GeForce 920M vs GeForce GTX 285 1GB

Intro

Compare those specs to the GeForce GTX 285 1GB, which features GPU clock speed of 648 MHz, and 1024 MB of GDDR3 RAM set to run at 1242 MHz through a 512-bit bus. It also is comprised of 240 SPUs, 80 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GTX 285 1GB should theoretically be much faster than the GeForce 920M overall. (explain)

GeForce GTX 285 1GB		158976 MB/sec
GeForce 920M		14400 MB/sec
	Difference: 144576 (1004%)

Texel Rate

The GeForce GTX 285 1GB will be much (about 70%) faster with regards to texture filtering than the GeForce 920M. (explain)

GeForce GTX 285 1GB		51840 Mtexels/sec
GeForce 920M		30528 Mtexels/sec
	Difference: 21312 (70%)

Pixel Rate

The GeForce GTX 285 1GB should be quite a bit (about 172%) better at AA than the GeForce 920M, and also should be able to handle higher screen resolutions better. (explain)

GeForce GTX 285 1GB		20736 Mpixels/sec
GeForce 920M		7632 Mpixels/sec
	Difference: 13104 (172%)

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 transferred past the external memory interface within a second. It is worked out by multiplying the bus width by its memory clock speed. In the case of DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.