GeForce RTX 2080 vs Radeon HD 7850

Intro

Compare those specs to the Radeon HD 7850, which comes with GPU core speed of 860 MHz, and 2048 MB of GDDR5 RAM set to run at 1200 MHz through a 256-bit bus. It also features 1024 Stream Processors, 64 Texture Address Units, and 32 Raster Operation Units.

Display Graphs

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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		26155 points
Radeon HD 7850		5200 points
	Difference: 20955 (403%)

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 7850		130 Watts
GeForce RTX 2080		215 Watts
	Difference: 85 Watts (65%)

Memory Bandwidth

Theoretically, the GeForce RTX 2080 should be quite a bit faster than the Radeon HD 7850 in general. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon HD 7850		153600 MB/sec
	Difference: 305152 (199%)

Texel Rate

The GeForce RTX 2080 is a lot (approximately 406%) more effective at AF than the Radeon HD 7850. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon HD 7850		55040 Mtexels/sec
	Difference: 223720 (406%)

Pixel Rate

The GeForce RTX 2080 should be a lot (about 252%) faster with regards to FSAA than the Radeon HD 7850, and also able to handle higher resolutions without slowing down too much. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon HD 7850		27520 Mpixels/sec
	Difference: 69440 (252%)

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 data (in units of MB per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. If the card has DDR type memory, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the better 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 amount of texture map elements (texels) that are applied per second. This is worked out by multiplying the total texture units of the card by the core clock 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 processed per second.

Pixel Rate: Pixel rate is the maximum number of pixels the video card can possibly write to the local memory in a second - measured in millions of pixels per second. The number is worked out by multiplying the number of Raster Operations Pipelines 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 also depends on many other factors, especially the memory bandwidth of the card - the lower the bandwidth is, the lower the potential to reach the max fill rate.