Radeon R9 280 vs Radeon RX 470

Intro

Compare all that to the Radeon RX 470, which comes with a GPU core clock speed of 926 MHz, and 8192 MB of GDDR5 RAM set to run at 1650 MHz through a 256-bit bus. It also features 2048 SPUs, 128 TAUs, and 32 Raster Operation Units.

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 be 14% faster than the Radeon RX 470 overall, due to its greater bandwidth. (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 bit (approximately 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 a bit (approximately 1%) more effective at AA than the Radeon RX 470, and should be able to handle higher resolutions while still performing well. (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 (counted in MB per second) that can be moved across the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. If it uses DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the card's memory bandwidth, the faster the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are processed in one second. This figure is calculated by multiplying the total number of texture units of the card by the core 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 in a second.

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