GeForce GTX 470 vs Radeon HD 5750 1GB

Intro

Compare all that to the Radeon HD 5750 1GB, which comes with GPU core speed of 700 MHz, and 1024 MB of GDDR5 memory running at 1150 MHz through a 128-bit bus. It also is made up of 720(144x5) SPUs, 36 Texture Address Units, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce GTX 470		215 Watts
	Difference: 129 Watts (150%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be 82% faster than the Radeon HD 5750 1GB overall, due to its higher data rate. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5750 1GB		73600 MB/sec
	Difference: 60320 (82%)

Texel Rate

The GeForce GTX 470 is a lot (more or less 35%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 8792 (35%)

Pixel Rate

The GeForce GTX 470 will be much (more or less 117%) faster with regards to anti-aliasing than the Radeon HD 5750 1GB, and also will be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5750 1GB		11200 Mpixels/sec
	Difference: 13080 (117%)

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 maximum amount of information (measured in MB per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by the speed of its memory. If the card has DDR memory, 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be processed in one second. This is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher this number, the better the graphics 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 maximum amount of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the core speed of the card. 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 output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.