GeForce GTS 250 1GB vs GeForce GTX 560 Ti

Intro

Compare those specifications to the GeForce GTX 560 Ti, which uses a 40 nm design. nVidia has set the core speed at 822 MHz. The GDDR5 RAM is set to run at a speed of 1002 MHz on this specific model. It features 384 SPUs as well as 64 TAUs and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 1GB		145 Watts
GeForce GTX 560 Ti		170 Watts
	Difference: 25 Watts (17%)

Memory Bandwidth

In theory, the GeForce GTX 560 Ti will be 82% quicker than the GeForce GTS 250 1GB in general, because of its greater data rate. (explain)

GeForce GTX 560 Ti		128256 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 57856 (82%)

Texel Rate

The GeForce GTX 560 Ti will be a little bit (more or less 11%) faster with regards to texture filtering than the GeForce GTS 250 1GB. (explain)

GeForce GTX 560 Ti		52608 Mtexels/sec
GeForce GTS 250 1GB		47232 Mtexels/sec
	Difference: 5376 (11%)

Pixel Rate

The GeForce GTX 560 Ti is a lot (about 123%) faster with regards to full screen anti-aliasing than the GeForce GTS 250 1GB, and also should be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti		26304 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 14496 (123%)

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: Memory bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This number is calculated by multiplying the total texture units by the core clock 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 applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on 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 bandwidth is, the lower the ability to reach the maximum fill rate.