GeForce GTS 250 512MB vs GeForce GTX 560 Ti 448

Intro

Compare all of that to the GeForce GTX 560 Ti 448, which features a clock frequency of 732 MHz and a GDDR5 memory speed of 900 MHz. It also uses a 320-bit bus, and makes use of a 40 nm design. It features 448 SPUs, 56 Texture Address Units, and 40 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 250 512MB		145 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 65 Watts (45%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 560 Ti 448 is 105% quicker than the GeForce GTS 250 512MB overall, because of its higher data rate. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTS 250 512MB		70400 MB/sec
	Difference: 73600 (105%)

Texel Rate

The GeForce GTS 250 512MB is a small bit (about 15%) better at AF than the GeForce GTX 560 Ti 448. (explain)

GeForce GTS 250 512MB		47232 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 6240 (15%)

Pixel Rate

The GeForce GTX 560 Ti 448 is a lot (approximately 148%) more effective at FSAA than the GeForce GTS 250 512MB, and will be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTS 250 512MB		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: Memory bandwidth is the maximum amount of data (in units of megabytes per second) that can be transported past the external memory interface in one second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. The figure is calculated 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 output rate also depends 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.