GeForce GT 430 vs Radeon R9 390X 8G

Intro

Compare all that to the Radeon R9 390X 8G, which features a GPU core clock speed of 1050 MHz, and 8192 MB of GDDR5 memory set to run at 1500 MHz through a 512-bit bus. It also is made up of 2816 SPUs, 176 TAUs, and 64 Raster Operation Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 215 Watts (358%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G is 1233% quicker than the GeForce GT 430 in general, because of its higher bandwidth. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 355200 (1233%)

Texel Rate

The Radeon R9 390X 8G is much (approximately 1550%) better at anisotropic filtering than the GeForce GT 430. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 173600 (1550%)

Pixel Rate

The Radeon R9 390X 8G is quite a bit (about 2300%) more effective at AA than the GeForce GT 430, and able to handle higher resolutions more effectively. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 64400 (2300%)

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 largest amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied per second. This number is worked out 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 card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the max fill rate.