GeForce GT 440 3GB vs Radeon R9 M390X

Intro

Compare those specs to the Radeon R9 M390X, which features core clock speeds of 723 MHz on the GPU, and 1250 MHz on the 4096 MB of GDDR5 memory. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon R9 M390X		125 Watts
	Difference: 69 Watts (123%)

Memory Bandwidth

The Radeon R9 M390X should theoretically perform much faster than the GeForce GT 440 3GB in general. (explain)

Radeon R9 M390X		160000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 116800 (270%)

Texel Rate

The Radeon R9 M390X is much (approximately 549%) better at anisotropic filtering than the GeForce GT 440 3GB. (explain)

Radeon R9 M390X		92544 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 78288 (549%)

Pixel Rate

The Radeon R9 M390X is much (about 62%) better at AA than the GeForce GT 440 3GB, and also will be able to handle higher screen resolutions more effectively. (explain)

Radeon R9 M390X		23136 Mpixels/sec
GeForce GT 440 3GB		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 transported past the external memory interface in a second. It's calculated by multiplying the card's bus width by the speed of its memory. If it uses DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

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

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