GeForce GTX 285 1GB vs GeForce GTX 660 Ti

Intro

Compare those specifications to the GeForce GTX 660 Ti, which makes use of a 28 nm design. nVidia has clocked the core frequency at 915 MHz. The GDDR5 memory runs at a speed of 1500 MHz on this specific model. It features 1344 SPUs along with 112 Texture Address Units and 24 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 660 Ti		150 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 54 Watts (36%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 285 1GB should be a small bit faster than the GeForce GTX 660 Ti overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce GTX 660 Ti		144000 MB/sec
	Difference: 14976 (10%)

Texel Rate

The GeForce GTX 660 Ti should be quite a bit (approximately 98%) faster with regards to AF than the GeForce GTX 285 1GB. (explain)

GeForce GTX 660 Ti		102480 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 50640 (98%)

Pixel Rate

The GeForce GTX 660 Ti will be just a bit (about 6%) better at AA than the GeForce GTX 285 1GB, and also should be able to handle higher resolutions without losing too much performance. (explain)

GeForce GTX 660 Ti		21960 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 1224 (6%)

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 maximum amount of data (counted in MB per second) that can be moved across the external memory interface in a second. It's calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, 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 number of texture map elements (texels) that are processed per 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly record to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on many other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.