Radeon R9 270X vs Radeon RX 480

Intro

Compare those specifications to the Radeon RX 480, which has clock speeds of 1120 MHz on the GPU, and 2000 MHz on the 8192 MB of GDDR5 RAM. It features 2304 SPUs along with 144 Texture Address Units and 32 ROPs.

Display Graphs

Hide Graphs

Benchmarks

These are real-world performance benchmarks that were submitted by Hardware Compare users. The scores seen here are the average of all benchmarks submitted for each respective test and hardware.

3DMark Fire Strike Graphics Score

Radeon RX 480		13349 points
Radeon R9 270X		6590 points
	Difference: 6759 (103%)

Zcash Mining Hash Rate

Radeon RX 480		280 Sol/s
Radeon R9 270X		177 Sol/s
	Difference: 103 (58%)

Ethereum Mining Hash Rate

Radeon RX 480		27 Mh/s
Radeon R9 270X		18 Mh/s
	Difference: 9 (50%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480		150 Watts
Radeon R9 270X		180 Watts
	Difference: 30 Watts (20%)

Memory Bandwidth

Theoretically, the Radeon RX 480 should perform quite a bit faster than the Radeon R9 270X overall. (explain)

Radeon RX 480		262144 MB/sec
Radeon R9 270X		179200 MB/sec
	Difference: 82944 (46%)

Texel Rate

The Radeon RX 480 is a lot (approximately 102%) more effective at anisotropic filtering than the Radeon R9 270X. (explain)

Radeon RX 480		161280 Mtexels/sec
Radeon R9 270X		80000 Mtexels/sec
	Difference: 81280 (102%)

Pixel Rate

The Radeon RX 480 should be a bit (more or less 12%) more effective at AA than the Radeon R9 270X, and also should be capable of handling higher screen resolutions without losing too much performance. (explain)

Radeon RX 480		35840 Mpixels/sec
Radeon R9 270X		32000 Mpixels/sec
	Difference: 3840 (12%)

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 max amount of data (in units of MB per second) that can be moved over the external memory interface within a second. It's worked out by multiplying the bus width by its memory clock speed. If it uses DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed in one second. This is worked out 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 texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

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