GeForce RTX 2070 Super vs Radeon HD 7850

Intro

Compare those specifications to the Radeon HD 7850, which has GPU core speed of 860 MHz, and 2048 MB of GDDR5 RAM running at 1200 MHz through a 256-bit bus. It also is made up of 1024 SPUs, 64 Texture Address Units, and 32 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
GeForce RTX 2070 Super		215 Watts
	Difference: 85 Watts (65%)

Memory Bandwidth

The GeForce RTX 2070 Super should theoretically be a lot faster than the Radeon HD 7850 overall. (explain)

GeForce RTX 2070 Super		458752 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 305152 (199%)

Texel Rate

The GeForce RTX 2070 Super is much (about 367%) better at AF than the Radeon HD 7850. (explain)

GeForce RTX 2070 Super		256800 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 201760 (367%)

Pixel Rate

The GeForce RTX 2070 Super is much (more or less 273%) more effective at FSAA than the Radeon HD 7850, and also will be able to handle higher screen resolutions more effectively. (explain)

GeForce RTX 2070 Super		102720 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 75200 (273%)

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 MB per second) that can be transferred past the external memory interface in a second. It is worked out by multiplying the card's interface width by the speed of its memory. In the case of DDR type RAM, it should be multiplied by 2 once again. If DDR5, multiply by 4 instead. The better the bandwidth is, 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 texture map elements (texels) that can be processed in one second. This number is worked out by multiplying the total amount of texture units of the card by the core speed of the chip. The better the texel rate, the better the video card will be at texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum amount of pixels the video card could possibly record to its local memory in one second - measured in millions of pixels per second. The figure is calculated by multiplying the number of colour ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel fill rate also depends on quite a few other factors, especially the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the maximum fill rate.