GeForce 9800 GTX vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which uses a 40 nm design. AMD has clocked the core speed at 700 MHz. The GDDR5 RAM is set to run at a frequency of 1150 MHz on this model. It features 720(144x5) SPUs along with 36 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 9800 GTX		140 Watts
	Difference: 54 Watts (63%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 5750 512MB should perform a bit faster than the GeForce 9800 GTX overall. (explain)

Radeon HD 5750 512MB		73600 MB/sec
GeForce 9800 GTX		70400 MB/sec
	Difference: 3200 (5%)

Texel Rate

The GeForce 9800 GTX should be a lot (more or less 71%) more effective at anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce 9800 GTX		43200 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 18000 (71%)

Pixel Rate

The Radeon HD 5750 512MB should be a small bit (more or less 4%) better at full screen anti-aliasing than the GeForce 9800 GTX, and also able to handle higher screen resolutions more effectively. (explain)

Radeon HD 5750 512MB		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: Bandwidth is the largest amount of information (measured in MB per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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