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AMD Athlon ii X4 645 Vs Phenom ii X4 840

The Athlon ii X4 645 Vs  and the Phenom ii X4 840 are pretty close is CPU performance with the quad core 840 slightly ahead. The 840 is clocked 100 MHz more than the Athlon ii 645.

Table : Athlon ii X4 645 Vs Phenom ii X4 840 Feature Differences

Feature Athlon ii X4 645 Phenom ii X4 840
Core Frequency 3.1 GHz 3.20 GHz
No. Of Cores 4 4
Cache Organization 2 MB L2 Cache 2 MB L2 Cache
Turbo Frequency No Turbo No Turbo
TDP Rating 95 Watts 95 Watts
64 Bit Support Y Y
Lithography 45 nm 45 nm
Integrated Memory Controller DDR2 / DDR3 DDR2/DDR3
Integrated Graphics No Integrated Graphics No Integrated Graphics

 

Table : Athlon ii X4 645 Vs Phenom ii X4 840 Benchmarking Comparison

Benchmarks Athlon ii X4 645 Phenom ii X4 840
PassMark Score
3647 3750
Super Pi 1M (Lower in better)
24.80 seconds 24.1 seconds
PC Mark Vantage v1.0.1
6584 Not available
7 Zip ( Higher is better)
11718 6590

 

Some more details of Athlon ii X4 645

The Athlon ii X4 645 improves upon the famous low cost high performance Athlon ii X4 640 , by 100 MHz. The 640 has been highly praised in media , reviewers. It has been compared extensively with similar performing Intel processors to arrive at a common conclusion that it is a formidable competitor that beats in price for the performance that it offers. The 645 should follow the suit. It fits in the AM2+/AM3 socket based motherboards and works well with the DDR2 as well as DDR3.

Some more details of Phenom ii X4 840

For just a little over $100 ( $102 to be precise), the quad core Phenom ii X 4 840 promises an impressive performance. Clocked at an impressive 3.20 GHz, and launched in Jan 2011, the processor extends the competitive life of the Phenom ii X4 800 series and keeps it competitive against similarly priced Intel processors including the low end Sandy Bridge Core i3 processors.

 

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