GeForce GTX 285 2GB vs GeForce GTX 970M

Intro

Compare that to the GeForce GTX 970M, which makes use of a 28 nm design. nVidia has clocked the core frequency at 924 MHz. The GDDR5 RAM runs at a frequency of 1000 MHz on this model. It features 1280 SPUs as well as 80 TAUs and 48 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970M		75 Watts
GeForce GTX 285 2GB		204 Watts
	Difference: 129 Watts (172%)

Memory Bandwidth

The GeForce GTX 285 2GB should theoretically be quite a bit faster than the GeForce GTX 970M in general. (explain)

GeForce GTX 285 2GB		158976 MB/sec
GeForce GTX 970M		96000 MB/sec
	Difference: 62976 (66%)

Texel Rate

The GeForce GTX 970M should be quite a bit (about 43%) better at texture filtering than the GeForce GTX 285 2GB. (explain)

GeForce GTX 970M		73920 Mtexels/sec
GeForce GTX 285 2GB		51840 Mtexels/sec
	Difference: 22080 (43%)

Pixel Rate

The GeForce GTX 970M is much (approximately 114%) more effective at FSAA than the GeForce GTX 285 2GB, and also able to handle higher screen resolutions more effectively. (explain)

GeForce GTX 970M		44352 Mpixels/sec
GeForce GTX 285 2GB		20736 Mpixels/sec
	Difference: 23616 (114%)

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 data (measured in megabytes per second) that can be transferred over the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The higher 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 video card can possibly write to the local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.