GeForce GT 450 (OEM) vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which uses a 40 nm design. AMD has set the core frequency at 800 MHz. The GDDR5 memory runs at a frequency of 1250 MHz on this model. It features 1408 SPUs as well as 88 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 450 (OEM)		106 Watts
Radeon HD 6950		200 Watts
	Difference: 94 Watts (89%)

Memory Bandwidth

As far as performance goes, the Radeon HD 6950 should in theory be quite a bit superior to the GeForce GT 450 (OEM) overall. (explain)

Radeon HD 6950		160000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 64000 (67%)

Texel Rate

The Radeon HD 6950 should be a lot (more or less 271%) better at AF than the GeForce GT 450 (OEM). (explain)

Radeon HD 6950		70400 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 51440 (271%)

Pixel Rate

The Radeon HD 6950 should be much (about 35%) better at full screen anti-aliasing than the GeForce GT 450 (OEM), and also will be capable of handling higher screen resolutions without slowing down too much. (explain)

Radeon HD 6950		25600 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 6640 (35%)

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 largest amount of information (counted in MB per second) that can be moved past the external memory interface in one second. It is worked out by multiplying the card's interface width by the speed of its memory. If it uses DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on lots of 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.