GeForce GT 450 (OEM) vs Radeon HD 6970

Intro

Compare that to the Radeon HD 6970, which has core speeds of 880 MHz on the GPU, and 1375 MHz on the 2048 MB of GDDR5 RAM. It features 1536 SPUs along with 96 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 6970		250 Watts
	Difference: 144 Watts (136%)

Memory Bandwidth

The Radeon HD 6970 should theoretically perform quite a bit faster than the GeForce GT 450 (OEM) in general. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GT 450 (OEM)		96000 MB/sec
	Difference: 80000 (83%)

Texel Rate

The Radeon HD 6970 will be much (about 346%) more effective at texture filtering than the GeForce GT 450 (OEM). (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GT 450 (OEM)		18960 Mtexels/sec
	Difference: 65520 (346%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon HD 6970 is superior to the GeForce GT 450 (OEM), by far. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GT 450 (OEM)		18960 Mpixels/sec
	Difference: 9200 (49%)

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 MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 can be processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core clock 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 that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of 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 is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.