Geforce GTX 770 vs Radeon HD 6950

Intro

Compare those specifications to the Radeon HD 6950, which has a core clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 256-bit bus, and makes use of a 40 nm design. It features 1408 SPUs, 88 TAUs, 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 6950		3240 points
	Difference: 4614 (142%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950		200 Watts
Geforce GTX 770		230 Watts
	Difference: 30 Watts (15%)

Memory Bandwidth

Performance-wise, the Geforce GTX 770 should in theory be a lot better than the Radeon HD 6950 in general. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 6950		160000 MB/sec
	Difference: 64384 (40%)

Texel Rate

The Geforce GTX 770 will be quite a bit (about 90%) faster with regards to AF than the Radeon HD 6950. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 6950		70400 Mtexels/sec
	Difference: 63488 (90%)

Pixel Rate

If using high levels of AA is important to you, then the Geforce GTX 770 is superior to the Radeon HD 6950, and very much so. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 6950		25600 Mpixels/sec
	Difference: 7872 (31%)

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 information (in units of megabytes per second) that can be moved over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. 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 memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to its local memory in a second - measured in millions of pixels per second. The number 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 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 memory bandwidth is, the lower the potential to get to the max fill rate.