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GeForce RTX 2080 vs Radeon RX 480 4GB

Intro

The GeForce RTX 2080 features a clock frequency of 1515 MHz and a GDDR6 memory speed of 14 MHz. It also uses a 256-bit bus, and uses a 12 nm design. It is comprised of 2944 SPUs, 184 TAUs, and 64 ROPs.

Compare all that to the Radeon RX 480 4GB, which has a core clock speed of 1120 MHz and a GDDR5 memory frequency of 1750 MHz. It also features a 256-bit bus, and makes use of a 14 nm design. It is made up of 2304 SPUs, 144 TAUs, and 32 Raster Operation Units.

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 480 4GB		150 Watts
GeForce RTX 2080		215 Watts
	Difference: 65 Watts (43%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 is 100% faster than the Radeon RX 480 4GB in general, because of its higher data rate. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon RX 480 4GB		229376 MB/sec
	Difference: 229376 (100%)

Texel Rate

The GeForce RTX 2080 should be quite a bit (about 73%) better at texture filtering than the Radeon RX 480 4GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon RX 480 4GB		161280 Mtexels/sec
	Difference: 117480 (73%)

Pixel Rate

The GeForce RTX 2080 is quite a bit (approximately 171%) more effective at full screen anti-aliasing than the Radeon RX 480 4GB, and also will be able to handle higher resolutions while still performing well. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon RX 480 4GB		35840 Mpixels/sec
	Difference: 61120 (171%)

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

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GeForce RTX 2080

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Radeon RX 480 4GB

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Please note that the price comparisons are based on search keywords - sometimes it might show cards with very similar names that are not exactly the same as the one chosen in the comparison. We do try to filter out the wrong results as best we can, though.

Specifications

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Model	GeForce RTX 2080	Radeon RX 480 4GB
Manufacturer	nVidia	AMD
Year	September 2018	June 2016
Code Name	TU104-400A-A1	Polaris 10
Memory	8192 MB	4096 MB
Core Speed	1515 MHz	1120 MHz
Memory Speed	14 GB/s	7000 MHz
Power (Max TDP)	215 watts	150 watts
Bandwidth	458752 MB/sec	229376 MB/sec
Texel Rate	278760 Mtexels/sec	161280 Mtexels/sec
Pixel Rate	96960 Mpixels/sec	35840 Mpixels/sec
Unified Shaders	2944	2304
Texture Mapping Units	184	144
Render Output Units	64	32
Bus Type	GDDR6	GDDR5
Bus Width	256-bit	256-bit
Fab Process	12 nm	14 nm
Transistors	(Unknown) million	5700 million
Bus	PCIe 3.0 x16	PCIe 3.0 x16
DirectX Version	DirectX 12	DirectX 12.0
OpenGL Version	OpenGL 4.6	OpenGL 4.5

Memory Bandwidth: Memory bandwidth is the maximum amount of data (in units of MB per second) that can be moved across the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If the card has DDR type RAM, it must be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and higher screen resolutions.

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

Pixel Rate: Pixel rate is the maximum number of pixels that the graphics chip could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the ability to reach the max fill rate.

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