GeForce 9800 GTX+ vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which features core speeds of 700 MHz on the GPU, and 1150 MHz on the 512 MB of GDDR5 memory. It features 720(144x5) SPUs along with 36 TAUs and 16 ROPs.

(No game benchmarks for this combination yet.)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 5750 512MB		86 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 59 Watts (69%)

Memory Bandwidth

Theoretically, the Radeon HD 5750 512MB should be a bit faster than the GeForce 9800 GTX+ in general. (explain)

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

Texel Rate

The GeForce 9800 GTX+ will be quite a bit (approximately 87%) faster with regards to anisotropic filtering than the Radeon HD 5750 512MB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon HD 5750 512MB		25200 Mtexels/sec
	Difference: 22032 (87%)

Pixel Rate

The GeForce 9800 GTX+ will be a small bit (approximately 5%) faster with regards to AA than the Radeon HD 5750 512MB, and capable of handling higher screen resolutions better. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon HD 5750 512MB		11200 Mpixels/sec
	Difference: 608 (5%)

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 data (measured in megabytes per second) that can be transferred across the external memory interface within a second. It's calculated by multiplying the card's bus 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 bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly write to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.