GeForce GTX 650 vs Radeon HD 5750 1GB

Intro

Compare all of that to the Radeon HD 5750 1GB, which makes use of a 40 nm design. AMD has set the core frequency at 700 MHz. The GDDR5 RAM runs at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs along with 36 TAUs and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650		64 Watts
Radeon HD 5750 1GB		86 Watts
	Difference: 22 Watts (34%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 650 should be 9% faster than the Radeon HD 5750 1GB in general, due to its higher data rate. (explain)

GeForce GTX 650		80000 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 6400 (9%)

Texel Rate

The GeForce GTX 650 should be a lot (approximately 34%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 650		33856 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 8656 (34%)

Pixel Rate

The GeForce GTX 650 is quite a bit (approximately 51%) more effective at full screen anti-aliasing than the Radeon HD 5750 1GB, and also should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 650		16928 Mpixels/sec
Radeon HD 5750 1GB		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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transported over the external memory interface in one second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the card's clock speed. 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 lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.