GeForce GT 440 3GB vs Radeon R9 270

Intro

Compare those specifications to the Radeon R9 270, which features core speeds of 900 MHz on the GPU, and 1400 MHz on the 2048 MB of GDDR5 RAM. It features 1280 SPUs as well as 80 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon R9 270		150 Watts
	Difference: 94 Watts (168%)

Memory Bandwidth

The Radeon R9 270 should in theory be much faster than the GeForce GT 440 3GB in general. (explain)

Radeon R9 270		179200 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 136000 (315%)

Texel Rate

The Radeon R9 270 should be much (more or less 405%) faster with regards to anisotropic filtering than the GeForce GT 440 3GB. (explain)

Radeon R9 270		72000 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 57744 (405%)

Pixel Rate

The Radeon R9 270 is quite a bit (more or less 102%) more effective at FSAA than the GeForce GT 440 3GB, and should be capable of handling higher screen resolutions more effectively. (explain)

Radeon R9 270		28800 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 14544 (102%)

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 data (counted in megabytes per second) that can be transported across the external memory interface in one second. It is worked out by multiplying the card's interface width by its memory speed. If the card has DDR RAM, it must be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the bandwidth is, the faster 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 are applied per second. This figure is calculated by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card could possibly record 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 the core clock speed. 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 quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.