GeForce GT 440 3GB vs Radeon RX 570

Intro

Compare all of that to the Radeon RX 570, which has a GPU core clock speed of 1168 MHz, and 4096 MB of GDDR5 memory running at 1750 MHz through a 256-bit bus. It also features 2048 Stream Processors, 128 TAUs, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce GT 440 3GB		56 Watts
Radeon RX 570		150 Watts
	Difference: 94 Watts (168%)

Memory Bandwidth

Theoretically, the Radeon RX 570 should be quite a bit faster than the GeForce GT 440 3GB in general. (explain)

Radeon RX 570		229376 MB/sec
GeForce GT 440 3GB		43200 MB/sec
	Difference: 186176 (431%)

Texel Rate

The Radeon RX 570 will be much (about 949%) faster with regards to AF than the GeForce GT 440 3GB. (explain)

Radeon RX 570		149504 Mtexels/sec
GeForce GT 440 3GB		14256 Mtexels/sec
	Difference: 135248 (949%)

Pixel Rate

The Radeon RX 570 will be much (about 162%) better at FSAA than the GeForce GT 440 3GB, and also should be able to handle higher resolutions while still performing well. (explain)

Radeon RX 570		37376 Mpixels/sec
GeForce GT 440 3GB		14256 Mpixels/sec
	Difference: 23120 (162%)

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 maximum amount of information (counted in MB per second) that can be transported across the external memory interface within a second. It is calculated by multiplying the bus width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

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

Pixel Rate: Pixel rate is the maximum amount of pixels the graphics card could possibly record to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the max fill rate.