GeForce 830M vs GeForce GTX 570

Intro

Compare all that to the GeForce GTX 570, which comes with a clock frequency of 732 MHz and a GDDR5 memory speed of 950 MHz. It also makes use of a 320-bit bus, and makes use of a 40 nm design. It features 480 SPUs, 60 Texture Address Units, and 40 Raster Operation 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

As far as performance goes, the GeForce GTX 570 should in theory be quite a bit better than the GeForce 830M overall. (explain)

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

Texel Rate

The GeForce GTX 570 should be a lot (approximately 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 should be quite a bit (more or less 256%) more effective at full screen anti-aliasing than the GeForce 830M, and also able to handle higher screen resolutions without losing too much performance. (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 maximum amount of data (in units of MB per second) that can be moved over the external memory interface in one second. The number is calculated by multiplying the interface width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the memory bandwidth, the better 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 processed per second. This number is worked out by multiplying the total texture units of the card 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 in one second.

Pixel Rate: Pixel rate is the most pixels that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.