Gigabyte HD7970 OC Review

Introduction and Technical Specifications

Gigabyte HD7970 OC Review


The last generation of Radeon graphics cards was most definitely a hot noisy bunch. One of the biggest changes with the Tahiti GPUs has been how relatively cool and quiet the HD7970s have been. However, being cool and quiet in reference terms is one thing, but we all know that even the best reference coolers can be bettered with something a bit more robust in the heatsink department.

The other big quality that the HD7970 has is overclocking. Even basic cards can be pushed into 1200MHz and beyond. They overclock as easily as almost anything we've come across so it's no great surprise that we're getting some cards coming out from the manufacturers with decent overclocks 'out of the box'

First up in the big overclock/third-party-cooler line is Gigabyte with the HD7970 OC, replete with their Windforce cooler we last saw on a GTX560Ti 448.

Technical Specifications

The big number you can't help but swoon at is the 1000MHz default clock speed. If you're one of those people who don't like overclocking your £500 purchase then this will obviously be something that should push the Gigabyte high up your list.

ChipsetRadeon HD 7970
Digital max resolution2560 x 1600
Analog max resolution2048 x 1536
Process Technology28 nm
Core Clock1000 MHz
Memory Clock5500 MHz
Memory Size3072 MB
Memory Bus384 bit
Card BusPCI-E 2.1
Memory TypeGDDR5
DVI-I x 1
Mini DisplayPort x 2
Card sizeH=38 mm, L=285 mm, W=126 mm
Power requirement550 W
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Most Recent Comments

02-03-2012, 13:53:56

That blue PCB...

Gigabyte, I am dissapoint.Quote

02-03-2012, 14:21:50

A shame to see the blue PCB, despite seeing early pics with a black PCB... still considering a 7950/Kepler (after TTL reviews of course!) upgrade in the future!Quote

02-03-2012, 14:40:08

what is the difference between the blue and dark PCB

I just bought this for gaming and that is its weakest site, damn Could it be that Tom had a "bad" version or just out of luck to get a good gpu like you see with some cpu when you start to oc??Quote

02-03-2012, 14:46:38

Hello, nice review on it

i got this yesterday one question though, did the one you got make a buzzing sound under load?

because mine does but its great other then the buzzin as soon as i quit bf3 it stopps buzzing :s i may have to take it back if not

its all running fine BF3 maxed out getting anywhere from 50 - 90 fps on stock.Quote

02-03-2012, 14:47:26

I think it's more than time the performance going down when a card is overclocked is seriously looked at.

Is it actually £500 for the 9/10 for the price score ? I have no idea on the actual.

Lovely coolers these.

If you're a Batman fan, you still save your cash and get a 560ti.. it's crazy what optimizing for one game can do.

.. and they don't like the synthetic Unigine.

pcie 2.1 ?Quote

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