GeForce 830M vs GeForce GT 430

Intro

Compare those specs to the GeForce GT 430, which features clock speeds of 700 MHz on the GPU, and 900 MHz on the 512 MB of GDDR3 RAM. It features 96 SPUs along with 16 TAUs and 4 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce 830M		25 Watts
GeForce GT 430		60 Watts
	Difference: 35 Watts (140%)

Memory Bandwidth

As far as performance goes, the GeForce GT 430 should in theory be much better than the GeForce 830M overall. (explain)

GeForce GT 430		28800 MB/sec
GeForce 830M		14400 MB/sec
	Difference: 14400 (100%)

Texel Rate

The GeForce 830M is a lot (approximately 47%) better at AF than the GeForce GT 430. (explain)

GeForce 830M		16464 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 5264 (47%)

Pixel Rate

The GeForce 830M should be quite a bit (about 194%) more effective at FSAA than the GeForce GT 430, and will be able to handle higher screen resolutions while still performing well. (explain)

GeForce 830M		8232 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 5432 (194%)

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 (counted in MB per second) that can be transferred over the external memory interface in one second. It is worked out by multiplying the interface width by the speed of its memory. In the case of DDR RAM, it should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better 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 is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of colour 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 many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.