Geforce GTX 670 vs Radeon HD 6970

Intro

Compare all that to the Radeon HD 6970, which has core speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 memory. 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

Geforce GTX 670		7351 points
Radeon HD 6970		3470 points
	Difference: 3881 (112%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 670		170 Watts
Radeon HD 6970		250 Watts
	Difference: 80 Watts (47%)

Memory Bandwidth

In theory, the Geforce GTX 670 will be 9% quicker than the Radeon HD 6970 overall, because of its higher bandwidth. (explain)

Geforce GTX 670		192000 MB/sec
Radeon HD 6970		176000 MB/sec
	Difference: 16000 (9%)

Texel Rate

The Geforce GTX 670 should be quite a bit (approximately 21%) faster with regards to texture filtering than the Radeon HD 6970. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 6970		84480 Mtexels/sec
	Difference: 18000 (21%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 670 is a better choice, but not by far. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon HD 6970		28160 Mpixels/sec
	Difference: 1120 (4%)

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: Memory bandwidth is the largest amount of information (in units of MB per second) that can be transported across the external memory interface in one second. The number is worked out by multiplying the bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is calculated by multiplying the total texture units 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 applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.