GeForce GTX 295 vs GeForce GTX 570

Intro

Compare those specifications to the GeForce GTX 570, which uses a 40 nm design. nVidia has set the core speed at 732 MHz. The GDDR5 memory is set to run at a speed of 950 MHz on this particular model. It features 480 SPUs along with 60 TAUs and 40 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 570		219 Watts
GeForce GTX 295		289 Watts
	Difference: 70 Watts (32%)

Memory Bandwidth

The GeForce GTX 295 should theoretically perform much faster than the GeForce GTX 570 in general. (explain)

GeForce GTX 295		223776 MB/sec
GeForce GTX 570		152000 MB/sec
	Difference: 71776 (47%)

Texel Rate

The GeForce GTX 295 will be quite a bit (about 110%) faster with regards to AF than the GeForce GTX 570. (explain)

GeForce GTX 295		92160 Mtexels/sec
GeForce GTX 570		43920 Mtexels/sec
	Difference: 48240 (110%)

Pixel Rate

The GeForce GTX 295 is a small bit (approximately 10%) faster with regards to full screen anti-aliasing than the GeForce GTX 570, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 295		32256 Mpixels/sec
GeForce GTX 570		29280 Mpixels/sec
	Difference: 2976 (10%)

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 maximum amount of data (counted in MB per second) that can be transferred past the external memory interface within a second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the 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 texture map elements (texels) that can be 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 higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

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