GeForce 9800 GT 1GB vs Radeon HD 6950 2GB

Intro

Compare those specs to the Radeon HD 6950 2GB, which comes with a core clock frequency of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also makes use of a 256-bit memory bus, and uses a 40 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 9800 GT 1GB		105 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 95 Watts (90%)

Memory Bandwidth

Theoretically speaking, the Radeon HD 6950 2GB should be much faster than the GeForce 9800 GT 1GB in general. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce 9800 GT 1GB		57600 MB/sec
	Difference: 102400 (178%)

Texel Rate

The Radeon HD 6950 2GB should be a lot (more or less 110%) faster with regards to AF than the GeForce 9800 GT 1GB. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce 9800 GT 1GB		33600 Mtexels/sec
	Difference: 36800 (110%)

Pixel Rate

The Radeon HD 6950 2GB should be much (about 167%) faster with regards to FSAA than the GeForce 9800 GT 1GB, and will be capable of handling higher resolutions better. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
GeForce 9800 GT 1GB		9600 Mpixels/sec
	Difference: 16000 (167%)

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 transported past the external memory interface in a second. The number is worked out by multiplying the card's interface width by the speed of its memory. If the card has DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card can possibly record to the local memory in a 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 - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.