GeForce GTX 560 vs Radeon HD 6750

Intro

Compare that to the Radeon HD 6750, which features 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 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce GTX 560		150 Watts
	Difference: 64 Watts (74%)

Memory Bandwidth

The GeForce GTX 560 should in theory be much faster than the Radeon HD 6750 overall. (explain)

GeForce GTX 560		128128 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 64128 (100%)

Texel Rate

The GeForce GTX 560 should be a lot (more or less 74%) faster with regards to texture filtering than the Radeon HD 6750. (explain)

GeForce GTX 560		45360 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 19260 (74%)

Pixel Rate

The GeForce GTX 560 will be quite a bit (about 123%) better at FSAA than the Radeon HD 6750, and also able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 560		25920 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 14320 (123%)

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 information (in units of megabytes per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the bus width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster 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 number of texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The higher the texel rate, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.