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Review: AMD Athlon II X4 620 and 630: introducing the budget quad-core CPUs

by Tarinder Sandhu on 16 September 2009, 05:00 4.1

Tags: Athlon II X4 620, AMD (NYSE:AMD)

Quick Link: HEXUS.net/qatyg

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Final thoughts and rating

AMD's release of the Athlon II X4 620 and 630 brings quad-core processing to budgets that previously would have been swallowed by decent dual-core chips.

Starting off at around £75 for the 2.6GHz-clocked '620, performance is partially castrated by the removal of 6MB of L3 cache when compared with full-fat Phenom II X4s.

The lack of on-chip L3 cache, however, makes the chips significantly cheaper to produce for AMD, evinced by the projected street price, yet performance is still comparatively strong when evaluated over a broad range of benchmarks and compared against the more-expensive Intel Core 2 Quad Q8200.

Indeed, hook the quad-core Athlons up to a well-featured 780G/785G motherboard, throw in 4GB of quality memory and one should receive a fistful of change from £200.

Some may argue, with some justification, that a higher-clocked dual-core part would be a better bet - an Intel Core 2 Duo E8xxx or AMD Phenom II X2 550, for example. We'd always opt for more cores given a choice, simply because you can add clock-speed by better cooling and overclocking, but enabling 'additional' execution cores is a rarity - X3 to X4, for example.

Given an ideal world we'd like a lower TDP - 65W or so - and an unlocked multiplier for the enthusiast to tinker with. Other than that, there's little to criticise here once price is factored in.

What AMD has done is bring significant parallel processing within the reach of a larger percentage of the computer-buying population. That's a good thing for both the company and the industry, and we're eager to see how Intel will respond. A dual-core chip with integrated graphics is in the pipeline, known as Clarkdale, but, for now, the Athlon II X4 620 and 785G chipset combination is hard to ignore as a base for a (relatively) budget Windows 7 PC build.

HEXUS Rating

We consider any product score above '50%' as a safe buy. The higher the score, the higher the recommendation from HEXUS to buy. Simple, straightforward buying advice.

The rating is given in relation to the category the component competes in, therefore the CPU is evaluated with respect to our 'mid-range components' criteria, where value plays a larger part in the overall score.

82%

AMD Athlon II X4 620 (at £75)


HEXUS Awards

Solid performance and an attractive etail price garner the chip the good value award.


AMD Athlon II X4 620 (at £75)


HEXUS Where2Buy

The AMD Athlon II X4 920 can be purchased from SCAN.co.uk* at a cost of £76.18.

*As always, UK-based HEXUS.community discussion forum members will benefit from the SCAN2HEXUS Free Shipping initiative, which will save you a further few pounds plus also top-notch, priority customer service and technical support backed up by the SCANcare@HEXUS forum.

HEXUS Right2Reply

At HEXUS, we invite the companies whose products we test to comment on our articles. If any company representatives for the products reviewed choose to respond, we'll publish their commentary here verbatim.



HEXUS Forums :: 27 Comments

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that quad core is hugely impressive for the money it costs.
I'm guessing you got stock direct from Gigabyte but if not where did you get the Sideport enabled board from - the Gigabyte MA-GA785GPMT-UD2H? (which i believe is actually GA-MA rather than the other way around link)

I've been hunting for a while but can only find the non-side port enabled version - with no P in the model name.

Also I'm wating for the 405e tri-core version (2.3ghz) of these Athlon II's to hit retail, early reports are saying the fourth core is unlockable to a full quad. And it only has TDP of 45w, which should make for a idle power consumption even lower than the already good 48w of the 95w TDP version reviewed here - perfect for a htpc.
Welcome back AMD - great performance at low cost - a win for me!
my upcoming build is getting harder and harder to decide.
Quad core Athlon II 620
Tri Core Phenom II 720
Quad Core i5 750

gah…!
GavinAshford
Also I'm wating for the 405e tri-core version (2.3ghz) of these Athlon II's to hit retail, early reports are saying the fourth core is unlockable to a full quad. And it only has TDP of 45w, which should make for a idle power consumption even lower than the already good 48w of the 95w TDP version reviewed here - perfect for a htpc.
If it manages to be anything like the idle on a Sempron 140 (which is an Athlon II X2 with one core turned off and *is* unlockable - I've done it to mine ;) ) it should be very good. Also if you get a sufficiently well featured motherboard (I've got the mATX ASUS 785G EVO board) you can unvolt the processor for even greater power savings - my Sempron's currently running happily @ 1.2v, dropping to ~ 0.8v at idle with C&Q turned on…

I think the significance of these releases - and IMNSHO they are extremely significant - is that they bring multi-threaded goodness to the masses. This should encourage more developers to code efficiently for multiple cores, which will start making multicore processors a lot more desirable (at the minute I see very little day to day difference between my C2Q 6600 and my Sempron 140 - the vast majority of programs I run simply don't use the extra 3 cores…)