GeForce GT 430 1GB vs GeForce GTX 870M

Intro

Compare those specs to the GeForce GTX 870M, which features GPU clock speed of 941 MHz, and 3072 MB of GDDR5 RAM set to run at 1000 MHz through a 192-bit bus. It also features 1344 Stream Processors, 112 TAUs, and 24 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430 1GB		60 Watts
GeForce GTX 870M		110 Watts
	Difference: 50 Watts (83%)

Memory Bandwidth

Performance-wise, the GeForce GTX 870M should in theory be a lot better than the GeForce GT 430 1GB in general. (explain)

GeForce GTX 870M		96000 MB/sec
GeForce GT 430 1GB		28800 MB/sec
	Difference: 67200 (233%)

Texel Rate

The GeForce GTX 870M should be a lot (about 841%) more effective at AF than the GeForce GT 430 1GB. (explain)

GeForce GTX 870M		105392 Mtexels/sec
GeForce GT 430 1GB		11200 Mtexels/sec
	Difference: 94192 (841%)

Pixel Rate

The GeForce GTX 870M should be much (approximately 707%) faster with regards to anti-aliasing than the GeForce GT 430 1GB, and also should be capable of handling higher screen resolutions without slowing down too much. (explain)

GeForce GTX 870M		22584 Mpixels/sec
GeForce GT 430 1GB		2800 Mpixels/sec
	Difference: 19784 (707%)

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 information (counted in MB per second) that can be moved across the external memory interface in one second. The number is calculated by multiplying the card's interface width by its memory speed. In the case of DDR memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that 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 number of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.