GeForce GT 440 1.5GB vs Radeon R5 M255

Intro

Compare those specs to the Radeon R5 M255, which has a GPU core clock speed of 940 MHz, and 2048 MB of DDR3 memory running at 1000 MHz through a 64-bit bus. It also is comprised of 320 SPUs, 20 TAUs, and 8 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

Performance-wise, the GeForce GT 440 1.5GB should theoretically be much superior to the Radeon R5 M255 in general. (explain)

GeForce GT 440 1.5GB		43200 MB/sec
Radeon R5 M255		16000 MB/sec
	Difference: 27200 (170%)

Texel Rate

The Radeon R5 M255 is a lot (about 32%) better at anisotropic filtering than the GeForce GT 440 1.5GB. (explain)

Radeon R5 M255		18800 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 4544 (32%)

Pixel Rate

If using a high resolution is important to you, then the GeForce GT 440 1.5GB is the winner, and very much so. (explain)

GeForce GT 440 1.5GB		14256 Mpixels/sec
Radeon R5 M255		7520 Mpixels/sec
	Difference: 6736 (90%)

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 largest amount of information (counted in MB per second) that can be moved over the external memory interface in a second. It is worked out by multiplying the card's bus width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This figure is worked out by multiplying the total number 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 applied in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card could possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.