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Graphics cards Reviews
15,670 Reviews

nVidia GeForce GTX 480 review

£359.04 inc VAT

Manufacturer: Nvidia

Our Rating: We rate this 3.5 out of 5

At long last, nVidia's first DirectX 11 graphics card is here - and for better or worse, the nVidia GeForce GTX 48 is quite a beast.

At long last, nVidia's first DirectX 11 graphics card is here - and for better or worse, the nVidia GeForce GTX 48 is quite a beast.

Is the GeForce GTX 480 fashionably late, or just plain late? ATI has been tooting the DirectX 11 horn for quite some time now, while its competitors laboured on a rebuttal.

The nVidia GeForce GTX 48 card is based on nVidia's new Fermi architecture. The feature-list is considerable: over 3 billion transistors, double the processing units of its predecessors (though ATI and nVidia count these differently), and a strong emphasis on geometric realism. nVidia's Fermi page is chocked full of information and demonstrations, and includes white papers detailing the strides they've made.

Priced at £449, the GeForce GTX 480 is squarely aimed at... no competing product. The obvious target would be the reigning graphics card champ, ATI's Radeon HD 5870 - but that card can generally be found for a lot less. The 5870's bigger brother would be the next logical step, but that's a dual-GPU card, typically a lot more expensive.

As the nVidia GeForce GTX 480 is nVidia's fastest single-card GPU, we opted to centre our first look at the part around ATI's fastest single-card GPU, the Radeon HD 5870. To even the playing field a bit, we also took a look at MSI's R5870 Lightning.

High-end components deserve a high-end test bed: Ours is equipped with Intel's Core i7-975 Extreme Edition processor, a DX58SO motherboard, 6 GB of RAM, and a 1300W power supply. All tests were performed at 1920-by-1200 and 2560-by-1600 resolutions on a 30in display, and highest settings (unless otherwise noted).

nVidia GeForce GTX 480: Synthetic Benchmarks

While generally not indicative of real-world performance, synthetic benchmarks are a generally accepted industry standard, and can help us get an general idea of how these graphics cards will perform in the wild.

We started with a look at graphics tests using Futuremark's 3DMark Vantage. 3DMark offers a pair of DirectX 10-based game demos, which emulate a typical game's strain on a graphics card.

One test emulates an indoor action sequence, simulating cloth, light and water reflection, and static object rendering. The second test takes place in outer space, simulating shadow-mapping, and rendering large scenes consisting entirely of moving objects. The scores were close: the nVidia GeForce GTX 480 saw a negligible 0.1 percent gain over the 5870, while the overclocked R5870 took the lead with a gain of almost 4 percent over the GTX 480.

For our second synthetic test, we used the latest release of Unigine's Heaven Benchmark. Heaven is a DirectX 11-based game engine, designed to make the most of next-generation technologies. There is no actual game behind the benchmark's fantasy setting, but the benchmark cycles through a few scenes, offering an idea of what navigating the world under a variety of settings could look like, and how strenuously it would tax your system.

nVidia has been beating the geometric realism drum for some time now, and Heaven's tessellation feature set made for an ideal test scenario. Hardware tessellation consists of breaking down polygons into smaller pieces. This results in an improved level of detail, with visually complex in-game models. While the technology isn't new, it has typically been relegated to 3D models in films - to date, graphics cards haven't been able to achieve a satisfying level of performance while employing tessellation.

The results of our Heaven benchmark are pretty much in line with that assessment. The nVidia GeForce GTX 480 leads the pack, particularly once anti-aliasing is turned on. Of note: we performed these tests at Moderate tessellation, which is generally indicative of the level of tessellation we'd see in games today. The Heaven benchmark also offers Normal and Extreme tessellation modes, but both of our 5870s posted exceedingly low frames - on the order of 1 - 3 frames per second - when we pushed the benchmark to its upper limits.

The fault lies with the video memory: the nVidia GeForce GTX 480 is bundled with 1.5GB of video memory, while our 5870s are limited to 1GB. When pressed, the GTX 480 didn't post playable frame rates, but managed to complete the benchmark. At the 1920-by-1200 resolution under Extreme tessellation at 16x anti-aliasing, we saw an average of 25 frames per second. With the same test at a 2560-by-1600 resolution, we saw 17.3 frames per second. Neither one makes a very good gaming experience, but it does show quite a bit of potential for tessellation, later on.

For our final synthetic test, we used FurMark - an open-sourced, OpenGL benchmarking tool. It's tests are based on fur-rendering algorithms to test, and place rather extreme levels of pressure on a GPU in the process. Our tests were conducted at a resolution of 1920-by-1200 pixels, at 0x-, 4x-, and 8x-multi-sampled anti-aliasing. As our handy chart shows, the GTX 480 lead the pack, followed by the overclocked 5870.

Keep in mind however that synthetic benchmarks are not the greatest measure of actual performance - and this disclaimer goes doubly so for FurMark. You'd be hard pressed to find an application that will stress a graphics card as exhaustively as FurMark does - and there have been instances where warranties were voided.

Where FurMark does excel, however, is in giving us a good idea of what these cards would look like when operating at their upper limits. During a minute-long FurMark run we saw the nVidia GeForce GTX 480 get as hot as 95 degrees Celsius - that's 203 degrees Fahrenheit. Our stock HD 5870 peaked at 75 degrees Celsius (167 degrees Fahrenheit), while the overclocked R5870 Lightning reached 78 degrees Celsius (172 degrees Fahrenheit).

NEXT: games performance >>

nVidia GeForce GTX 480 Expert Verdict »

GPU: 700Mhz
MEM: 3696MHz
CUDA Core Clock: 1401MHz
Memory size: 1536MB GDDR5
HDCP ready
Mini HDMI Native Port
Graphics Engine GeForce GTX480
Bus Standard PCI Express® 2.0
Video Memory 1536MB GDDR5
Engine Clock 700 MHz
CUDA Core Clock 1401MHz
Memory Clock 3696MHz (924MHz GDDR5)
Memory Interface 256 bit
DVI Max. Resolution 2560 * 1600
DSub Max. Resolution 2048 * 1536
DVI Output 1x Native Dual-link DVI-I
HDMI Output 1x Native (Mini HDMI)
D-Sub Output 1x via adaptor
HDCP compliant YES
Software Bundled ASUS Utiities & Driver
Note The card size is 11x5.5in
  • Overall: We give this item 7 of 10 overall

All things considered, there's a lot to like here. The Fermi architecture has a lot to offer, particularly where anti-aliasing or tessellation are concerned. The 5870 does have a considerable advantage over the nVidia GeForce GTX 480 in a number of places. It's overall power draw is lower, it often delivers comparable performance for less, and some perks - powering 3 displays from a single GPU - have yet to be addressed by nVidia. As it stands, until the more games start to take advantage of the technology that Fermi hopes to offer, we'd advise weighing the performance, power, and price benefits before handing over your credit card.

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