GeForce GTX 285 1GB vs GeForce GTX 650 Ti

Intro

Compare those specs to the GeForce GTX 650 Ti, which has clock speeds of 928 MHz on the GPU, and 1350 MHz on the 1024 MB of GDDR5 RAM. It features 768 SPUs as well as 64 TAUs 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 1GB		204 Watts
	Difference: 94 Watts (85%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 1GB should be 84% faster than the GeForce GTX 650 Ti overall, because of its higher data rate. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTX 650 Ti		86400 MB/sec
	Difference: 72576 (84%)

Texel Rate

The GeForce GTX 650 Ti should be a bit (approximately 15%) faster with regards to texture filtering than the GeForce GTX 285 1GB. (explain)

GeForce GTX 650 Ti		59392 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 7552 (15%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce GTX 285 1GB is superior to the GeForce GTX 650 Ti, and very much so. (explain)

GeForce GTX 285 1GB		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: Memory bandwidth is the largest amount of information (measured in megabytes per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's bus width by the speed of its memory. In the case of DDR type memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better this number, the better the video 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 number of pixels the video card could possibly record to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 fill rate is also dependant on lots of other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.