Very fast clocked budget Quad Core.
Lots of computing power in multithreaded applications.
Compatibility with older chipsets.
Low operating temperatures.
Power consumption improvements over C2 revision Athlon II X4.
Efficient 45nm process.
Lack of L3 cache is noticeable in some cases.
Oscillating performance, depending on application.
By DigitalVersus on January 03, 2011
A quad-core CPU that offers performance levels at times lower than dual core models. It is nevertheless a good performer in applications that are adapted to the use of several...80
By iXBT Labs on November 23, 2010
The overall score quite precisely describes processor standings which marketing specialists could have in mind when setting prices. So, formally, we can say that every processor is in its place and is worth buyers' attention. Although, considering...-
By TechRadar on November 17, 2010
A quad-core chip on the cheap is a compelling concept. The new 3.1GHz AMD Athlon II X4 645 is certainly a quad-core chip, but is it cheap enough at £95?For sure, there are more affordable Athlon II X4s on offer. The 2.6GHz 620 model can be had for...80
By Fudzilla on November 15, 2010
We are not very fond of the 100/133MHz increases of any manufacture on any CPU. It's quite senseless to increase the frequency so little in the 3GHz age, because it does not make much difference, besides the money the companies will cash it for. AMD...-
By Bit-tech.net on October 06, 2010
The X4 645 struggles to carve out a place for itself in the market. It's only averagely fast in single-threaded applications as, despite its high clock speed, it’s still based on an old architecture. For a cheap gaming rig or image editing PC...70
By TechwareLabs on September 22, 2010
AMD’s mantra has always been great performance at a great price, and the X4 645 certainly delivers. It delivers performance numbers mostly on par with the Intel i5 750, a CPU that retails for $200. If you’re looking to build a powerhouse...-
By PCStats on September 22, 2010
Like it's predecessors, AMD's 3.1GHz Athlon II X4 645 is an ideal computer processor for those who need good multi-threaded application performance, but have to live within the reality of a tight budget. This chip costs $122USD, making it one of...80
By techPowerUp! on September 20, 2010
Looking back at the performance graphs, Athlon II X4 645 performed as expected in every way, both good and bad, and even throwing a few pleasant surprises along the way. Strong points for this processor are by far its reasonable price, and fast four...89
By Hi Tech Legion on September 20, 2010
When looking to build a new computer, one thing to always keep in mind is what it is going to be used for. Not every new build requires cutting edge power and, for a solid daily use computer, you can't go wrong with a Quad Core. At a price of $122,...-
By Benchmark Reviews on September 20, 2010
As was evidenced by our test results, the Athlon-II X4-645 offers great performance for its price range. It competing very closely with processors costing a lot more. The most important thing, however, is just the simple fact that it can get the job...92