Radeon R7 240 vs Radeon RX 480 4GB

Intro

Compare all of that to the Radeon RX 480 4GB, which comes with a core clock frequency of 1120 MHz and a GDDR5 memory speed of 1750 MHz. It also uses a 256-bit memory bus, and uses a 14 nm design. It features 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon RX 480 4GB		150 Watts
	Difference: 120 Watts (400%)

Memory Bandwidth

Performance-wise, the Radeon RX 480 4GB should theoretically be much better than the Radeon R7 240 in general. (explain)

Radeon RX 480 4GB		229376 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 200576 (696%)

Texel Rate

The Radeon RX 480 4GB should be a lot (more or less 1005%) more effective at AF than the Radeon R7 240. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 146680 (1005%)

Pixel Rate

If running with a high resolution is important to you, then the Radeon RX 480 4GB is a better choice, by a large margin. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 30000 (514%)

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 (in units of megabytes per second) that can be transported past the external memory interface within a second. It is worked out by multiplying the card's interface width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. The higher the bandwidth is, the faster the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be processed per second. This is calculated by multiplying the total 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 applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics 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 Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as 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 ability to reach the maximum fill rate.