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GeForce GTX 480 vs Radeon HD 6990

Intro

The GeForce GTX 480 features a clock frequency of 700 MHz and a GDDR5 memory frequency of 924 MHz. It also makes use of a 384-bit memory bus, and uses a 40 nm design. It features 480 SPUs, 60 Texture Address Units, and 48 Raster Operation Units.

Compare all that to the Radeon HD 6990, which has a clock frequency of 830 MHz and a GDDR5 memory speed of 1250 MHz. It also features a 256-bit memory bus, and makes use of a 40 nm design. It is made up of 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

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Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon HD 6990 5820 points
GeForce GTX 480 3650 points
Difference: 2170 (59%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 480 250 Watts
Radeon HD 6990 375 Watts
Difference: 125 Watts (50%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6990 should perform much faster than the GeForce GTX 480 in general. (explain)

Radeon HD 6990 320000 MB/sec
GeForce GTX 480 177408 MB/sec
Difference: 142592 (80%)

Texel Rate

The Radeon HD 6990 will be a lot (more or less 279%) better at anisotropic filtering than the GeForce GTX 480. (explain)

Radeon HD 6990 159360 Mtexels/sec
GeForce GTX 480 42000 Mtexels/sec
Difference: 117360 (279%)

Pixel Rate

The Radeon HD 6990 should be quite a bit (about 58%) faster with regards to FSAA than the GeForce GTX 480, and also capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6990 53120 Mpixels/sec
GeForce GTX 480 33600 Mpixels/sec
Difference: 19520 (58%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 6990

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model GeForce GTX 480 Radeon HD 6990
Manufacturer nVidia AMD
Year March 2010 March 2011
Code Name GF100 Antilles
Memory 1536 MB 2048 MB (x2)
Core Speed 700 MHz 830 MHz (x2)
Memory Speed 3696 MHz 5000 MHz (x2)
Power (Max TDP) 250 watts 375 watts
Bandwidth 177408 MB/sec 320000 MB/sec
Texel Rate 42000 Mtexels/sec 159360 Mtexels/sec
Pixel Rate 33600 Mpixels/sec 53120 Mpixels/sec
Unified Shaders 480 1536 (x2)
Texture Mapping Units 60 96 (x2)
Render Output Units 48 32 (x2)
Bus Type GDDR5 GDDR5
Bus Width 384-bit 256-bit (x2)
Fab Process 40 nm 40 nm
Transistors 3000 million 2640 million
Bus PCIe x16 PCIe 2.1 x16
DirectX Version DirectX 11 DirectX 11
OpenGL Version OpenGL 4.1 OpenGL 4.1

Memory Bandwidth: Memory bandwidth is the max amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.

Display Prices

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GeForce GTX 480

Amazon.com

Check prices at:

Radeon HD 6990

Amazon.com

Check prices at:

Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Comments

2 Responses to “GeForce GTX 480 vs Radeon HD 6990”
Nieuwe Gaming PC bij Alternate - 9lives - Games Forum says:

[...] [...]

Matheus says:

Eu prefiro muito mais essa 6990 doque a nova HD 7970 ela é muito mais rapida, e fora que a GTX 480 em FPS é melhor doque a HD 7970 q ja foi considerada a placa de video mais rapida do mundo, uma vergonha essa HD 6990 arranca FPS extremos...

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