GeForce GT 440 3GB vs Radeon R7 250X

Intro

Compare all that to the Radeon R7 250X, which comes with core clock speeds of 1000 MHz on the GPU, and 1125 MHz on the 1024 MB of GDDR5 memory. It features 640 SPUs along with 40 TAUs and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon R7 250X		95 Watts
	Difference: 39 Watts (70%)

Memory Bandwidth

The Radeon R7 250X should in theory be a lot faster than the GeForce GT 440 3GB in general. (explain)

Radeon R7 250X		72000 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 28800 (67%)

Texel Rate

The Radeon R7 250X should be quite a bit (approximately 181%) more effective at texture filtering than the GeForce GT 440 3GB. (explain)

Radeon R7 250X		40000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 25744 (181%)

Pixel Rate

The Radeon R7 250X should be a bit (about 12%) faster with regards to full screen anti-aliasing than the GeForce GT 440 3GB, and able to handle higher resolutions without losing too much performance. (explain)

Radeon R7 250X		16000 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 1744 (12%)

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 information (measured in MB per second) that can be moved across the external memory interface within a second. It is worked out by multiplying the card's bus width by the speed of its memory. If it uses DDR type RAM, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The higher the 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 processed in one second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The higher the texel rate, 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 maximum amount of pixels that the graphics chip can possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the number of Raster Operations Pipelines by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel rate is also dependant on many other factors, especially the memory bandwidth - the lower the bandwidth is, the lower the potential to get to the maximum fill rate.