GeForce GTX 590 vs Radeon HD 6750 1GB

Intro

Compare all that to the Radeon HD 6750 1GB, which comes with core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 1024 MB of GDDR5 memory. It features 720 SPUs as well as 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce GTX 590		365 Watts
	Difference: 279 Watts (324%)

Memory Bandwidth

In theory, the GeForce GTX 590 should be 413% faster than the Radeon HD 6750 1GB overall, because of its higher data rate. (explain)

GeForce GTX 590		328320 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 264320 (413%)

Texel Rate

The GeForce GTX 590 should be quite a bit (approximately 198%) more effective at AF than the Radeon HD 6750 1GB. (explain)

GeForce GTX 590		77696 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 51596 (198%)

Pixel Rate

The GeForce GTX 590 will be much (more or less 402%) more effective at FSAA than the Radeon HD 6750 1GB, and should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 590		58272 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 46672 (402%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is worked out by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.