Geforce GTX 760 vs Radeon HD 6950 2GB

Intro

Compare those specifications to the Radeon HD 6950 2GB, which has a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is made up of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation 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

Theoretically speaking, the Geforce GTX 760 is 20% faster than the Radeon HD 6950 2GB in general, due to its greater bandwidth. (explain)

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

Texel Rate

The Geforce GTX 760 should be 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

If running with a high resolution is important to you, then the Geforce GTX 760 is a better choice, by far. (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 data (measured in megabytes per second) that can be transported over the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to the local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on many other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.