GeForce GTX 295 vs Radeon HD 6750

Intro

Compare all that 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 TAUs 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 295		289 Watts
	Difference: 203 Watts (236%)

Memory Bandwidth

The GeForce GTX 295, in theory, should perform quite a bit faster than the Radeon HD 6750 overall. (explain)

GeForce GTX 295		223776 MB/sec
Radeon HD 6750		64000 MB/sec
	Difference: 159776 (250%)

Texel Rate

The GeForce GTX 295 is a lot (more or less 253%) faster with regards to anisotropic filtering than the Radeon HD 6750. (explain)

GeForce GTX 295		92160 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 66060 (253%)

Pixel Rate

The GeForce GTX 295 is quite a bit (approximately 178%) more effective at AA than the Radeon HD 6750, and also should be capable of handling higher resolutions more effectively. (explain)

GeForce GTX 295		32256 Mpixels/sec
Radeon HD 6750		11600 Mpixels/sec
	Difference: 20656 (178%)

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: Bandwidth is the maximum amount of information (counted in megabytes per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.