GeForce GT 430 vs GeForce GTX 980M

Intro

Compare all of that to the GeForce GTX 980M, which comes with a GPU core clock speed of 1038 MHz, and 4096 MB of GDDR5 memory set to run at 1000 MHz through a 256-bit bus. It also is made up of 1536 Stream Processors, 96 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
GeForce GTX 980M		100 Watts
	Difference: 40 Watts (67%)

Memory Bandwidth

Theoretically, the GeForce GTX 980M should perform quite a bit faster than the GeForce GT 430 overall. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The GeForce GTX 980M should be quite a bit (about 790%) faster with regards to anisotropic filtering than the GeForce GT 430. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 88448 (790%)

Pixel Rate

The GeForce GTX 980M should be much (approximately 2273%) better at full screen anti-aliasing than the GeForce GT 430, and should be capable of handling higher resolutions without slowing down too much. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 63632 (2273%)

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 information (measured in MB per second) that can be transferred across the external memory interface in one second. It's worked out by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of ROPs by the the core 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 output rate also depends on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.