GeForce GTX 285 2GB vs GeForce GTX 650 Ti 2GB

Intro

Compare those specifications to the GeForce GTX 650 Ti 2GB, which features a GPU core clock speed of 928 MHz, and 2048 MB of GDDR5 RAM set to run at 1350 MHz through a 128-bit bus. It also is made up of 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 285 2GB		204 Watts
	Difference: 94 Watts (85%)

Memory Bandwidth

The GeForce GTX 285 2GB should in theory be quite a bit faster than the GeForce GTX 650 Ti 2GB in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 650 Ti 2GB		86400 MB/sec
	Difference: 72576 (84%)

Texel Rate

The GeForce GTX 650 Ti 2GB is a little bit (more or less 15%) better at anisotropic filtering than the GeForce GTX 285 2GB. (explain)

GeForce GTX 650 Ti 2GB		59392 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 7552 (15%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the GeForce GTX 285 2GB is a better choice, by a large margin. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce GTX 650 Ti 2GB		14848 Mpixels/sec
	Difference: 5888 (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: Memory bandwidth is the max amount of data (in units of MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by its memory clock speed. If it uses DDR memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

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

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