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AMD Phenom II X4 810 AM3/AM2+ Processor E-mail
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Written by Olin Coles   
Sunday, 08 February 2009
Table of Contents: Page Index
AMD Phenom II X4 810 AM3/AM2+ Processor
Features and Specifications
Closer Look: Phenom II X4 810
Testing and Results
Devil May Cry 4 Gaming
EVEREST Benchmark Tests
Far Cry 2 Gaming
Passmark PerformanceTest
PCMark05 Benchmark Tests
SPECperfview CATIA Tests
AMD Dragon Final Thoughts
Phenom II X4 810 Conclusion

Closer Look: Phenom II X4 810

The Phenom II X4 810 AM3/AM2+ processor HDX810WFGIBOX from AMD offer a large 1.47 x 1.147" (37.31 x 37.31mm) integrated heat-spreader surface, which helps dissipate the maximum 95W TDP the X4 810 is capable of producing. Compared to Intels Core 2 Duo and Quad processors which measure 28.5 x 28.5mm, the Phenom II offers over 71% more contact surface area. If you compare the latest Intel Core i7 processors which measure 32 x 35mm, then the Phenom II series only offers 24% more contact surface area. For overclockers, this will mean a much larger area to cool, but also much more manageable temperatures.


Although the Phenom II X4 810 is an AM3 938-pin processor by design, it comes packaged to be backward-compatible with the AM2+ 940-pin organic micro pin grid array (micro-PGA) socket. The AMD Phenom II HDX810WFGIBOX is specified as having a 0.875-1.425V nominal voltage, and uses the 45nm (.045-micron) DSL Silicon on Insulator (SOI) process technology construction.


AMD Phenom

Intel Core 2 Quad Q8xxx/Q9xxx

AMD Phenom II (X4 810)

Intel Core i7

Manufacturing Process





L1 Cache

64K + 64K per core

32KB + 32KB per core

64K + 64K per core

32KB + 32KB per core

L2 Cache

512KB per core

2x3MB, 2x4MB or 2x6MB

512KB per core

256KB per core

L3 Cache





Transistor Count


456M (6MB/8MB L2) or 820M (12MB L2)



Die Size

285 mm2

164 mm2 (6MB/8MB L2) or 214 mm2 (12MB L2)

258 mm2

263 mm2

The Phenom II X4 810 offers a total cache of 6.5MB, split into three levels. The L1 cache delivers 64K of L1 instruction and 64K of L1 data cache per core (512KB total L1 per processor), while the L2 cache offers 512KB of data cache per core (2MB total L2 per processor). The final level 3 (L3) cache shares 4MB among the four processor cores.


Based on the updated AM3 architecture, the backwards compatibility with AM2+ socket motherboards, increased cache size, and a larger IHS footprint, the Phenom II may be exactly what hardware enthusiasts and overclockers need during an economic recession. In the following sections, we will compare the Phenom II series against the Intel Core i7-920 Processor BX80601920. While benchmarks help separate the products, real-world experience and gaming frame rates paired with affordable product pricing will ultimately decide which CPU is really 'better'.


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