Geforce GTX 770 vs Radeon HD 6950

Intro

Compare all that to the Radeon HD 6950, which comes with GPU clock speed of 800 MHz, and 1024 MB of GDDR5 RAM running at 1250 MHz through a 256-bit bus. It also features 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation 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 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

In theory, the Geforce GTX 770 should be quite a bit faster 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 is much (more or less 90%) more effective at anisotropic filtering than the Radeon HD 6950. (explain)

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

Pixel Rate

The Geforce GTX 770 will be quite a bit (more or less 31%) more effective at AA than the Radeon HD 6950, and also will be able to handle higher resolutions without losing too much performance. (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 data (in units of megabytes per second) that can be transported over the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better 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 texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the max fill rate.