GeForce GTS 250 1GB vs GeForce GTX 560

Intro

Compare all of that to the GeForce GTX 560, which makes use of a 40 nm design. nVidia has clocked the core frequency at 810 MHz. The GDDR5 memory works at a speed of 1001 MHz on this model. It features 336 SPUs as well as 56 TAUs and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 1GB		145 Watts
GeForce GTX 560		150 Watts
	Difference: 5 Watts (3%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 should perform quite a bit faster than the GeForce GTS 250 1GB in general. (explain)

GeForce GTX 560		128128 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 57728 (82%)

Texel Rate

The GeForce GTS 250 1GB will be just a bit (approximately 4%) faster with regards to texture filtering than the GeForce GTX 560. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GTX 560		45360 Mtexels/sec
	Difference: 1872 (4%)

Pixel Rate

The GeForce GTX 560 is much (approximately 120%) better at FSAA than the GeForce GTS 250 1GB, and should be able to handle higher screen resolutions without slowing down too much. (explain)

GeForce GTX 560		25920 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 14112 (120%)

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 largest amount of data (counted in megabytes per second) that can be transferred past the external memory interface in one second. It's worked out by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 are applied in one second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better this number, the better the graphics 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 most pixels that the graphics chip could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Raster Operations Pipelines by the the core 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 many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.