GeForce GT 320 vs Radeon RX 460 2GB

Intro

Compare that to the Radeon RX 460 2GB, which has clock speeds of 1090 MHz on the GPU, and 1750 MHz on the 2048 MB of GDDR5 memory. It features 896 SPUs as well as 56 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 320		43 Watts
Radeon RX 460 2GB		75 Watts
	Difference: 32 Watts (74%)

Memory Bandwidth

In theory, the Radeon RX 460 2GB will be 343% faster than the GeForce GT 320 overall, due to its higher bandwidth. (explain)

Radeon RX 460 2GB		112000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 86720 (343%)

Texel Rate

The Radeon RX 460 2GB is much (approximately 371%) better at AF than the GeForce GT 320. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 48080 (371%)

Pixel Rate

The Radeon RX 460 2GB will be quite a bit (more or less 304%) more effective at AA than the GeForce GT 320, and should be capable of handling higher resolutions better. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 13120 (304%)

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 max amount of information (counted in megabytes per second) that can be moved past the external memory interface in one second. It's worked out by multiplying the interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR 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 of the card by the core speed of the chip. The better this number, 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 maximum amount of pixels the video card could possibly record to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of 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.