GeForce GTX 295 vs GeForce GTX 780 Ti

Intro

Compare that to the GeForce GTX 780 Ti, which comes with a GPU core clock speed of 875 MHz, and 3072 MB of GDDR5 RAM running at 1750 MHz through a 384-bit bus. It also features 2880 SPUs, 240 TAUs, and 48 Raster Operation Units.

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 theoretically be a lot better than the GeForce GTX 295 in general. (explain)

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

Texel Rate

The GeForce GTX 780 Ti should be quite a bit (more or less 128%) more effective at anisotropic filtering 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 a high resolution is important to you, then the GeForce GTX 780 Ti is the winner, by far. (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: Bandwidth is the largest amount of data (measured in MB per second) that can be moved past the external memory interface within a second. It is worked out by multiplying the interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If 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, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.