GeForce RTX 2070 Super vs Radeon R9 390 8G

Intro

Compare those specs to the Radeon R9 390 8G, which has GPU core speed of 1000 MHz, and 8192 MB of GDDR5 memory running at 1500 MHz through a 512-bit bus. It also features 2560 Stream Processors, 160 Texture Address Units, and 64 Raster Operation Units.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 2070 Super		215 Watts
Radeon R9 390 8G		275 Watts
	Difference: 60 Watts (28%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 2070 Super should in theory be a small bit superior to the Radeon R9 390 8G overall. (explain)

GeForce RTX 2070 Super		458752 MB/sec
Radeon R9 390 8G		384000 MB/sec
	Difference: 74752 (19%)

Texel Rate

The GeForce RTX 2070 Super is a lot (about 61%) faster with regards to anisotropic filtering than the Radeon R9 390 8G. (explain)

GeForce RTX 2070 Super		256800 Mtexels/sec
Radeon R9 390 8G		160000 Mtexels/sec
	Difference: 96800 (61%)

Pixel Rate

The GeForce RTX 2070 Super is quite a bit (approximately 61%) more effective at full screen anti-aliasing than the Radeon R9 390 8G, and capable of handling higher screen resolutions without losing too much performance. (explain)

GeForce RTX 2070 Super		102720 Mpixels/sec
Radeon R9 390 8G		64000 Mpixels/sec
	Difference: 38720 (61%)

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 information (in units of megabytes per second) that can be transported over the external memory interface in a second. It's calculated by multiplying the interface width by the speed of its memory. If it uses DDR RAM, the result should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The higher 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 texture map elements (texels) that are processed per second. This number is worked out by multiplying the total number of texture units by the core speed of the chip. The better this number, the better the graphics card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels processed per second.

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