GeForce GT 430 1GB vs GeForce GTX 980M

Intro

Compare those specifications to the GeForce GTX 980M, which features GPU core speed of 1038 MHz, and 4096 MB of GDDR5 RAM set to run at 1000 MHz through a 256-bit bus. It also is comprised of 1536 SPUs, 96 TAUs, and 64 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 980M		100 Watts
	Difference: 40 Watts (67%)

Memory Bandwidth

As far as performance goes, the GeForce GTX 980M should in theory be quite a bit superior to the GeForce GT 430 1GB in general. (explain)

GeForce GTX 980M		128000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 99200 (344%)

Texel Rate

The GeForce GTX 980M is quite a bit (approximately 790%) more effective at texture filtering than the GeForce GT 430 1GB. (explain)

GeForce GTX 980M		99648 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 88448 (790%)

Pixel Rate

The GeForce GTX 980M should be quite a bit (approximately 2273%) more effective at anti-aliasing than the GeForce GT 430 1GB, and also should be able to handle higher screen resolutions while still performing well. (explain)

GeForce GTX 980M		66432 Mpixels/sec
GeForce GT 430 1GB		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 data (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the bus width by its memory clock speed. In the case of DDR memory, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the max fill rate.