GeForce GTS 250 1GB vs GeForce GTX 560 Ti 448

Intro

Compare those specs to the GeForce GTX 560 Ti 448, which has a core clock speed of 732 MHz and a GDDR5 memory frequency of 900 MHz. It also makes use of a 320-bit bus, and makes use of a 40 nm design. It is made up of 448 SPUs, 56 TAUs, and 40 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 448		210 Watts
	Difference: 65 Watts (45%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should in theory be a lot superior to the GeForce GTS 250 1GB overall. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTS 250 1GB		70400 MB/sec
	Difference: 73600 (105%)

Texel Rate

The GeForce GTS 250 1GB should be a little bit (approximately 15%) better at anisotropic filtering than the GeForce GTX 560 Ti 448. (explain)

GeForce GTS 250 1GB		47232 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 6240 (15%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, by far. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTS 250 1GB		11808 Mpixels/sec
	Difference: 17472 (148%)

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 max amount of information (counted in megabytes per second) that can be transported across the external memory interface in a second. It's calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, 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 most pixels that the graphics chip could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock 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 output rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.