GeForce GT 440 1.5GB vs Radeon R9 M390X

Intro

Compare all that to the Radeon R9 M390X, which comes with a core clock speed of 723 MHz and a GDDR5 memory frequency of 1250 MHz. It also uses a 256-bit bus, and uses a 28 nm design. It is made up of 2048 SPUs, 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

Performance-wise, the Radeon R9 M390X should in theory be a lot superior to the GeForce GT 440 1.5GB overall. (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 much (more or less 549%) better at texture filtering 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

The Radeon R9 M390X will be a lot (more or less 62%) faster with regards to AA than the GeForce GT 440 1.5GB, and also capable of handling higher screen resolutions while still performing well. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported across the external memory interface in a second. The number is calculated by multiplying the card's bus width by its memory speed. In the case of DDR type memory, it should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total texture units by the core clock speed of the chip. The higher this number, the better the video 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 that the graphics card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel output rate is also dependant on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.