GeForce GT 440 3GB vs Radeon R9 390X 8G

Intro

Compare that to the Radeon R9 390X 8G, which comes with a GPU core clock speed of 1050 MHz, and 8192 MB of GDDR5 RAM set to run at 1500 MHz through a 512-bit bus. It also features 2816 SPUs, 176 TAUs, and 64 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon R9 390X 8G		275 Watts
	Difference: 219 Watts (391%)

Memory Bandwidth

In theory, the Radeon R9 390X 8G should perform a lot faster than the GeForce GT 440 3GB in general. (explain)

Radeon R9 390X 8G		384000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 340800 (789%)

Texel Rate

The Radeon R9 390X 8G will be a lot (about 1196%) faster with regards to AF than the GeForce GT 440 3GB. (explain)

Radeon R9 390X 8G		184800 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 170544 (1196%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon R9 390X 8G is superior to the GeForce GT 440 3GB, and very much so. (explain)

Radeon R9 390X 8G		67200 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 52944 (371%)

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's calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied per second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better this number, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip can possibly write to its local memory in one second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the number of colour ROPs by the the core speed of the card. 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 lots of other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.