GeForce GTX 275 vs GeForce GTX 650 Ti

Intro

Compare all that to the GeForce GTX 650 Ti, which uses a 28 nm design. nVidia has clocked the core speed at 928 MHz. The GDDR5 memory runs at a frequency of 1350 MHz on this particular card. It features 768 SPUs along with 64 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
GeForce GTX 275		219 Watts
	Difference: 109 Watts (99%)

Memory Bandwidth

In theory, the GeForce GTX 275 should perform a lot faster than the GeForce GTX 650 Ti in general. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 40608 (47%)

Texel Rate

The GeForce GTX 650 Ti is just a bit (about 17%) better at anisotropic filtering than the GeForce GTX 275. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 8752 (17%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce GTX 275 is a better choice, not by a very large margin though. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 2876 (19%)

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 (counted in megabytes per second) that can be transferred over the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR RAM, it must be multiplied by 2 again. If 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 higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs 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 fill rate is also dependant on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.