Geforce GTX 770 vs Radeon HD 6970

Intro

Compare that to the Radeon HD 6970, which has a GPU core clock speed of 880 MHz, and 2048 MB of GDDR5 RAM running at 1375 MHz through a 256-bit bus. It also is comprised of 1536 Stream Processors, 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 770		7854 points
Radeon HD 6970		3470 points
	Difference: 4384 (126%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 770		230 Watts
Radeon HD 6970		250 Watts
	Difference: 20 Watts (9%)

Memory Bandwidth

Performance-wise, the Geforce GTX 770 should in theory be a lot superior to the Radeon HD 6970 overall. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 48384 (27%)

Texel Rate

The Geforce GTX 770 will be much (more or less 58%) better at anisotropic filtering than the Radeon HD 6970. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 49408 (58%)

Pixel Rate

If running with a high screen resolution is important to you, then the Geforce GTX 770 is a better choice, not by a very large margin though. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 5312 (19%)

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.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the largest amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. It is calculated by multiplying the card's bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the 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 amount of texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.