Quad core AMD Athlon ii X4 640 compared to Phenom ii X4 840

The quad core processors will pump out better performance in the conditions where more processes ( 4 is an optimum figure)are running in parallel. If you are running only three threads you are under utilizing the processor. In such case a higher clocked dual or triple core processor can beat you.

The Athlon iii 640 and the Phenom ii 840 are quad core processors that have substantially great performance and low cost as well. They compete with the Entry level Intel's desktop processors, and rely upon low price as their main strength.

Table : Athlon ii X4 640 Compared to Phenom ii X4 840 Feature Differences

Feature	Athlon ii X4 640	Phenom ii X4 840
Core Frequency	3.0 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 640 Vs Phenom ii X4 840 Benchmarking Comparison

Benchmarks	Athlon ii X4 640	Phenom ii X4 840
PassMark Score	3474	3750
Super Pi 2M (Lower in better)	Not available	Not available
3D Mark 06 CPU	Not available	Not available
Windows 7 Experience Score	Not available	Not available

Some more details of Athlon ii X4 640

The Athlon ii X4 640 has been highly praised in the circle of processor analysts a and 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. 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.