After the X-Mas rush AMD was keen to introduce a few new CPUs. The flagship Phenom II X6 is now clocked at 3.3GHz, Turbo goes up to 3.7GHz, and it still has 64kB of L1 cache per dice for data and instructions, 512kB L2 cache per dice and 6MB shared 3rd Level Cache. The TDP stays at 125W and VCore runs at 1.3500V.

The second introduction was the Phenom II X4 840, which striked us oddly. While in the name suggests 3rd level cache, this one has none. It is in fact the successor to the Athlon II X4 645, with a 100MHz higher clock which now stands at 3.2GHz. Why it's called Phenom instead of Athlon II X4 650 is anyone's guess. The Vcore went up from 1.3500V to 1.4000V, still 64kB L1 cache per dice for data and instructions, 512kB L2 cache per dice and an TDP of 95W.

Testbed:
Motherboard:
ASRock 890GX Extreme 3 (provided byASRock)
AMD 890GX/SB850
MSI P55-GD65 (provided by MSI)
Intel P55
ASRock H55M Pro (provided by ASRock)
Intel H55


CPU:
Intel Pentium G6950, Core i3-530 (provided by Mindfactory)
Intel Core i5-750 (provided by Intel)
AMD Athlon II X4 620/645/X6 1090T (provided by AMD)
AMD Phenom II X6 1055T 95W (provided by ASRock)

CPU-Cooler:
Scythe Grand Kama Cross (provided by Scythe-Europe) for AMD and Intel 1156
Thermalright Ultra 120 eXtreme 1366 (provided by Thermalright) for Intel 1366

Memory:
G.Skill Eco 4GB Kit PC3-12800 (provided by G.Skill)
1067MHz CL7-7-7-20 CR1T 1.35V for Athlon II X2, Pentium G6950, i7-975
1333MHz CL7-7-7-20 CR1T 1.35V for Athlon II X4, Phenom II X4/X6, i3-530, i5-750

Graphics Card:
MSI R4850-2D1G-OC (provided byMSI)

Power supply:
PC Power & Cooling Silencer 500W (provided by PC Power & Cooling)

Hard disk:
Samsung F1 1000GB RAID-Edition (provided by Ditech)

Case fans:
SilenX iXtrema Pro 14dB(A) (provided by PC-Cooling.at)
Scythe DFS122512LS

Case:
Cooler Master Stacker 831 Lite (provided by Cooler Master)

OS:
All tests are performed with XP SP3. As 64-bit software is still not very common, we used the 32-bit version.