Geforce GTX 760 vs Radeon HD 6950 2GB

Intro

Compare all that to the Radeon HD 6950 2GB, which comes with clock speeds of 800 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 memory. It features 1408 SPUs as well as 88 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Geforce GTX 760		170 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 30 Watts (18%)

Memory Bandwidth

In theory, the Geforce GTX 760 is 20% quicker than the Radeon HD 6950 2GB overall, due to its higher bandwidth. (explain)

Geforce GTX 760		192256 MB/sec
Radeon HD 6950 2GB		160000 MB/sec
	Difference: 32256 (20%)

Texel Rate

The Geforce GTX 760 is quite a bit (approximately 34%) better at AF than the Radeon HD 6950 2GB. (explain)

Geforce GTX 760		94080 Mtexels/sec
Radeon HD 6950 2GB		70400 Mtexels/sec
	Difference: 23680 (34%)

Pixel Rate

The Geforce GTX 760 will be quite a bit (more or less 23%) better at FSAA than the Radeon HD 6950 2GB, and will be able to handle higher resolutions more effectively. (explain)

Geforce GTX 760		31360 Mpixels/sec
Radeon HD 6950 2GB		25600 Mpixels/sec
	Difference: 5760 (23%)

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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface within a second. It's calculated by multiplying the bus width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the faster 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 amount of texture map elements (texels) that can be processed in one second. This figure is calculated by multiplying the total texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a 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. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.