GeForce GTX 570 vs Radeon HD 6990

Intro

Compare all of that to the Radeon HD 6990, which comes with clock speeds of 830 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs as well as 96 TAUs and 32 Rasterization Operator Units.

Display Graphs

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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 570		4387 points
	Difference: 1433 (33%)

Ethereum Mining Hash Rate

Radeon HD 6990		24 Mh/s
GeForce GTX 570		13 Mh/s
	Difference: 11 (85%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 570		219 Watts
Radeon HD 6990		375 Watts
	Difference: 156 Watts (71%)

Memory Bandwidth

Theoretically, the Radeon HD 6990 should perform quite a bit faster than the GeForce GTX 570 in general. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 570		152000 MB/sec
	Difference: 168000 (111%)

Texel Rate

The Radeon HD 6990 should be quite a bit (approximately 263%) faster with regards to texture filtering than the GeForce GTX 570. (explain)

Radeon HD 6990		159360 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 115440 (263%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon HD 6990 is the winner, by far. (explain)

Radeon HD 6990		53120 Mpixels/sec
GeForce GTX 570		29280 Mpixels/sec
	Difference: 23840 (81%)

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

Specifications

Memory Bandwidth: Memory bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.