GeForce 9800 GTX vs Radeon HD 5750 1GB

Intro

Compare that to the Radeon HD 5750 1GB, which has a clock speed of 700 MHz and a GDDR5 memory speed of 1150 MHz. It also uses a 128-bit bus, and uses a 40 nm design. It features 720(144x5) SPUs, 36 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 1GB		86 Watts
GeForce 9800 GTX		140 Watts
	Difference: 54 Watts (63%)

Memory Bandwidth

Performance-wise, the Radeon HD 5750 1GB should in theory be a bit superior to the GeForce 9800 GTX in general. (explain)

Radeon HD 5750 1GB		73600 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce 9800 GTX should be a lot (about 71%) faster with regards to anisotropic filtering than the Radeon HD 5750 1GB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon HD 5750 1GB		25200 Mtexels/sec
	Difference: 18000 (71%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the Radeon HD 5750 1GB is the winner, though only just barely. (explain)

Radeon HD 5750 1GB		11200 Mpixels/sec
GeForce 9800 GTX		10800 Mpixels/sec
	Difference: 400 (4%)

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 largest amount of information (in units of megabytes per second) that can be transferred past the external memory interface in one second. It is calculated by multiplying the card's bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total number of texture units of the card by the core speed of the chip. The better the texel rate, the better the graphics card will be at 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 video card can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.