Geforce GTX 670 vs Radeon HD 6750

Intro

Compare those specs to the Radeon HD 6750, which has a clock speed of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also makes use of a 128-bit bus, and uses a 40 nm design. It is made up of 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 670		170 Watts
	Difference: 84 Watts (98%)

Memory Bandwidth

The Geforce GTX 670 should theoretically be quite a bit faster than the Radeon HD 6750 overall. (explain)

Geforce GTX 670		192000 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 128000 (200%)

Texel Rate

The Geforce GTX 670 is a lot (more or less 293%) faster with regards to texture filtering than the Radeon HD 6750. (explain)

Geforce GTX 670		102480 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 76380 (293%)

Pixel Rate

If running with a high resolution is important to you, then the Geforce GTX 670 is a better choice, and very much so. (explain)

Geforce GTX 670		29280 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 17680 (152%)

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 maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If the card has DDR memory, it should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed 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 worked out by multiplying the number of Render Output Units by the the core clock speed. 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 quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.