GeForce GTX 470 vs Radeon HD 5750 512MB

Intro

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

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce GTX 470		215 Watts
	Difference: 129 Watts (150%)

Memory Bandwidth

In theory, the GeForce GTX 470 should be a lot faster than the Radeon HD 5750 512MB in general. (explain)

GeForce GTX 470		133920 MB/sec
Radeon HD 5750 512MB		73600 MB/sec
	Difference: 60320 (82%)

Texel Rate

The GeForce GTX 470 is much (more or less 35%) better at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce GTX 470		33992 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 8792 (35%)

Pixel Rate

The GeForce GTX 470 is much (approximately 117%) better at AA than the Radeon HD 5750 512MB, and able to handle higher resolutions better. (explain)

GeForce GTX 470		24280 Mpixels/sec
Radeon HD 5750 512MB		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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred over the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, 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 maximum amount of pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called 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, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.