GeForce GT 320 vs Radeon R5 M255

Intro

Compare that to the Radeon R5 M255, which features core clock speeds of 940 MHz on the GPU, and 1000 MHz on the 2048 MB of DDR3 RAM. It features 320 SPUs along with 20 TAUs and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

As far as performance goes, the GeForce GT 320 should theoretically be a lot superior to the Radeon R5 M255 in general. (explain)

GeForce GT 320		25280 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 9280 (58%)

Texel Rate

The Radeon R5 M255 is much (approximately 45%) faster with regards to anisotropic filtering than the GeForce GT 320. (explain)

Radeon R5 M255		18800 Mtexels/sec
GeForce GT 320		12960 Mtexels/sec
	Difference: 5840 (45%)

Pixel Rate

If using a high resolution is important to you, then the Radeon R5 M255 is superior to the GeForce GT 320, by a large margin. (explain)

Radeon R5 M255		7520 Mpixels/sec
GeForce GT 320		4320 Mpixels/sec
	Difference: 3200 (74%)

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: Bandwidth is the maximum amount of data (measured in megabytes per second) that can be transported past the external memory interface within a second. It's worked out by multiplying the card's interface width by its memory speed. In the case of DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster 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 can be applied per second. This figure is calculated 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate is also dependant 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.