GeForce GTS 150 vs GeForce GTX 560 Ti 448

Intro

Compare those specs to the GeForce GTX 560 Ti 448, which uses a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 RAM is set to run at a speed of 900 MHz on this particular model. It features 448 SPUs as well as 56 TAUs and 40 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTS 150		141 Watts
GeForce GTX 560 Ti 448		210 Watts
	Difference: 69 Watts (49%)

Memory Bandwidth

Performance-wise, the GeForce GTX 560 Ti 448 should in theory be quite a bit better than the GeForce GTS 150 in general. (explain)

GeForce GTX 560 Ti 448		144000 MB/sec
GeForce GTS 150		32000 MB/sec
	Difference: 112000 (350%)

Texel Rate

The GeForce GTS 150 should be just a bit (more or less 16%) better at AF than the GeForce GTX 560 Ti 448. (explain)

GeForce GTS 150		47360 Mtexels/sec
GeForce GTX 560 Ti 448		40992 Mtexels/sec
	Difference: 6368 (16%)

Pixel Rate

The GeForce GTX 560 Ti 448 will be quite a bit (approximately 147%) better at anti-aliasing than the GeForce GTS 150, and will be able to handle higher resolutions without slowing down too much. (explain)

GeForce GTX 560 Ti 448		29280 Mpixels/sec
GeForce GTS 150		11840 Mpixels/sec
	Difference: 17440 (147%)

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 data (in units of megabytes per second) that can be moved across the external memory interface in a second. It's worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, it must be multiplied by 2 once 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 anti-aliasing, 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 worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in one second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.