GeForce GT 320 vs Radeon R9 M385X

Intro

Compare those specs to the Radeon R9 M385X, which features core clock speeds of 1100 MHz on the GPU, and 1500 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs along with 56 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Theoretically speaking, the Radeon R9 M385X should perform a lot faster than the GeForce GT 320 in general. (explain)

Radeon R9 M385X		96000 MB/sec
GeForce GT 320		25280 MB/sec
	Difference: 70720 (280%)

Texel Rate

The Radeon R9 M385X is quite a bit (about 375%) better at anisotropic filtering than the GeForce GT 320. (explain)

Radeon R9 M385X		61600 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 48640 (375%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R9 M385X is the winner, by far. (explain)

Radeon R9 M385X		17600 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 13280 (307%)

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 maximum amount of data (measured in megabytes per second) that can be moved past the external memory interface in a second. The number is calculated by multiplying the bus width by the speed of its memory. If the card has DDR memory, the result should be multiplied by 2 once again. If 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total amount of texture units by the core speed of the chip. The higher this number, 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 most pixels that the graphics chip could possibly write to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of Render Output Units 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 many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the max fill rate.