Radeon RX 460 vs Radeon RX 6800

Intro

Compare those specifications to the Radeon RX 6800, which uses a 7 nm design. AMD has clocked the core frequency at 1700 MHz. The GDDR6 memory runs at a speed of 2000 MHz on this card. It features 3840 SPUs as well as 240 TAUs and 96 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 460		75 Watts
Radeon RX 6800		250 Watts
	Difference: 175 Watts (233%)

Memory Bandwidth

In theory, the Radeon RX 6800 should perform a lot faster than the Radeon RX 460 overall. (explain)

Radeon RX 6800		524288 MB/sec
Radeon RX 460		112000 MB/sec
	Difference: 412288 (368%)

Texel Rate

The Radeon RX 6800 should be quite a bit (approximately 568%) faster with regards to AF than the Radeon RX 460. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon RX 460		61040 Mtexels/sec
	Difference: 346960 (568%)

Pixel Rate

The Radeon RX 6800 is a lot (more or less 836%) more effective at AA than the Radeon RX 460, and also will be able to handle higher screen resolutions without losing too much performance. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon RX 460		17440 Mpixels/sec
	Difference: 145760 (836%)

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 information (in units of megabytes per second) that can be moved across the external memory interface within a second. The number is worked out by multiplying the bus width by its memory speed. In the case of DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum amount of texture map elements (texels) that can be applied in one second. This figure is calculated by multiplying the total number of texture units by the core clock 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 in one second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the number of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - also sometimes called 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 - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.