GeForce GT 440 1.5GB vs Radeon HD 6950 2GB

Intro

Compare those specs to the Radeon HD 6950 2GB, which has clock speeds of 800 MHz on the GPU, and 1250 MHz on the 2048 MB of GDDR5 RAM. It features 1408 SPUs along with 88 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 144 Watts (257%)

Memory Bandwidth

Performance-wise, the Radeon HD 6950 2GB should theoretically be a lot superior to the GeForce GT 440 1.5GB overall. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 116800 (270%)

Texel Rate

The Radeon HD 6950 2GB should be a lot (about 394%) better at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 56144 (394%)

Pixel Rate

The Radeon HD 6950 2GB is a lot (approximately 80%) faster with regards to anti-aliasing than the GeForce GT 440 1.5GB, and capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 11344 (80%)

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 information (in units of MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's 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 amount of texture map elements (texels) that are processed in one second. This is worked out by multiplying the total texture units of the card by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory in a 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 - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the max fill rate.