GeForce GT 430 vs Radeon R9 M390X

Intro

Compare those specifications to the Radeon R9 M390X, which features GPU core speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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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

Performance-wise, the Radeon R9 M390X should theoretically be quite a bit better than the GeForce GT 430 in general. (explain)

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

Texel Rate

The Radeon R9 M390X should be much (approximately 726%) faster with regards to texture filtering 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 a lot (more or less 726%) faster with regards to FSAA than the GeForce GT 430, and will be capable of handling higher screen resolutions better. (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 max amount of information (in units of MB per second) that can be moved over the external memory interface in one second. It's worked out by multiplying the interface width by its memory speed. If the card has DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card can possibly record to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate is also dependant on lots of 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.