GeForce 830M vs GeForce GTX 570

Intro

Compare those specs to the GeForce GTX 570, which has core speeds of 732 MHz on the GPU, and 950 MHz on the 1280 MB of GDDR5 RAM. It features 480 SPUs as well as 60 TAUs and 40 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 570		219 Watts
	Difference: 194 Watts (776%)

Memory Bandwidth

In theory, the GeForce GTX 570 should perform a lot faster than the GeForce 830M in general. (explain)

GeForce GTX 570		152000 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 137600 (956%)

Texel Rate

The GeForce GTX 570 will be much (about 167%) faster with regards to anisotropic filtering than the GeForce 830M. (explain)

GeForce GTX 570		43920 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 27456 (167%)

Pixel Rate

The GeForce GTX 570 is a lot (about 256%) faster with regards to AA than the GeForce 830M, and also will be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 570		29280 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 21048 (256%)

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: Bandwidth is the largest amount of information (in units of megabytes per second) that can be transferred across the external memory interface in one second. It's calculated by multiplying the card's bus width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied in one second. This figure is worked out by multiplying the total texture units by the core clock speed of the chip. The better the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a 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. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output 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 maximum fill rate.