GeForce GT 430 vs Radeon R9 M390X

Intro

Compare those specs to the Radeon R9 M390X, which has GPU clock speed of 723 MHz, and 4096 MB of GDDR5 memory set to run at 1250 MHz through a 256-bit bus. It also is comprised of 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon R9 M390X		125 Watts
	Difference: 65 Watts (108%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 M390X will be 456% quicker than the GeForce GT 430 overall, due to its greater bandwidth. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 131200 (456%)

Texel Rate

The Radeon R9 M390X will be much (about 726%) more effective at AF than the GeForce GT 430. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 81344 (726%)

Pixel Rate

The Radeon R9 M390X should be much (more or less 726%) more effective at FSAA than the GeForce GT 430, and also should be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 M390X		23136 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 20336 (726%)

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 largest amount of information (counted in MB per second) that can be transported over the external memory interface in one second. It's worked out by multiplying the card's bus width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher the card's memory bandwidth, the better 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 texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. 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 also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the max fill rate.