GeForce GTX 260 Core 216 vs Radeon HD 7750

Intro

Compare all of that to the Radeon HD 7750, which has core speeds of 800 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 RAM. It features 512 SPUs as well as 32 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 7750		55 Watts
GeForce GTX 260 Core 216		202 Watts
	Difference: 147 Watts (267%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 260 Core 216 should in theory be a lot better than the Radeon HD 7750 in general. (explain)

GeForce GTX 260 Core 216		111888 MB/sec
Radeon HD 7750		72000 MB/sec
	Difference: 39888 (55%)

Texel Rate

The GeForce GTX 260 Core 216 should be quite a bit (more or less 62%) better at anisotropic filtering than the Radeon HD 7750. (explain)

GeForce GTX 260 Core 216		41472 Mtexels/sec
Radeon HD 7750		25600 Mtexels/sec
	Difference: 15872 (62%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 260 Core 216 is the winner, and very much so. (explain)

GeForce GTX 260 Core 216		16128 Mpixels/sec
Radeon HD 7750		12800 Mpixels/sec
	Difference: 3328 (26%)

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 largest amount of information (measured in MB per second) that can be transferred past the external memory interface in one second. It's calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the clock speed of the card. 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 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.