GeForce RTX 2070 Super vs Radeon HD 7850

Intro

Compare that to the Radeon HD 7850, which has GPU core speed of 860 MHz, and 2048 MB of GDDR5 memory running at 1200 MHz through a 256-bit bus. It also is comprised of 1024 SPUs, 64 TAUs, and 32 ROPs.

Display Graphs

Hide Graphs

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

Theoretically, the GeForce RTX 2070 Super should be much 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 will be quite a bit (more or less 367%) more effective at anisotropic filtering than the Radeon HD 7850. (explain)

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

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 2070 Super is the winner, and very much so. (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 largest amount of information (in units of megabytes per second) that can be moved past the external memory interface in a second. It is calculated by multiplying the interface width by its memory speed. In the case of DDR memory, it must be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the memory bandwidth, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be processed in one second. This is worked out by multiplying the total texture units of the card 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 most pixels that the graphics chip can possibly write to the local memory in one second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of colour ROPs by the the core clock speed. 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 fill rate is also dependant on many other factors, most notably the memory bandwidth of the card - the lower the bandwidth is, the lower the ability to reach the maximum fill rate.