GeForce GTX 285 2GB vs GeForce GTX 650 Ti

Intro

Compare that to the GeForce GTX 650 Ti, which uses a 28 nm design. nVidia has set the core frequency at 928 MHz. The GDDR5 RAM runs at a speed of 1350 MHz on this specific card. It features 768 SPUs along with 64 Texture Address Units and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 650 Ti		110 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 94 Watts (85%)

Memory Bandwidth

In theory, the GeForce GTX 285 2GB will be 84% faster than the GeForce GTX 650 Ti in general, due to its higher data rate. (explain)

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

Texel Rate

The GeForce GTX 650 Ti is just a bit (more or less 15%) faster with regards to anisotropic filtering than the GeForce GTX 285 2GB. (explain)

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

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 285 2GB is superior to the GeForce GTX 650 Ti, by far. (explain)

GeForce GTX 285 2GB		20736 Mpixels/sec
GeForce GTX 650 Ti		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: Bandwidth is the maximum amount of information (measured in MB per second) that can be transported across the external memory interface in one second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If 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 processed per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The better the texel rate, 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 that the graphics chip could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core speed of the card. 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 many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.