GeForce RTX 2080 Ti vs Radeon R9 390 8G

Intro

Compare those specifications to the Radeon R9 390 8G, which comes with clock speeds of 1000 MHz on the GPU, and 1500 MHz on the 8192 MB of GDDR5 memory. It features 2560 SPUs as well as 160 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

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

GeForce RTX 2080 Ti		31381 points
Radeon R9 390 8G		12733 points
	Difference: 18648 (146%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2080 Ti		250 Watts
Radeon R9 390 8G		275 Watts
	Difference: 25 Watts (10%)

Memory Bandwidth

Theoretically speaking, the GeForce RTX 2080 Ti should be 64% faster than the Radeon R9 390 8G in general, because of its higher bandwidth. (explain)

GeForce RTX 2080 Ti		630784 MB/sec
Radeon R9 390 8G		384000 MB/sec
	Difference: 246784 (64%)

Texel Rate

The GeForce RTX 2080 Ti will be a lot (more or less 130%) more effective at texture filtering than the Radeon R9 390 8G. (explain)

GeForce RTX 2080 Ti		367200 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 207200 (130%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 2080 Ti is the winner, by a large margin. (explain)

GeForce RTX 2080 Ti		118800 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 54800 (86%)

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 maximum amount of information (in units of MB per second) that can be transported over the external memory interface in a second. It's worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR memory, it must be multiplied by 2 again. If it uses 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, High Dynamic Range and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is worked out by multiplying the total texture units by the core speed of the chip. The better the texel rate, 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 amount of pixels the graphics card can possibly record to its local memory per second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of 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 output rate is also dependant on lots of other factors, most notably the memory bandwidth - the lower the bandwidth is, the lower the potential to reach the maximum fill rate.