GeForce GTX 650 vs Radeon HD 5750 512MB

Intro

Compare those specifications to the Radeon HD 5750 512MB, which has core clock speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 RAM. 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)

GeForce GTX 650		64 Watts
Radeon HD 5750 512MB		86 Watts
	Difference: 22 Watts (34%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 650 should theoretically be a bit better than the Radeon HD 5750 512MB overall. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 6400 (9%)

Texel Rate

The GeForce GTX 650 is a lot (approximately 34%) better at AF than the Radeon HD 5750 512MB. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 8656 (34%)

Pixel Rate

The GeForce GTX 650 is a lot (about 51%) more effective at AA than the Radeon HD 5750 512MB, and also should be capable of handling higher resolutions while still performing well. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 5728 (51%)

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 max amount of data (counted in megabytes per second) that can be moved across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better 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 number of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total amount of texture units of the card 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 processed per second.

Pixel Rate: Pixel rate is the most pixels the video card can 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 colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.