Geforce GTX 770 vs Radeon HD 6750

Intro

Compare those specifications to the Radeon HD 6750, which has GPU core speed of 725 MHz, and 512 MB of GDDR5 RAM running at 1000 MHz through a 128-bit bus. It also features 720 SPUs, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
Geforce GTX 770		230 Watts
	Difference: 144 Watts (167%)

Memory Bandwidth

Performance-wise, the Geforce GTX 770 should theoretically be quite a bit better than the Radeon HD 6750 overall. (explain)

Geforce GTX 770		224384 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 160384 (251%)

Texel Rate

The Geforce GTX 770 will be much (approximately 413%) better at AF than the Radeon HD 6750. (explain)

Geforce GTX 770		133888 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 107788 (413%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Geforce GTX 770 is the winner, by a large margin. (explain)

Geforce GTX 770		33472 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 21872 (189%)

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 largest amount of data (in units of MB per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the card's interface width by its memory speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This figure is worked out by multiplying the total number of texture units of the card by the core clock 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 in a second.

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