Radeon R9 280 vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which has GPU core speed of 926 MHz, and 8192 MB of GDDR5 memory set to run at 1650 MHz through a 256-bit bus. It also is comprised of 2048 Stream Processors, 128 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.

3DMark Fire Strike Graphics Score

Radeon RX 470		11756 points
Radeon R9 280		7961 points
	Difference: 3795 (48%)

Zcash Mining Hash Rate

Radeon RX 470		289 Sol/s
Radeon R9 280		183 Sol/s
	Difference: 106 (58%)

Ethereum Mining Hash Rate

Radeon RX 470		26 Mh/s
Radeon R9 280		22 Mh/s
	Difference: 4 (18%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 470		120 Watts
Radeon R9 280		250 Watts
	Difference: 130 Watts (108%)

Memory Bandwidth

Theoretically speaking, the Radeon R9 280 should perform a small bit faster than the Radeon RX 470 in general. (explain)

Radeon R9 280		240000 MB/sec
Radeon RX 470		211200 MB/sec
	Difference: 28800 (14%)

Texel Rate

The Radeon RX 470 will be a little bit (more or less 13%) faster with regards to AF than the Radeon R9 280. (explain)

Radeon RX 470		118528 Mtexels/sec
Radeon R9 280		104496 Mtexels/sec
	Difference: 14032 (13%)

Pixel Rate

The Radeon R9 280 should be just a bit (more or less 1%) faster with regards to anti-aliasing than the Radeon RX 470, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon R9 280		29856 Mpixels/sec
Radeon RX 470		29632 Mpixels/sec
	Difference: 224 (1%)

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

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed per second. This number is worked out by multiplying the total amount of texture units by the core speed of the chip. The better the texel rate, the better the card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels per second.

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The number is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.