GeForce GT 440 3GB vs Radeon RX 580

Intro

Compare those specifications to the Radeon RX 580, which comes with core speeds of 1257 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs as well as 144 TAUs and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon RX 580		185 Watts
	Difference: 129 Watts (230%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 580 should be 507% quicker than the GeForce GT 440 3GB in general, because of its higher bandwidth. (explain)

Radeon RX 580		262144 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 218944 (507%)

Texel Rate

The Radeon RX 580 should be much (about 1170%) better at texture filtering than the GeForce GT 440 3GB. (explain)

Radeon RX 580		181008 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 166752 (1170%)

Pixel Rate

If using a high screen resolution is important to you, then the Radeon RX 580 is a better choice, by a large margin. (explain)

Radeon RX 580		40224 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 25968 (182%)

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 MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. If it uses DDR RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that are processed per second. This number is worked out by multiplying the total amount of texture units by the core clock speed of the chip. The better the texel rate, the better the card will be at 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 can possibly write to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.