GeForce 9800 GTX+ vs Radeon HD 5750 512MB

Intro

Compare those specs to the Radeon HD 5750 512MB, which makes use of 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 particular card. It features 720(144x5) SPUs as well as 36 TAUs 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+		145 Watts
	Difference: 59 Watts (69%)

Memory Bandwidth

In theory, the Radeon HD 5750 512MB should perform a little 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+ should be quite a bit (about 87%) better at AF 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+ should be a bit (about 5%) better at full screen anti-aliasing than the Radeon HD 5750 512MB, and also will be capable of handling higher resolutions while still performing well. (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 max amount of data (counted in megabytes per second) that can be transferred over the external memory interface within a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly record to its local memory in one 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.