AMD Athlon II X4 645 review

Is AMD's £95 quad-core chip a bargain buy or cheap tat?

TODO alt text

Our Verdict

AMD gives its budget quad slightly higher clocks. Good for multi-threading, less convincing in games.

Product features

  • Processor Core : Quad-core (4 Core)

View full specification


  • Four cores and high clocks
  • Very affordable


  • Missing cache hurts gaming performance
  • Limited overclocking headroom

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 around £65. Moving up a gear, seriously high performance quad-core processors from both AMD and Intel sell for less than £150.

AMD's new flagship quad, for example, the 3.5GHz Phenom II X4 970 Black Edition is yours for a whisker over £140. Intel's Core i5 760 is similar money.

The challenge for the new Athlon II X4 645, then, is to get close enough to those more upscale chips in terms of performance that the price differential looks like a worthwhile saving and not a false economy. Of course, the 645 also needs to put clean air between itself and cheaper quads, such as the 620.

Tech Specs

Product TypeProcessor
Processor CoreQuad-core (4 Core)
Thermal Design Power95 W
Processor ManufacturerAMD
Product FamilyAthlon II X4
Clock Speed3.10 GHz
Processor SocketSocket AM3 PGA-938
Brand NameAMD
Green CompliantYes
Green Compliance Certificate/AuthorityRoHS
64-bit ProcessingYes
L2 Cache2 MB
ManufacturerAdvanced Micro Devices, Inc
Product Model645
Product NameAthlon II X4 Quad-core 645 3.1GHz Desktop Processor
Product LineAthlon II X4
Manufacturer Part NumberADX645WFGMBOX
Manufacturer Website Address
Marketing Information

Do more in less time with amazing multi-core performance at a great price

Do more of the things you want to in less time and enhance your digital life with the multi-core performance and energy efficiency of AMD Athlon II processor-based desktop systems. Combined with superior ATI Radeon HD graphics technology, systems based on the AMD Athlon II processor deliver a vivid visual experience, superior multi-tasking, and exceptional digital media performance with next-generation energy efficiency.

Process Technology45 nm
Package Contents
  • Athlon II X3 Tri-core 450 3.2GHz Desktop Processor
  • AMD-qualified Heatsink/Fan with Thermal Interface
  • Installation Manual
  • AMD Processor Case Sticker
  • Certificate of Authenticity
Limited Warranty3 Year