GeForce GT 440 1.5GB vs Radeon R5 M255

Intro

Compare those specs to the Radeon R5 M255, which makes use of a 28 nm design. AMD has set the core frequency at 940 MHz. The DDR3 RAM runs at a speed of 1000 MHz on this particular model. It features 320 SPUs along with 20 Texture Address Units and 8 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Memory Bandwidth

The GeForce GT 440 1.5GB, in theory, should perform a lot faster than the Radeon R5 M255 overall. (explain)

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

Texel Rate

The Radeon R5 M255 should be quite a bit (approximately 32%) more effective 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 running with high levels of AA is important to you, then the GeForce GT 440 1.5GB is a better choice, 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 data (measured in MB per second) that can be moved over the external memory interface in a second. It's worked out by multiplying the bus width by the speed of its memory. If it uses DDR type memory, 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 anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are applied per second. This figure is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the number of ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.