GeForce GT 450 (OEM) vs Radeon HD 6950

Intro

Compare those specs to the Radeon HD 6950, which makes use of a 40 nm design. AMD has clocked the core speed at 800 MHz. The GDDR5 RAM is set to run at a speed of 1250 MHz on this particular model. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

In theory, the Radeon HD 6950 will be 67% faster than the GeForce GT 450 (OEM) in general, because of its greater data rate. (explain)

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

Texel Rate

The Radeon HD 6950 will be quite a bit (more or less 271%) better at anisotropic filtering 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 will be a lot (approximately 35%) better at FSAA than the GeForce GT 450 (OEM), and will be able to handle higher screen resolutions while still performing well. (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 data (measured in megabytes per second) that can be transported across the external memory interface in one second. It's calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, the better the graphics 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 number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 memory bandwidth is, the lower the ability to get to the maximum fill rate.