GeForce RTX 4080 vs Radeon R7 250X

Intro

Compare all that to the Radeon R7 250X, which has a core clock speed of 1000 MHz and a GDDR5 memory frequency of 1125 MHz. It also features a 128-bit memory bus, and uses a 28 nm design. It is made up of 640 SPUs, 40 Texture Address Units, and 16 ROPs.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon R7 250X		95 Watts
GeForce RTX 4080		320 Watts
	Difference: 225 Watts (237%)

Memory Bandwidth

As far as performance goes, the GeForce RTX 4080 should in theory be a lot superior to the Radeon R7 250X overall. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon R7 250X		72000 MB/sec
	Difference: 662003 (919%)

Texel Rate

The GeForce RTX 4080 should be much (approximately 1576%) better at AF than the Radeon R7 250X. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon R7 250X		40000 Mtexels/sec
	Difference: 630320 (1576%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce RTX 4080 is a better choice, and very much so. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon R7 250X		16000 Mpixels/sec
	Difference: 230960 (1444%)

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 transported past the external memory interface within a second. It is calculated by multiplying the card's interface width by the speed of its memory. If it uses DDR RAM, it should be multiplied by 2 again. If DDR5, multiply by 4 instead. The better the card's memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, HDR and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that can be applied per second. This number is calculated by multiplying the total number of texture units by the core clock speed of the chip. The higher this number, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels in a second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to its local memory per second - measured in millions of pixels per second. The number is calculated by multiplying the amount of colour ROPs by the the card's clock speed. ROPs (Raster Operations Pipelines - also sometimes called Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate is also dependant on quite a few other factors, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.