GeForce GT 440 1.5GB vs Radeon R9 M280X

Intro

Compare those specifications to the Radeon R9 M280X, which has clock speeds of 900 MHz on the GPU, and 1375 MHz on the 4096 MB of GDDR5 RAM. It features 896 SPUs as well as 56 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 1.5GB		56 Watts
Radeon R9 M280X		75 Watts
	Difference: 19 Watts (34%)

Memory Bandwidth

The Radeon R9 M280X, in theory, should perform a lot faster than the GeForce GT 440 1.5GB in general. (explain)

Radeon R9 M280X		88000 MB/sec
GeForce GT 440 1.5GB		43200 MB/sec
	Difference: 44800 (104%)

Texel Rate

The Radeon R9 M280X will be much (more or less 254%) faster with regards to texture filtering than the GeForce GT 440 1.5GB. (explain)

Radeon R9 M280X		50400 Mtexels/sec
GeForce GT 440 1.5GB		14256 Mtexels/sec
	Difference: 36144 (254%)

Pixel Rate

The Radeon R9 M280X is a bit (about 1%) better at full screen anti-aliasing than the GeForce GT 440 1.5GB, and also will be able to handle higher resolutions without losing too much performance. (explain)

Radeon R9 M280X		14400 Mpixels/sec
GeForce GT 440 1.5GB		14256 Mpixels/sec
	Difference: 144 (1%)

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 max amount of information (measured in MB per second) that can be transferred across the external memory interface within a second. It's worked out by multiplying the interface width by its memory speed. If it uses DDR RAM, the result should be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the card's memory bandwidth, 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 number of texture map elements (texels) that are processed in one second. This number is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, the better the graphics 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 amount of pixels the video card could possibly write to the local memory per second - measured in millions of pixels per second. Pixel rate is worked out by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel output rate also depends on lots of other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the ability to get to the maximum fill rate.