processors family (K15).
– AMD Llano processors family (K12).
– Intel Sandy Bridge-EP processors preliminary support.

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1.57 – February 2011
– Intel Xeon “Westmere-EX” support.
– GPU frequency report on Intel Sandy Bridge processor.
– AMD Zacate/Ontario processors support.
– Report TDP on main page when available.
– Cores clocks on floating menu.
– P67/H67 stepping report.

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1.56 – October 2010
– Intel Core i3/i5/i7 “2000” serie processors (Sandy Bridge) with new logos.
– Intel Core i7 970 “Gulftown”.
– Intel P67 chipset.
– AMD Phenom II, Athlon II and Sempron II “Caspian” processors.

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1.55 – July 2010
– VIA VX900/VX900M and VN1000/VN1000M chipsets.
– Intel Core i5-760, Core i7-875K and Core i5-655K processors.
– Intel Core i7-940XM, 840QM, 740QM mobile processors.
– Intel Core i5-450M, 540UM, 430UM, Core i3-370M mobile processors.
– Intel Pentium P6000 processor.
– New parameter in cpuz.ini : UseDisplayAPI

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1.54 – March 2010
– Intel Core i7-880, Core i5-680, Core i3-550 processors.
– Intel Xeon 5600 line (32nm) processors.
– AMD Phenom II X6, Sempron II, Turion II, Turion II Ultra and Athlon II Mobile “Caspian” processors.
– NVIDIA GeForce 320M chipset.
– AMD 870/880G/890GX + SB800/SB850 chipset.
– Introduction of validation rooms.

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1.53 – December 2009
– Fix validation issue with AMD Phenom processors (1.53.1).
– Preliminary support for Intel Pinetrail platform (1.53.1).
– Intel Core i7 930 & 950, Core i7 980X “Gulftown”, Xeon W3565.
– Intel Mobile Core i7/i5/i3 “Arrendale” (LV and ULV).
– Intel “Clarkdale” platform improved support.
– AMD Phenom FX-5000, Athlon II X2/X3/X4, Athlon L110.
– AMD AM3 socket detection improved.
– VIA VX800 and VX855 chipsets support.
– ATI Radeon 2100 and Radeon X1250 support.
– DirectX 11 detection fix.
– Hardware virtualization support now reported as instructions set.
– New HTML report with less information.

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1.52 – July 2009
– Fix Core i7 clock bug (1.52.2)
– New design with “Graphics” tab.
– NVIDIA nForce 980a chipset support.
– Intel Core i5 and Core i3 processors.
– Intel Atom Z530, Pentium DC E6300 (2.8GHz) and Core 2 Solo processors.
– Intel P55 and US15W chipsets preliminary support.
– AMD Phenom TWKR support.
– AMD Phenom X2 “Callisto” and Athlon X2 “Regor” processors.
– AMD Opteron 6-core “Istanbul” processor.
– Improved support for Windows 7.
– New Intel logos.

MD5 checksum : please refer to http://www.cpuid.com/cpuz.php#history

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1.51 – April 2009
– New version with installer.
– NVIDIA ION platform.
– Intel “Clarkdale” processor preliminary support.

MD5 checksum : please refer to http://www.cpuid.com/cpuz.php#history

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1.50 – February 2009
– Improved support for AMD Phenom II processor.
– Support for NVIDIA 740i chipset.
– Several bug fixes.

MD5 cpuz.exe (1.50) : E1C827C54F527404EDDA6D65DA0280D8

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1.49 – December 2008
– AMD Phenom II processor.
– New Intel Core 2 models.
– Improved loading time.
– New online validation process.

MD5 cpuz.exe (1.49) : B836E86B40D7AFAF99D9C512E8CC9FEF

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1.48 – October 2008
– Improved support for Intel Core i7 (Bloomfield & Gainestown).
– Intel Atom dual-core version support.
– AMD Athlon “Kuma” processor support.
– Alternate clock computation method based on “duty cycles” for Intel Core 2 processors (see ShowDutyCycles in cpuz.ini)

MD5 cpuz.exe (1.48) : DB78FBF1F99B7709240B495E59758CCE

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1.47 – August 2008
– Intel Core i7 processor.
– Intel Core 2 Duo S Mobile processors.
– NVIDIA MCP79/7A chipset.
– AMD 790GX / SB750 chipset.

MD5 cpuz.exe (1.47) : A7484EFA3C32BC968C248CB1237FF493

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1.46 – June 2008
– AMD Puma platform (Turion & Turion Ultra “Griffin”);
– AMD Black Edition processors.
– Intel Xeon EX “Dunnington”.

