Radeon R9 280X vs Radeon RX 480 4GB

Intro

Compare those specifications to the Radeon RX 480 4GB, which features a GPU core clock speed of 1120 MHz, and 4096 MB of GDDR5 memory set to run at 1750 MHz through a 256-bit bus. It also is comprised of 2304 SPUs, 144 Texture Address Units, and 32 ROPs.

Display Graphs

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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.

Zcash Mining Hash Rate

Radeon R9 280X		294 Sol/s
Radeon RX 480 4GB		267 Sol/s
	Difference: 27 (10%)

Ethereum Mining Hash Rate

Radeon RX 480 4GB		25 Mh/s
Radeon R9 280X		21 Mh/s
	Difference: 4 (19%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
Radeon R9 280X		250 Watts
	Difference: 100 Watts (67%)

Memory Bandwidth

The Radeon R9 280X should in theory perform quite a bit faster than the Radeon RX 480 4GB in general. (explain)

Radeon R9 280X		288000 MB/sec
Radeon RX 480 4GB		229376 MB/sec
	Difference: 58624 (26%)

Texel Rate

The Radeon RX 480 4GB will be a lot (approximately 48%) better at anisotropic filtering than the Radeon R9 280X. (explain)

Radeon RX 480 4GB		161280 Mtexels/sec
Radeon R9 280X		108800 Mtexels/sec
	Difference: 52480 (48%)

Pixel Rate

The Radeon RX 480 4GB will be much (more or less 32%) faster with regards to FSAA than the Radeon R9 280X, and also capable of handling higher resolutions while still performing well. (explain)

Radeon RX 480 4GB		35840 Mpixels/sec
Radeon R9 280X		27200 Mpixels/sec
	Difference: 8640 (32%)

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 MB per second) that can be transferred over the external memory interface in a second. It's calculated by multiplying the 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 4 instead. 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 are processed per second. This number is calculated by multiplying the total amount of texture units of the card by the core clock speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the number of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - also sometimes 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 - the lower the bandwidth is, the lower the potential to get to the max fill rate.