GeForce GTX 650 Ti 2GB vs Radeon HD 6970

Intro

Compare those specs to the Radeon HD 6970, which features a core clock speed of 880 MHz and a GDDR5 memory speed of 1375 MHz. It also uses a 256-bit bus, and uses a 40 nm design. It is comprised of 1536 SPUs, 96 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
Radeon HD 6970		250 Watts
	Difference: 140 Watts (127%)

Memory Bandwidth

Performance-wise, the Radeon HD 6970 should theoretically be quite a bit superior to the GeForce GTX 650 Ti 2GB overall. (explain)

Radeon HD 6970		176000 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 89600 (104%)

Texel Rate

The Radeon HD 6970 should be quite a bit (more or less 42%) better at texture filtering than the GeForce GTX 650 Ti 2GB. (explain)

Radeon HD 6970		84480 Mtexels/sec
GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
	Difference: 25088 (42%)

Pixel Rate

The Radeon HD 6970 should be quite a bit (more or less 90%) more effective at AA than the GeForce GTX 650 Ti 2GB, and also should be able to handle higher resolutions without slowing down too much. (explain)

Radeon HD 6970		28160 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 13312 (90%)

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 data (measured in MB per second) that can be transferred past the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR memory, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, 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 are applied in one second. This figure is calculated by multiplying the total number of texture units of the card by the core speed of the chip. The better this number, the better the video 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 the video card could possibly write to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.