MD5 cpuz.exe (1.46) : C47432C41EC26156128F7B8E09E884CF

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1.45 – May 2008
– Intel Atom Z500/Z510/Z520/Z530/Z540 processors.
– Intel Core 2 Duo E7x00 processor.
– AMD 45 nm Phenom (Dened & Shanghai) processors.
– Intel P45 chipset.

MD5 cpuz.exe (1.45) : DD4E540C04297CF93DC721166C13446E

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1.44.2 – Mars 2008
– NVIDIA 650i, 680i, 750a/780a, 750i, 780i, 790i chipsets (1.44.2)
– Intel G35 chipset (1.44.2)
– Updated support for VIA chipsets (1.44.2)
– Support for the new validator (1.44.1)
– Preliminary support for VIA Isaiah processor.
– Support for all VIA Model D processors: VIA C7-M, VIA C7-D, VIA Eden, VIA Eden.
– Memory timings on Intel 5400A/B MCH (Skulltrail).
– Fix AMD Phenom detection issue on Windows Vista 64.

MD5 (1.44.2) : 81FB48A6EC7355E8D0DD71ADC2157CF6

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1.43 – January 2008
– Intel Skulltrail platform support (Core 2 Extreme QX9775 + 5400B MCH).
– Intel X48 chipset detection.
– AMD Athlon 64-LE 1600 and 1620 support.
– Fix detection issues on unlocked Phenom (ES/BE).

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1.42 – November 2007
– Intel Wolfdale/Yorkfield/Penryn CPUs support.
– AMD Phenom and Opteron Barcelona support improved.
– Current core selection menu (right click on the CPU page).
– Loading progress.

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1.41 – September 2007
– New CPU voltage monitoring.
– Intel Xeon Tigerton support.
– Intel IA64 CPUs support (Itanium / Itanium2)(special thanks to Rami Radi and Ray Hinchliffe).
– AMD K10 Phenom preliminary support.
– NVIDIA MCP73 support.
– Intel XMP profiles support.
– Memory modules nominal voltage.

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1.40.5 – July 2007
– NVIDIA nForce 560 chipset support.
– Intel Dynamic FSB technology support.
– Athlon 64 X2 BE & Sempron LE (TDP 45W).
– SiS671/FX/DX/MX northbridge support.
– SiS968 southbridge support.

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1.40 – May 2007
– VIA P4M800CE chipset support.
– Preliminary support for Intel Penryn CPUs family (45 nm).
– Intel Core 2 Duo E6x20, Pentium E2140/2160 processors recognition.
– Intel P35, G33, G31, Q35, Q33, X38 chipsets support.
– Intel GL960/GM965/PM965 chipsets support.
– AMD Athlon 64 “Lima” processor support.
– AMD Geode LX processor support.
– NVIDIA nForce 520 chipset support.
– New parameter “-console” to generate output in a command prompt (Windows XP only).
– New icon.

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1.39 – February 2007
– Windows Vista 64 support.
– VIA CX700/VX700 chipset.
– Added Merom XE (X7900/X7800)
– Added “PCI” and “MaxPCIBus” in the ini file to configure PCI scanning.
– Added “-core” parameter to display the clock speed of the specified core.
– Lot of bug fixes.

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1.38 – November 2006
– VIA P4M890 and P4M900 chipsets.
– NVIDIA 650i and 680i chipset.
– AMD Athlon 64 FX-7x processor.
– Core 2 Duo E6850, E6750, E6650 processors.
– socket 775 Xeon processor.
– New parameters “-txt” and “-html” (see above).
– Lot of bug fixes.

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1.37 – October 2006
– Intel Core 2 Quad, Celeron 360, Mobile Core 2 Duo T5200 support.
– Changed SSE4 to SSSE3 (Supplemental SSE3).
– Added VIA VT8237A southbridge.
– New HTML report.
– Several bug fixes.

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1.36 – August 2006
– New processor information display.
– Intel 5000X/P/Z/V SPD support.
– Intel Pentium D 925 & 945.

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1.35 – June 2006
– ATI RS350, RS400, RS480/RX480, RS482, RD580/RX580, RS600/RD600, RS690, RS700 chipsets support.
– ATI SB600 southbridge support.
– Intel P965 chipset support.
– Engineering samples Core based CPUs report.
– Windows Vista product line report.

