GeForce GT 430 vs Radeon R9 380 4G

Intro

Compare those specifications to the Radeon R9 380 4G, which has GPU core speed of 970 MHz, and 4096 MB of GDDR5 RAM set to run at 1425 MHz through a 256-bit bus. It also features 1792 SPUs, 112 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 430		60 Watts
Radeon R9 380 4G		190 Watts
	Difference: 130 Watts (217%)

Memory Bandwidth

The Radeon R9 380 4G should theoretically be quite a bit faster than the GeForce GT 430 in general. (explain)

Radeon R9 380 4G		182400 MB/sec
GeForce GT 430		28800 MB/sec
	Difference: 153600 (533%)

Texel Rate

The Radeon R9 380 4G should be a lot (about 870%) more effective at texture filtering than the GeForce GT 430. (explain)

Radeon R9 380 4G		108640 Mtexels/sec
GeForce GT 430		11200 Mtexels/sec
	Difference: 97440 (870%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 380 4G is a better choice, by a large margin. (explain)

Radeon R9 380 4G		31040 Mpixels/sec
GeForce GT 430		2800 Mpixels/sec
	Difference: 28240 (1009%)

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 (counted in MB per second) that can be transferred across the external memory interface in a second. The number is calculated by multiplying the interface width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. 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 amount of texture map elements (texels) that can be processed in one second. This number is calculated by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the 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 the graphics card could possibly record to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.