GeForce GTS 150 vs GeForce GTX 560 Ti 448

Intro

Compare that to the GeForce GTX 560 Ti 448, which uses a 40 nm design. nVidia has clocked the core speed at 732 MHz. The GDDR5 memory works at a speed of 900 MHz on this particular card. It features 448 SPUs along with 56 TAUs and 40 Rasterization Operator Units.

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

Theoretically, the GeForce GTX 560 Ti 448 should perform a lot faster than the GeForce GTS 150 overall. (explain)

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

Texel Rate

The GeForce GTS 150 is a bit (approximately 16%) faster with regards to 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

If using a high screen resolution is important to you, then the GeForce GTX 560 Ti 448 is a better choice, and very much so. (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 information (counted in megabytes per second) that can be transported past the external memory interface within a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This number is calculated by multiplying the total number of texture units of the card by the core 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 amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 ability to reach the maximum fill rate.