GeForce GT 440 1.5GB vs Radeon R9 M390X

Intro

Compare that to the Radeon R9 M390X, which features a GPU core clock speed of 723 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 Texture Address Units, and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon R9 M390X		125 Watts
	Difference: 69 Watts (123%)

Memory Bandwidth

In theory, the Radeon R9 M390X should be 270% quicker than the GeForce GT 440 1.5GB overall, because of its greater bandwidth. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 116800 (270%)

Texel Rate

The Radeon R9 M390X will be a lot (more or less 549%) faster with regards to AF than the GeForce GT 440 1.5GB. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 78288 (549%)

Pixel Rate

If running with a high screen resolution is important to you, then the Radeon R9 M390X is the winner, by a large margin. (explain)

Radeon R9 M390X		23136 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 8880 (62%)

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 largest amount of data (counted in megabytes per second) that can be moved over the external memory interface in one second. It is worked out by multiplying the interface width by its memory clock speed. In the case of DDR type memory, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher this number, 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 number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.