first take Available as the 3GHz Phenom II X4 940 and the 2.8GHz Phenom II X4 920, these new quad-core CPUs are AMD's first 45nm desktop processors, and they finally bring AMD in line with Intel's 45nm manufacturing process, used in its Core 2 Duo, Core 2 Quad and Core i7 chips.
Phenom II X4 940 isn't designed to overtake Intel's Core i7-965 Extreme Edition as the fastest desktop chip around, but it also doesn't have an AU$2,000 price tag. At US$275 (at price per chip by the thousand, anyway), the 3GHz Phenom II X4 940 instead competes with Intel's mid-range CPUs.
Leaked benchmarks (big grain of salt here, folks), show the X4 940 holding up well against Intel's 2.93GHz Core i7 940 part, which currently retails for over AU$1,000. You can expect various other scores and full reviews to hit the web today. We'll have our own once we get a break from CES, so be sure to check around for the full picture.
Below you'll find the overall speeds and feeds for Phenom II X4:
- L1 Cache: 64K instruction, 64K data cache per core (512KB total per processor)
- L2 Cache: 512KB data cache per core (2MB total L2 per processor)
- L3 Cache: 6MB (shared)
- Memory controller type: integrated 128-bit wide memory controller
- Types of memory supported: up to DDR2-1066MHz
- Packaging: Socket AM2+ 940-pin
- Approximate transistor count: ~758 million (45nm)
- Approximate die size: 258mm² (45nm)
Of those, the 6MB of L3 cache represents one of the biggest gains over the original Phenom design, which had just 2MB shared among the various cores. And if you find the DDR2 memory and AM2+ memory support alarming given Intel's support for faster DDR3 on its Core i7 X58 motherboards, AMD informs us that DD3 compatibility will come shortly into 2009 when it introduces its AM3 chipsets, although that will also require a new batch of AM3-compatible Phenom II's.
That might give you pause about adopting Phenom II before AM3 hits. Of particular interest to overclockers for the moment, though, the Phenom II X4 940 is also one of AMD's "Black Edition" chips, which ships with an unlocked clock multiplier.
