GeForce GTX 660 vs Radeon HD 5750 512MB

Intro

Compare all that to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 memory runs at a speed of 1150 MHz on this particular model. It features 720(144x5) SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 660		140 Watts
	Difference: 54 Watts (63%)

Memory Bandwidth

The GeForce GTX 660, in theory, should perform much faster than the Radeon HD 5750 512MB in general. (explain)

GeForce GTX 660		144192 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 70592 (96%)

Texel Rate

The GeForce GTX 660 should be quite a bit (more or less 211%) faster with regards to texture filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 660		78400 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 53200 (211%)

Pixel Rate

The GeForce GTX 660 is much (approximately 110%) faster with regards to FSAA than the Radeon HD 5750 512MB, and should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 660		23520 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 12320 (110%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface in a second. It is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR 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 AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number 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 clock speed of the chip. The better this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.