GeForce 830M vs GeForce GTX 280

Intro

Compare that to the GeForce GTX 280, which features GPU core speed of 602 MHz, and 1024 MB of GDDR3 RAM set to run at 1107 MHz through a 512-bit bus. It also is comprised of 240 Stream Processors, 80 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GTX 280		236 Watts
	Difference: 211 Watts (844%)

Memory Bandwidth

Theoretically speaking, the GeForce GTX 280 should be 884% quicker than the GeForce 830M overall, due to its higher bandwidth. (explain)

GeForce GTX 280		141696 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 127296 (884%)

Texel Rate

The GeForce GTX 280 should be a lot (more or less 193%) faster with regards to AF than the GeForce 830M. (explain)

GeForce GTX 280		48160 Mtexels/sec
GeForce 830M		16464 Mtexels/sec
	Difference: 31696 (193%)

Pixel Rate

The GeForce GTX 280 is quite a bit (more or less 134%) more effective at AA than the GeForce 830M, and also should be capable of handling higher resolutions better. (explain)

GeForce GTX 280		19264 Mpixels/sec
GeForce 830M		8232 Mpixels/sec
	Difference: 11032 (134%)

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 max amount of data (in units of MB per second) that can be transported over the external memory interface within a second. It is calculated by multiplying the card's bus width by the speed of its memory. In the case of 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 better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, the better the card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to its local memory per second - measured in millions of pixels per second. The figure is worked out by multiplying the amount 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 rate is also dependant on lots of other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.