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1.34.1 – May 2006
– AMD socket AM2/S1/F (rev F.) CPUs support.
– Enhanced Performance Profile (EPP) memory information report.
– Added Trc (bank cycle time) in DDR2 SPD report.
– Added Trc (bank cycle time) on i925, i945, i955, i975 chipsets.
– FB-DIMM DDR2 SPD information report.
– Core 2 Duo names and logos added.
– Turion 64 X2 logo added.
– Several bug fixed.

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1.33.1 – April 2006
– Intel i965 chipset support added.
– Fix SPD detection problem on SiS 964/965/966 southbridges.
– ODC (Odd Divisor Correct) for Athlon64 rev E.

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1.33 – April 2006
– Memory Command Rate timing added.
– Improved support for Intel Conroe/Merom CPUs.
– Celeron M 420/430 Yonah.
– Xeon Dual core Dempsey.
– VIA C7-M CPU detection added.
– VIA PT880, PT880 Pro, K8T900 chipsets support.
– nVidia nForce 550/560/570 (MCP55) chipset support.
– VIA VT8251 southbridge support.
– Fixed HyperTransport information misreports (in dump file).
– Added K6-2 and K6-III logos.

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1.32.1 – March 2006
– New Intel logos.
– Added Pentium D 925, Pentium EE 965.
– Several bugs fixed.

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1.32 – February 2006
– Athlon FX-60 detection added.
– Athlon64 new memory dividers.
– Celeron 35x Cedar Mill, Pentium D 805.
– Core Solo & Core Duo detection improved.
– VIA C7 CPU detection added.
– Intel i975X, i945GT chipsets support.
– ATI RD580 chipset support.
– ULi smbus support improved.
– Fix smbus conflict with ClockGen.

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1.31 – November 2005
– Improved support for ATI RS480/482 chipsets.
– GeForce 6100/6150 (nForce 410/430) chipsets support.
– Intel E7520 chipset support.
– New CPUs support : AMD Opteron socket 939, Intel Pentium 4 Cedar Mill and Presler,
Intel Xeon Paxville, Intel Pentium M Yonah SC & DC.
– Several bug fixed.

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1.30 – August 2005
– Latest Sempron and Turion support improved.
– Intel Xeon Potomac, Pentium M 780 support.
– Improved Windows version report.
– Support for SMBus on latest SiS bridges (964, 965, 966) and ULi bridges.
– Increased clocks refresh rate.
– Several bug fixed.

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1.29 – June 2005
– New PCI devices report.
– Switch for VCore report in .ini file.
– VCore report on some uGuru mainboards.
– Improved clocks computation.
– Improved support for latest AMD CPUs, Celeron D 3×1 (EM64T).
– Improved support for SiS 649, 650 and 656 chipsets, Intel 915PM chipset.
– Improved stability when several instances of CPU-Z are running in the same time.
– Restored html report in ghost mode (see “Parameters” chapter above).

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1.28.6 – March 2005
– Support for Athlon 64 X2 CPUs
– Support for i955X chipset
– Bunch of bugs

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1.28 – March 2005
– Support for SiS chipsets improved : 648FX, 649, 655FX, 655TX, 656
– Support for nVidia nForce4 SLI Intel Edition
– Support for Intel Pentium D, Pentium XE, AMD Turion, Opteron 252
– New F7 key to simplifiy the creation of the validation file

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1.27 – February 2005
– Support for Intel Pentium 4 6xx CPUs.
– New validation system.
– Hundred of bug fixes.

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1.26 – December 2004
– VCore display on Pentium M CPUs.
– New CPU clock computation.
– Improved support of Transmeta CPUs.
– Several bugs fixed.

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1.25 – November 2004
– nVidia nForce4 chipset support
– Intel Pentium 4J support
– New button to refresh memory timings
– Several bugs fixed

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1.24 – September 2004
– AMD Sempron support
– New memory SPD page
– PCI-Express graphic interface support
– Configuration file
– External cache latency tool
– Restored html report
– Fix several bugs

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1.23 – June 2004
– Intel i915P/G, i925X chipsets support
– Intel LGA775 CPUs support
– Intel’s CPU number display
– New AMD Athlon 64 steppings
– New report in one file

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1.22 – April 2004
– New CPUs : Xeon Nocona, Celeron Prescott
– DDR2 memory support
– Clock mode when iconized

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1.21 –  January 2004
– one file package
– Windows 64 support
– new chipsets support
– new CPU support : Celeron M, Pentium 4 “Prescott”

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1.20a –  October 2003
– memory frequency and ratio on nForce2
– KT600 support
– W83627THF VRM mode
– SPD read improvement
– Fix some memory leaks (DMI)
– Fix memory size report
– Fix AGP side band status

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