GeForce RTX 2080 vs Radeon R7 250X 2GB

Intro

Compare that to the Radeon R7 250X 2GB, which has a core clock speed of 1000 MHz and a GDDR5 memory speed of 1125 MHz. It also makes use of a 128-bit bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 TAUs, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X 2GB		95 Watts
GeForce RTX 2080		215 Watts
	Difference: 120 Watts (126%)

Memory Bandwidth

The GeForce RTX 2080 should theoretically perform quite a bit faster than the Radeon R7 250X 2GB overall. (explain)

GeForce RTX 2080		458752 MB/sec
Radeon R7 250X 2GB		72000 MB/sec
	Difference: 386752 (537%)

Texel Rate

The GeForce RTX 2080 is a lot (about 597%) faster with regards to AF than the Radeon R7 250X 2GB. (explain)

GeForce RTX 2080		278760 Mtexels/sec
Radeon R7 250X 2GB		40000 Mtexels/sec
	Difference: 238760 (597%)

Pixel Rate

If running with a high resolution is important to you, then the GeForce RTX 2080 is a better choice, and very much so. (explain)

GeForce RTX 2080		96960 Mpixels/sec
Radeon R7 250X 2GB		16000 Mpixels/sec
	Difference: 80960 (506%)

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 maximum amount of information (in units of megabytes per second) that can be transferred across the external memory interface within a second. The number is worked out by multiplying the card's bus width by its memory clock speed. In the case of DDR type memory, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The better the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per 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 this number, the better the video card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in one second.

Pixel Rate: Pixel rate is the maximum amount of pixels that the graphics card can possibly write to its local memory in a second - measured in millions of pixels per second. The number is calculated by multiplying the amount of Raster Operations Pipelines by the the core clock speed. ROPs (Raster Operations Pipelines - aka Render Output Units) are responsible for filling the screen with pixels (the image). The actual pixel fill rate also depends on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the potential to reach the max fill rate.