GeForce GTX 285 1GB vs GeForce GTX 970

Intro

Compare those specs to the GeForce GTX 970, which comes with a clock speed of 1050 MHz and a GDDR5 memory speed of 1750 MHz. It also makes use of a 256-bit bus, and uses a 28 nm design. It is made up of 1664 SPUs, 104 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 970		145 Watts
GeForce GTX 285 1GB		204 Watts
	Difference: 59 Watts (41%)

Memory Bandwidth

The GeForce GTX 970 should theoretically be much faster than the GeForce GTX 285 1GB in general. (explain)

GeForce GTX 970		224000 MB/sec
GeForce GTX 285 1GB		158976 MB/sec
	Difference: 65024 (41%)

Texel Rate

The GeForce GTX 970 is a lot (about 111%) better at anisotropic filtering than the GeForce GTX 285 1GB. (explain)

GeForce GTX 970		109200 Mtexels/sec
GeForce GTX 285 1GB		51840 Mtexels/sec
	Difference: 57360 (111%)

Pixel Rate

The GeForce GTX 970 will be a lot (about 224%) more effective at anti-aliasing than the GeForce GTX 285 1GB, and also should be able to handle higher resolutions more effectively. (explain)

GeForce GTX 970		67200 Mpixels/sec
GeForce GTX 285 1GB		20736 Mpixels/sec
	Difference: 46464 (224%)

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 (measured in megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's bus width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, 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 amount of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.