Radeon R7 240 vs Radeon RX 470 4GB

Intro

Compare those specifications to the Radeon RX 470 4GB, which uses a 14 nm design. AMD has set the core frequency at 926 MHz. The GDDR5 memory runs at a frequency of 1650 MHz on this model. It features 2048 SPUs as well as 128 Texture Address Units and 32 Rasterization Operator Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 240		30 Watts
Radeon RX 470 4GB		120 Watts
	Difference: 90 Watts (300%)

Memory Bandwidth

The Radeon RX 470 4GB should theoretically be quite a bit faster than the Radeon R7 240 overall. (explain)

Radeon RX 470 4GB		211200 MB/sec
Radeon R7 240		28800 MB/sec
	Difference: 182400 (633%)

Texel Rate

The Radeon RX 470 4GB will be much (about 712%) more effective at anisotropic filtering than the Radeon R7 240. (explain)

Radeon RX 470 4GB		118528 Mtexels/sec
Radeon R7 240		14600 Mtexels/sec
	Difference: 103928 (712%)

Pixel Rate

If using a high resolution is important to you, then the Radeon RX 470 4GB is superior to the Radeon R7 240, by far. (explain)

Radeon RX 470 4GB		29632 Mpixels/sec
Radeon R7 240		5840 Mpixels/sec
	Difference: 23792 (407%)

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 transferred past the external memory interface in a second. The number is worked out by multiplying the card's interface width by its memory clock speed. If the card has DDR memory, the result should be multiplied by 2 once again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that can be applied in one second. This is worked out by multiplying the total number of texture units of the card 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 per second.

Pixel Rate: Pixel rate is the most pixels that the graphics chip can possibly record to its local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to get to the max fill rate.