Geforce GTX 690 vs Radeon HD 6750

Intro

Compare those specs to the Radeon HD 6750, which has core clock speeds of 725 MHz on the GPU, and 1000 MHz on the 512 MB of GDDR5 RAM. It features 720 SPUs along with 36 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
Geforce GTX 690		300 Watts
	Difference: 214 Watts (249%)

Memory Bandwidth

As far as performance goes, the Geforce GTX 690 should theoretically be much superior to the Radeon HD 6750 in general. (explain)

Geforce GTX 690		384512 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 320512 (501%)

Texel Rate

The Geforce GTX 690 is a lot (approximately 797%) faster with regards to AF than the Radeon HD 6750. (explain)

Geforce GTX 690		234240 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 208140 (797%)

Pixel Rate

The Geforce GTX 690 should be a lot (more or less 405%) more effective at FSAA than the Radeon HD 6750, and will be capable of handling higher resolutions while still performing well. (explain)

Geforce GTX 690		58560 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 46960 (405%)

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 maximum amount of information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the bus width by its memory speed. If it uses DDR memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, 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 amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends 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.