GeForce GT 430 1GB vs GeForce GTX 850M

Intro

Compare those specs to the GeForce GTX 850M, which comes with core speeds of 876 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 640 SPUs as well as 40 TAUs and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GTX 850M		40 Watts
GeForce GT 430 1GB		60 Watts
	Difference: 20 Watts (50%)

Memory Bandwidth

The GeForce GTX 850M, in theory, should be a little bit faster than the GeForce GT 430 1GB in general. (explain)

GeForce GTX 850M		32000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 3200 (11%)

Texel Rate

The GeForce GTX 850M should be a lot (more or less 213%) better at AF than the GeForce GT 430 1GB. (explain)

GeForce GTX 850M		35040 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 23840 (213%)

Pixel Rate

If running with lots of anti-aliasing is important to you, then the GeForce GTX 850M is the winner, by a large margin. (explain)

GeForce GTX 850M		14016 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 11216 (401%)

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: Memory bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported over the external memory interface in a second. The number is calculated by multiplying the card's interface width by its memory speed. If the card has DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is calculated by multiplying the number of Render Output Units 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 is also dependant on many other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.