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

Intro

Compare those specs 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 Stream Processors, 176 TAUs, and 64 Raster Operation Units.

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

Theoretically speaking, the Radeon R9 390X 8G should be quite a bit faster than the GeForce GT 440 3GB overall. (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 should be quite a bit (about 1196%) faster with regards to texture filtering 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

The Radeon R9 390X 8G is much (approximately 371%) faster with regards to anti-aliasing than the GeForce GT 440 3GB, and also will be able to handle higher screen resolutions while still performing well. (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: Bandwidth is the maximum amount of data (counted in megabytes per second) that can be transported over the external memory interface in a second. It is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The better this number, 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 most pixels the video card can possibly record to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of colour ROPs by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.