GeForce GTX 275 vs GeForce GTX 550 Ti

Intro

Compare all of that to the GeForce GTX 550 Ti, which has core speeds of 900 MHz on the GPU, and 1026 MHz on the 1024 MB of GDDR5 RAM. It features 192 SPUs along with 32 TAUs and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 550 Ti		116 Watts
GeForce GTX 275		219 Watts
	Difference: 103 Watts (89%)

Memory Bandwidth

Performance-wise, the GeForce GTX 275 should theoretically be quite a bit better than the GeForce GTX 550 Ti in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 550 Ti		98496 MB/sec
	Difference: 28512 (29%)

Texel Rate

The GeForce GTX 275 will be much (about 76%) better at anisotropic filtering than the GeForce GTX 550 Ti. (explain)

GeForce GTX 275		50640 Mtexels/sec
GeForce GTX 550 Ti		28800 Mtexels/sec
	Difference: 21840 (76%)

Pixel Rate

The GeForce GTX 550 Ti is quite a bit (about 22%) more effective at full screen anti-aliasing than the GeForce GTX 275, and also capable of handling higher screen resolutions while still performing well. (explain)

GeForce GTX 550 Ti		21600 Mpixels/sec
GeForce GTX 275		17724 Mpixels/sec
	Difference: 3876 (22%)

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 (counted in megabytes per second) that can be moved across the external memory interface within a second. The number is calculated by multiplying the card's bus width by its memory 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 AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This figure is calculated by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

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