GeForce GTX 295 vs GeForce GTX 780 Ti

Intro

Compare all that to the GeForce GTX 780 Ti, which features clock speeds of 875 MHz on the GPU, and 1750 MHz on the 3072 MB of GDDR5 RAM. It features 2880 SPUs as well as 240 TAUs and 48 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 780 Ti		250 Watts
GeForce GTX 295		289 Watts
	Difference: 39 Watts (16%)

Memory Bandwidth

Performance-wise, the GeForce GTX 780 Ti should in theory be quite a bit better than the GeForce GTX 295 overall. (explain)

GeForce GTX 780 Ti		336000 MB/sec
GeForce GTX 295		223776 MB/sec
	Difference: 112224 (50%)

Texel Rate

The GeForce GTX 780 Ti is much (approximately 128%) more effective at AF than the GeForce GTX 295. (explain)

GeForce GTX 780 Ti		210000 Mtexels/sec
GeForce GTX 295		92160 Mtexels/sec
	Difference: 117840 (128%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 780 Ti is a better choice, by a large margin. (explain)

GeForce GTX 780 Ti		42000 Mpixels/sec
GeForce GTX 295		32256 Mpixels/sec
	Difference: 9744 (30%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the largest amount of data (counted in MB per second) that can be moved over the external memory interface in one second. It is calculated by multiplying the bus width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the video card will be at handling 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 the video card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few 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.