Geforce GTX 680 vs Radeon HD 6850

Intro

Compare those specs to the Radeon HD 6850, which comes with GPU core speed of 775 MHz, and 1024 MB of GDDR5 RAM running at 1000 MHz through a 256-bit bus. It also features 960 SPUs, 48 TAUs, 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 680		7650 points
Radeon HD 6850		2395 points
	Difference: 5255 (219%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6850		127 Watts
Geforce GTX 680		195 Watts
	Difference: 68 Watts (54%)

Memory Bandwidth

In theory, the Geforce GTX 680 should be quite a bit faster than the Radeon HD 6850 in general. (explain)

Geforce GTX 680		192256 MB/sec
Radeon HD 6850		128000 MB/sec
	Difference: 64256 (50%)

Texel Rate

The Geforce GTX 680 should be quite a bit (about 246%) faster with regards to texture filtering than the Radeon HD 6850. (explain)

Geforce GTX 680		128768 Mtexels/sec
Radeon HD 6850		37200 Mtexels/sec
	Difference: 91568 (246%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 680 is superior to the Radeon HD 6850, and very much so. (explain)

Geforce GTX 680		32192 Mpixels/sec
Radeon HD 6850		24800 Mpixels/sec
	Difference: 7392 (30%)

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 moved over the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.