GeForce GTX 650 Ti vs Radeon HD 6950 2GB

Intro

Compare that to the Radeon HD 6950 2GB, which features a clock speed of 800 MHz and a GDDR5 memory speed of 1250 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is comprised of 1408 SPUs, 88 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
Radeon HD 6950 2GB		200 Watts
	Difference: 90 Watts (82%)

Memory Bandwidth

The Radeon HD 6950 2GB should theoretically be quite a bit faster than the GeForce GTX 650 Ti overall. (explain)

Radeon HD 6950 2GB		160000 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 73600 (85%)

Texel Rate

The Radeon HD 6950 2GB is a small bit (approximately 19%) better at AF than the GeForce GTX 650 Ti. (explain)

Radeon HD 6950 2GB		70400 Mtexels/sec
GeForce GTX 650 Ti		59392 Mtexels/sec
	Difference: 11008 (19%)

Pixel Rate

If running with high levels of AA is important to you, then the Radeon HD 6950 2GB is a better choice, by far. (explain)

Radeon HD 6950 2GB		25600 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 10752 (72%)

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 (in units of megabytes per second) that can be transferred across the external memory interface in a second. The number is worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This figure is calculated by multiplying the total texture units by the core speed of the chip. The better this number, the better the graphics card will be at 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 card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.