GeForce GTX 1070 Ti vs Radeon HD 6990

Intro

Compare those specs 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 memory. It features 1536 SPUs as well as 96 Texture Address Units and 32 ROPs.

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

GeForce GTX 1070 Ti		19808 points
Radeon HD 6990		5820 points
	Difference: 13988 (240%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 1070 Ti		180 Watts
Radeon HD 6990		375 Watts
	Difference: 195 Watts (108%)

Memory Bandwidth

In theory, the Radeon HD 6990 will be 22% faster than the GeForce GTX 1070 Ti overall, due to its greater data rate. (explain)

Radeon HD 6990		320000 MB/sec
GeForce GTX 1070 Ti		262144 MB/sec
	Difference: 57856 (22%)

Texel Rate

The GeForce GTX 1070 Ti should be a lot (about 53%) better at AF than the Radeon HD 6990. (explain)

GeForce GTX 1070 Ti		244264 Mtexels/sec
Radeon HD 6990		159360 Mtexels/sec
	Difference: 84904 (53%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 1070 Ti is a better choice, by a large margin. (explain)

GeForce GTX 1070 Ti		102848 Mpixels/sec
Radeon HD 6990		53120 Mpixels/sec
	Difference: 49728 (94%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.