GeForce GTX 460 1GB vs GeForce GTX 650 Ti 2GB

Intro

Compare all of that to the GeForce GTX 650 Ti 2GB, which features GPU clock speed of 928 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also features 768 SPUs, 64 TAUs, and 16 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti 2GB		110 Watts
GeForce GTX 460 1GB		160 Watts
	Difference: 50 Watts (45%)

Memory Bandwidth

The GeForce GTX 460 1GB should theoretically perform much faster than the GeForce GTX 650 Ti 2GB in general. (explain)

GeForce GTX 460 1GB		115200 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 28800 (33%)

Texel Rate

The GeForce GTX 650 Ti 2GB will be a lot (about 57%) faster with regards to texture filtering than the GeForce GTX 460 1GB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 460 1GB		37800 Mtexels/sec
	Difference: 21592 (57%)

Pixel Rate

The GeForce GTX 460 1GB will be quite a bit (approximately 45%) better at AA than the GeForce GTX 650 Ti 2GB, and also should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 460 1GB		21600 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 6752 (45%)

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 largest amount of information (measured in megabytes per second) that can be transferred over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, 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 AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This is calculated by multiplying the total amount 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 applied in one second.

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