GeForce 9800 GT 1GB vs Radeon HD 6750

Intro

Compare those specs to the Radeon HD 6750, which features a clock speed of 725 MHz and a GDDR5 memory frequency of 1000 MHz. It also uses a 128-bit bus, and makes use of a 40 nm design. It is made up of 720 SPUs, 36 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6750		86 Watts
GeForce 9800 GT 1GB		105 Watts
	Difference: 19 Watts (22%)

Memory Bandwidth

The Radeon HD 6750 should in theory perform a small bit faster than the GeForce 9800 GT 1GB in general. (explain)

Radeon HD 6750		64000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 6400 (11%)

Texel Rate

The GeForce 9800 GT 1GB will be much (approximately 29%) faster with regards to texture filtering than the Radeon HD 6750. (explain)

GeForce 9800 GT 1GB		33600 Mtexels/sec
Radeon HD 6750		26100 Mtexels/sec
	Difference: 7500 (29%)

Pixel Rate

The Radeon HD 6750 is a lot (more or less 21%) better at AA than the GeForce 9800 GT 1GB, and also capable of handling higher screen resolutions while still performing well. (explain)

Radeon HD 6750		11600 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 2000 (21%)

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 (in units of megabytes per second) that can be transported over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs 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 output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.