Unlike the GTX TITAN which also carries a $1,000 price tag, the HD 7990 6GB really looks like a mean expensive video card with a massive three fan setup that covers it completely left to right. The cooler is an absolute beast and the press documents from AMD have put a large focus on the quietness of the cooler. Looking above it would come as no surprise this is a quiet cooler due to the multi fan setup which allows for the fans to spin at a lower speed while pushing more air than a single higher RPM fan.
Outside of the three fan setup, I think what's really awesome is the massive heatsink that sits behind it. You can see that it is split into two parts - one hovering over each GPU, and four copper heat pipes protrude at the end. This is a really massive card that looks and feels fantastic. We'll see later in the review if the cooler performs as well as it looks.
Taking a look around you can see power comes in the form of two 8-pin PCIe power connectors. This doesn't come as much of a surprise, if anything we're probably slightly more surprised by the fact we've got only two power connectors since the PowerColor Devil13 carried with it three 8-pin PCIe power connectors. You can see the position is slightly more forward than you'd expect, as well.
Staying across the top, but moving to the front, you can see a single CrossFire connector, which means we can run this card with just one other HD 7990. That's not a surprise as we know CrossFire technology goes up to four GPUs as a maximum. You can also see a little switch that we've seen present on higher end AMD offerings, and it switches between two BIOSs. We'll no doubt learn more about how companies intend to make use of it when we see retail versions of the card in the market. If past experiences are anything to go by, we'll more than likely see companies offer two different speeds - one stock and one overclocked, with the flick of the switch.
The I/O side of things is the area I really love. As someone who is a massive fan of DisplayPort, it's awesome to see AMD opt for four mini DisplayPort connectors, alongside one Dual-Link DVI - it allows a total of five monitors. I really wish NVIDIA would embrace DP technology more and offer something like this.
Specification wise the HD 7990 shares a lot of similarities to the HD 7970 GHz with the main difference being that most of the numbers are simply just doubled due to the fact we're dealing with two cores. We're still dealing with a 28nm core, although in this case two. Transistors are doubled to 8.6 billion, Stream processors also to 4,096, Texture units to 256, ROPs to 64 and memory interface to 2x 384-bit.
Compared to the stock HD 7970 GHz Edition clocks are nearly identical. The core has been slightly reduced 50MHz to an even 1,000MHz, and the 6GB of GDDR5 carries the same 6,000MHz QDR clock.
Essentially we're dealing with a pair of HD 7970 GHz Edition video cards on a single PCB, with just a 50MHz decrease on the core.
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- Page 1 [Introduction]
- Page 2 [The Card and Specifications]
- Page 3 [Benchmarks - Test System Setup]
- Page 4 [Benchmarks - 3DMark 11]
- Page 5 [Benchmarks - Unigine Heaven Benchmark]
- Page 6 [Benchmarks - Phantasy Star Online 2]
- Page 7 [Benchmarks - Lost Planet 2]
- Page 8 [Benchmarks - Just Cause 2]
- Page 9 [Benchmarks - F1 2012]
- Page 10 [Benchmarks - Metro 2033]
- Page 11 [Benchmarks - Dirt Showdown]
- Page 12 [Benchmarks - Nexuiz]
- Page 13 [Benchmarks - Sniper Elite V2]
- Page 14 [Benchmarks - Sleeping Dogs]
- Page 15 [Benchmarks - Far Cry 2]
- Page 16 [Benchmarks - Hitman Absolution]
- Page 17 [Benchmarks - Tomb Raider]
- Page 18 [Benchmarks - BioShock Infinite]
- Page 19 [Benchmarks - High Quality AA and AF]
- Page 20 [Temperature Test]
- Page 21 [Sound Test]
- Page 22 [Power Consumption Test]
- Page 23 [Pricing, Availability and Final Thoughts]
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