GeForce GTX 275 vs GeForce GTX 650 Ti 2GB

Intro

Compare those specs to the GeForce GTX 650 Ti 2GB, which features a clock speed of 928 MHz and a GDDR5 memory frequency of 1350 MHz. It also uses a 128-bit memory bus, and uses a 28 nm design. It is made up of 768 SPUs, 64 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTX 275		219 Watts
	Difference: 109 Watts (99%)

Memory Bandwidth

Performance-wise, the GeForce GTX 275 should theoretically be quite a bit superior to the GeForce GTX 650 Ti 2GB overall. (explain)

GeForce GTX 275		127008 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 40608 (47%)

Texel Rate

The GeForce GTX 650 Ti 2GB is just a bit (about 17%) better at anisotropic filtering than the GeForce GTX 275. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 275		50640 Mtexels/sec
	Difference: 8752 (17%)

Pixel Rate

The GeForce GTX 275 should be a small bit (more or less 19%) more effective at anti-aliasing than the GeForce GTX 650 Ti 2GB, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce GTX 275		17724 Mpixels/sec
GeForce GTX 650 Ti 2GB		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: Memory bandwidth is the maximum amount of information (measured in megabytes per second) that can be transferred across the external memory interface within a second. The number is calculated by multiplying the card's bus width by the speed of its memory. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly record to the local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Render Output Units by the the core clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.