Radeon R9 295X2 vs Radeon RX 6800

Intro

Compare all of that to the Radeon RX 6800, which has a core clock speed of 1700 MHz and a GDDR6 memory speed of 2000 MHz. It also features a 256-bit bus, and uses a 7 nm design. It is comprised of 3840 SPUs, 240 TAUs, and 96 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon RX 6800		250 Watts
Radeon R9 295X2		500 Watts
	Difference: 250 Watts (100%)

Memory Bandwidth

Performance-wise, the Radeon R9 295X2 should in theory be much better than the Radeon RX 6800 overall. (explain)

Radeon R9 295X2		640000 MB/sec
Radeon RX 6800		524288 MB/sec
	Difference: 115712 (22%)

Texel Rate

The Radeon RX 6800 should be a bit (more or less 14%) better at anisotropic filtering than the Radeon R9 295X2. (explain)

Radeon RX 6800		408000 Mtexels/sec
Radeon R9 295X2		358336 Mtexels/sec
	Difference: 49664 (14%)

Pixel Rate

If using lots of anti-aliasing is important to you, then the Radeon RX 6800 is superior to the Radeon R9 295X2, and very much so. (explain)

Radeon RX 6800		163200 Mpixels/sec
Radeon R9 295X2		130304 Mpixels/sec
	Difference: 32896 (25%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the max amount of data (counted in MB per second) that can be moved across the external memory interface in one second. It is calculated by multiplying the interface width by its memory clock speed. In the case of DDR type RAM, it must be multiplied by 2 once again. If DDR5, multiply by ANOTHER 2x. 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 can be processed per second. This number is worked out by multiplying the total texture units by the core speed of the chip. The higher the texel rate, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied per second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card can possibly record to the local memory in one second - measured in millions of pixels per second. The number is worked out by multiplying the amount of Render Output Units by the the core speed of the card. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel output rate also depends on many other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.