GeForce GTX 460 SE vs GeForce GTX 650 Ti

Intro

Compare all that to the GeForce GTX 650 Ti, which comes with a core clock frequency of 928 MHz and a GDDR5 memory speed of 1350 MHz. It also makes use of a 128-bit memory bus, and makes use of a 28 nm design. It features 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		110 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 40 Watts (36%)

Memory Bandwidth

The GeForce GTX 460 SE should in theory be quite a bit faster than the GeForce GTX 650 Ti in general. (explain)

GeForce GTX 460 SE		108800 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 22400 (26%)

Texel Rate

The GeForce GTX 650 Ti should be quite a bit (approximately 90%) better at texture filtering than the GeForce GTX 460 SE. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GTX 460 SE		31200 Mtexels/sec
	Difference: 28192 (90%)

Pixel Rate

The GeForce GTX 460 SE is much (more or less 40%) more effective at anti-aliasing than the GeForce GTX 650 Ti, and also capable of handling higher resolutions without losing too much performance. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
GeForce GTX 650 Ti		14848 Mpixels/sec
	Difference: 5952 (40%)

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 maximum amount of data (measured in megabytes per second) that can be transferred over the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If the card has DDR RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.