GeForce GTX Titan X vs Radeon HD 6950 2GB

Intro

Compare that 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 memory. It features 1408 SPUs as well as 88 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 6950 2GB		200 Watts
GeForce GTX Titan X		250 Watts
	Difference: 50 Watts (25%)

Memory Bandwidth

As far as performance goes, the GeForce GTX Titan X should in theory be a lot better than the Radeon HD 6950 2GB overall. (explain)

GeForce GTX Titan X		336000 MB/sec
Radeon HD 6950 2GB		160000 MB/sec
	Difference: 176000 (110%)

Texel Rate

The GeForce GTX Titan X is much (about 173%) more effective at AF than the Radeon HD 6950 2GB. (explain)

GeForce GTX Titan X		192000 Mtexels/sec
Radeon HD 6950 2GB		70400 Mtexels/sec
	Difference: 121600 (173%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GTX Titan X is superior to the Radeon HD 6950 2GB, and very much so. (explain)

GeForce GTX Titan X		96000 Mpixels/sec
Radeon HD 6950 2GB		25600 Mpixels/sec
	Difference: 70400 (275%)

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 (measured in MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.