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 RAM works at a frequency of 1250 MHz on this specific card. It features 1408 SPUs along with 88 TAUs and 32 ROPs.

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

Theoretically speaking, the Radeon HD 6950 will be 67% faster than the GeForce GT 450 (OEM) overall, because of its greater bandwidth. (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%) more effective 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

If running with lots of anti-aliasing is important to you, then the Radeon HD 6950 is superior to the GeForce GT 450 (OEM), and very much so. (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: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the bus width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the 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 can be processed in one second. This is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.