Radeon R7 240 vs Radeon RX 460 2GB

Intro

Compare those specifications to the Radeon RX 460 2GB, which comes with a core clock speed of 1090 MHz and a GDDR5 memory frequency of 1750 MHz. It also uses a 128-bit memory bus, and uses a 14 nm design. It is made up of 896 SPUs, 56 TAUs, and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon RX 460 2GB		75 Watts
	Difference: 45 Watts (150%)

Memory Bandwidth

Theoretically speaking, the Radeon RX 460 2GB should be 289% quicker than the Radeon R7 240 overall, because of its greater data rate. (explain)

Radeon RX 460 2GB		112000 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 83200 (289%)

Texel Rate

The Radeon RX 460 2GB should be much (more or less 318%) faster with regards to anisotropic filtering than the Radeon R7 240. (explain)

Radeon RX 460 2GB		61040 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 46440 (318%)

Pixel Rate

The Radeon RX 460 2GB should be quite a bit (more or less 199%) faster with regards to AA than the Radeon R7 240, and will be able to handle higher resolutions while still performing well. (explain)

Radeon RX 460 2GB		17440 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 11600 (199%)

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: Bandwidth is the maximum amount of information (in units of megabytes per second) that can be transported over the external memory interface in a second. It is calculated by multiplying the card's interface width by its memory speed. If it uses DDR type memory, the result should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the most pixels that the graphics chip could possibly write to the local memory in one 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 outputting the pixels (image) to the screen. The actual pixel rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the maximum fill rate.