AMD Phenom II X4 840 3.20 GHz 14

AMD Phenom II X4 840 3.20 GHz Review

Everest Ultimate »

Test Systems

Test System
Motherboard:AMD: ASUS M4A79T Deluxe
ASUS Crosshair IV Formula
Intel LGA1366: ASUS P6T
Intel LGA1156: ASUS P7P55D PRO
Intel LGA775: ASRock P45X3 Deluxe
Cooler:Scythe Katana III
Memory:2 x 2048 MB G.Skill Perfect Storm PC-16000 DDR3
@ 1333 MHz 7-7-7
@ 1066 MHz 7-7-7 for C2D E7000
Graphic cardVTX ATI Radeon HD 5850
Harddisk:Samsung HD161HJ 160 GB
Power Supply:Enermax Liberty 620 W
Software:Windows 7 Ultimate 64-bit
Drivers:Catalyst 9.12 Hotfix

Below you can see the entire list of programs used to test our processors. Most of the tests make good use of multithreading, but just like real-life situations, there are some tests that prefer higher clock frequencies over number of cores or size of L2/L3 cache buffer. Since Windows 7 64-bit is used from now on as base for processor benchmarks, some of benchmarks are used in 64-bit versions as well.

Benchmark Suite

  • Everest Ultimate v5.30 - Read/Write/Copy/Latency
  • PC Mark Vantage v1.0.1 64-bit
  • 3D Mark Vantage v1.0.1 Performance preset (CPU and Total score)
  • wPrime v2.0 1024M
  • SuperPI 1M
  • I'm Too Audio Encoder v2.1.78 - WMA encode with LAME MP3 128 kbs
  • x264 benchmark HD V3.0
  • Handbrake v0.9.4 DVD rip to .mkv (Standard High preset)
  • Xilisoft Video Converter Ultimate v5.1.26 - .mov 1080p encode with H.264/MPEG4 AVC .mp4 preset
  • DivX Converter 7.2 - AVI encode with Home Theater preset
  • Photoshop CS4 Retouch Artists Speed Test
  • Cinebench R10 64-bit
  • Blender 2.49
  • POV Ray 3.7b 64-bit
  • 7zip v4.65 64-bit - 32 MB mutithreading
  • WinRAR Benchmark v3.91 64-bit
  • WinRAR real life compression ~ 1 GB folder
  • Crysis Warhead v1.2 64-bit
  • Modern Warfare 2
  • Warhammer II v1.5
  • DiRT 2
  • GTR Race ON!
  • Resident Evil 5 benchmark
  • Prime95 for maximum heat and power consumption


In the table below you can review detailed specifications of AMD Phenom II X6 1055T and other models that will show up later in the performance graphs.

Intel ProcessorsIntel
Core 2 Duo
Core 2 Duo
Core 2 Duo
Core 2 Quad
Core 2 Quad
Core i3
Core i3
Core i5
Number of coresDualDualDualQuadQuadDualDualDual
Core codenameWolfdale 4MWolfdale 4MWolfdaleYorkfield 4MYorkfield 4MClarkdaleClarkdale Clarkdale
SocketLGA 775LGA 775LGA 775LGA 775LGA 775LGA 1156LGA 1156LGA 1156
Core speed2930 MHz3060 MHz3000 MHz2500 MHz2660 MHz2930 MHz3060 MHz3330 MHz
L2 Cache3 MB3 MB6 MB4 MB4 MB256 KB/core256 KB/core256 KB/core
L3 Cache-----4 MB4 MB4 MB
Process Node45 nm45 nm45 nm45 nm45 nm32/45 nm32/45 nm32/45 nm
Core die size82 mm²82 mm²107 mm²164 mm²164 mm²81+114 mm²81+114 mm²81+114 mm²
TDP65 W65 W65 W95 W95 W73 W73 W87 W
Price$ 124$ 150$ 170$ 170$ 175$ 115$ 125$ 210

AMD ProcessorsAMD
Phenom II
X2 550 BE
Athlon II
X4 630
Athlon II
X4 645
Phenom II
X4 840
Phenom II
X3 720 BE
Phenom II
X4 925
Phenom II
X4 945
Number of coresDualQuadQuadQuadTripleQuadQuad
Core codenameCallistoPropusPropusPropusHekaDenebDeneb
Core speed3100 MHz2800 MHz3100MHz3200MHz2800 MHz2800 MHz3000 MHz
L2 Cache512 KB/core512 KB/core512 KB/core512 KB/core512 KB/core512 KB/core512 KB/core
L3 Cache6 MB---6 MB6 MB6 MB
Process Node45 nm45 nm45 nm45 nm45 nm45 nm45 nm
Core die size258 mm²168 mm²168 mm²168 mm²258 mm²258 mm²258 mm²
TDP80 W95 W95 W95 W95 W95 W125 W
Price--$ 119$ 102 (MSRP)--$ 139
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