GeForce GT 320 vs Radeon R9 380X

Intro

Compare those specifications to the Radeon R9 380X, which features clock speeds of 970 MHz on the GPU, and 1425 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs along with 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon R9 380X		190 Watts
	Difference: 147 Watts (342%)

Memory Bandwidth

In theory, the Radeon R9 380X should perform much faster than the GeForce GT 320 in general. (explain)

Radeon R9 380X		182400 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 157120 (622%)

Texel Rate

The Radeon R9 380X will be quite a bit (about 858%) better at anisotropic filtering than the GeForce GT 320. (explain)

Radeon R9 380X		124160 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 111200 (858%)

Pixel Rate

The Radeon R9 380X should be much (more or less 619%) more effective at AA than the GeForce GT 320, and also able to handle higher resolutions more effectively. (explain)

Radeon R9 380X		31040 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 26720 (619%)

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 information (measured in megabytes per second) that can be transported past the external memory interface in a second. It is calculated by multiplying the card's bus width by the speed of its memory. 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 better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the 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 number of pixels the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.