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AMD Athlon II X4 645 review

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

AMD Athlon II X4 645
Is it worth picking up a cheap quad-core processor?

TechRadar Verdict

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

Pros

  • +

    Four cores and high clocks

  • +

    Very affordable

Cons

  • -

    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.

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Mushkin Delta5000n114.99 (opens in new tab)229.99 (opens in new tab)539.99 (opens in new tab)
Corsair MP600 Core4950y124.99 (opens in new tab)239.99 (opens in new tab)680.59 (opens in new tab)
Inland Performance5000n129.99 (opens in new tab)
Inland Performance5000y129.99 (opens in new tab)
Reletech5000n129.99 (opens in new tab)249.99 (opens in new tab)
Silicon Power5000n129.99 (opens in new tab)239.99 (opens in new tab)
Addlink A924700y139.99 (opens in new tab)267.99 (opens in new tab)539.99 (opens in new tab)
Corsair MP6004950y89.99 (opens in new tab)139.99 (opens in new tab)279.99 (opens in new tab)
PNY XLR85600n79.99 (opens in new tab)142.99 (opens in new tab)259.85 (opens in new tab)599 (opens in new tab)
Crucial P5 Plus6600n90.09 (opens in new tab)149 (opens in new tab)307 (opens in new tab)
Mushkin Gamma7100n149.99 (opens in new tab)319.99 (opens in new tab)799.99 (opens in new tab)
Adata XPG GAMMIX S707400y149.99 (opens in new tab)329.99 (opens in new tab)
Adata XPG GAMMIX S70 Blade
7400y159.99 (opens in new tab)329.99 (opens in new tab)
Corsair MP600 Pro7000y169.99 (opens in new tab)339.99 (opens in new tab)1057.99 (opens in new tab)
Addlink A905000y179.99 (opens in new tab)344.99 (opens in new tab)
Sabrent Rocket 4 Plus7100n89.99 (opens in new tab)179.99 (opens in new tab)359.99 (opens in new tab)869.99 (opens in new tab)
Samsung 980 Pro7000n109.99 (opens in new tab)184.99 (opens in new tab)357.29 (opens in new tab)
Teamgroup CARDEA A4407000y188.99 (opens in new tab)386.99 (opens in new tab)
Sabrent Rocket 4 Plus7100y189.98 (opens in new tab)369.98 (opens in new tab)899.99 (opens in new tab)
Gigabyte Aorus7000y189.99 (opens in new tab)426.84 (opens in new tab)
WD WD_Black SN8507000n99.99 (opens in new tab)189.99 (opens in new tab)354.99 (opens in new tab)
Corsair MP600 XT7100y189.99 (opens in new tab)412.77 (opens in new tab)1024.99 (opens in new tab)
Teamgroup CARDEA A440 Pro7200y189.99 (opens in new tab)369.99 (opens in new tab)
Addlink A957300y189.99 (opens in new tab)379.99 (opens in new tab)829.99 (opens in new tab)
Seagate Firecuda 5307300n129.99 (opens in new tab)209.99 (opens in new tab)419.99 (opens in new tab)1175.05 (opens in new tab)
WD WD_Black SN8507000y159.99 (opens in new tab)210.49 (opens in new tab)534.99 (opens in new tab)
MSI Spatium M4807000n229.99 (opens in new tab)
MSI Spatium M4807000y239.99 (opens in new tab)439.99 (opens in new tab)
Samsung 980 Pro7000y249.99 (opens in new tab)449.99 (opens in new tab)
Seagate Firecuda 5307300y149.99 (opens in new tab)259.99 (opens in new tab)
PNY XLR85600y99.99 (opens in new tab)279.99 (opens in new tab)639.99 (opens in new tab)
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