GeForce 9800 GTX+ vs Radeon HD 6750 1GB

Intro

Compare those specifications to the Radeon HD 6750 1GB, which uses a 40 nm design. AMD has clocked the core speed at 725 MHz. The GDDR5 memory runs at a frequency of 1000 MHz on this model. It features 720 SPUs along with 36 TAUs and 16 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750 1GB		86 Watts
GeForce 9800 GTX+		145 Watts
	Difference: 59 Watts (69%)

Memory Bandwidth

As far as performance goes, the GeForce 9800 GTX+ should theoretically be just a bit superior to the Radeon HD 6750 1GB in general. (explain)

GeForce 9800 GTX+		70400 MB/sec
Radeon HD 6750 1GB		64000 MB/sec
	Difference: 6400 (10%)

Texel Rate

The GeForce 9800 GTX+ should be quite a bit (more or less 81%) better at anisotropic filtering than the Radeon HD 6750 1GB. (explain)

GeForce 9800 GTX+		47232 Mtexels/sec
Radeon HD 6750 1GB		26100 Mtexels/sec
	Difference: 21132 (81%)

Pixel Rate

If running with high levels of AA is important to you, then the GeForce 9800 GTX+ is superior to the Radeon HD 6750 1GB, but only just. (explain)

GeForce 9800 GTX+		11808 Mpixels/sec
Radeon HD 6750 1GB		11600 Mpixels/sec
	Difference: 208 (2%)

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 maximum amount of data (counted in megabytes per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type memory, the result should be multiplied by 2 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed 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 graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.