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Review: XFX R7870 Black Edition Overclocked

by Parm Mann on 30 March 2012, 16:00 3.0

Tags: XFX (HKG:1079), AMD (NYSE:AMD)

Quick Link: HEXUS.net/qabelf

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Final thoughts and rating

We've had three attempts, but we've yet to find a custom Radeon HD 7870 that's fundamentally better than AMD's reference design.

A lot of credit has to go to AMD's standard cooler - it finds a sweet spot between minimal noise and low temperatures, and the reference frequencies help deliver strong 1080p performance with best-in-class power consumption.

Beating that initial formula is proving to be tricky. The Gigabyte 7870 OC and PowerColor 7870 PCS+ didn't quite manage to do it, and XFX falls short, too. Sure, the card's quicker than reference as a result of the modest out-the-box overclock, and it's fractionally quieter, too, but on the flip side power consumption and temperature go up by 20 per cent and 10 per cent, respectively.

Factor in the £300 price tag - £35 more than a reference design - and the picture gets cloudier still. The R7870 Black Edition is a good card, and one that delivers an excellent full-HD gaming experience, but at this price it's tough to recommend over a cheaper reference board.

The Good

Quicker than reference
Extremely quiet in use
Good looking design

The Bad

Pricey for a Radeon HD 7870
Temps higher than anticipated
Increased power consumption

HEXUS Rating

4/5
XFX R7870 Black Edition Overclocked

HEXUS Awards


XFX R7870 Black Edition Overclocked

HEXUS Where2Buy

The XFX R7870 Black Edition Overclocked graphics card is available to purchase from scan.co.uk*.

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.



*UK-based HEXUS community members are eligible for free delivery and priority customer service through the SCAN.care@HEXUS forum.



HEXUS Forums :: 4 Comments

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Hmm, well on KitGuru they said that the Gigabyte was one of the quietest cards they've ever tested ! Were you using different models or something ? is the fan profile changeable ?
I'm more concerned about the difference in power draws between the AMD sample and the third party vendor (real) models. Looks like Hexus got a low voltage reference card, hence the coolness etc. but the real cards are volted a bit higher.
Many of non-reference cards in general are not only pre-overclocked but some have differently designed PCBs and coolers which might affect efficiency. It is not even the first time that an AMD/ATI reference card has had a better PCB design.

A prime example are the reference HD5850 1GB cards,which used more expensive Volterra PWMs.

The PowerColor,VTX3D and Club3D cards are reference models running at reference clockspeeds and with the reference cooler,so unless one of these are tested it is hard to say whether the review samples are cherry picked or not.

Edit!!

KitGuru supposedly uses card power measurements like TPU:

http://www.kitguru.net/components/graphic-cards/zardon/gigabyte-hd7870-overclock-review-windforce-3x/19/

http://www.kitguru.net/components/graphic-cards/zardon/xfx-hd7870-black-edition-overclocked-graphics-card-review/19/

Their measurements seem to show little variation between models even with the XFX card! According to KitGuru,XFX supplied them with a modified BIOS which helped reduce GPU temperatures by ramping up the fan.

Anyway,Anandtech has listed the voltages for their non-reference models too:

http://www.anandtech.com/show/5691/the-retail-radeon-hd-7870-review-his-7870-iceq-turbo-powercolor-pcs-hd7870/4

It seems the reference model they received and the two non-reference models they tested all have the same default voltage.

It seems despite this one of the models consumed far more power than the other two,and Anandtech says it might be down to the fact the model is overclocked and runs slightly hotter leading to more leakage.
My Gigabyte 7850 is almost inaudible. It's the quietest (air cooled) graphics card I've seen. Perhaps the Hexus' one has a fan defect. Or perhaps it's set to a different cooling profile? My 7850 does have manual fan control in Catalyst CP, EvanJackPenn. ;)

Either way, nice honest review Hexus.