GeForce RTX 4080 vs Radeon R9 295X2

Intro

Compare that to the Radeon R9 295X2, which uses a 28 nm design. AMD has clocked the core speed at 1018 MHz. The GDDR5 RAM runs at a speed of 1250 MHz on this model. It features 2816 SPUs along with 176 Texture Address Units and 64 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 4080		320 Watts
Radeon R9 295X2		500 Watts
	Difference: 180 Watts (56%)

Memory Bandwidth

In theory, the GeForce RTX 4080 should be 15% faster than the Radeon R9 295X2 in general, because of its higher data rate. (explain)

GeForce RTX 4080		734003 MB/sec
Radeon R9 295X2		640000 MB/sec
	Difference: 94003 (15%)

Texel Rate

The GeForce RTX 4080 should be much (approximately 87%) more effective at texture filtering than the Radeon R9 295X2. (explain)

GeForce RTX 4080		670320 Mtexels/sec
Radeon R9 295X2		358336 Mtexels/sec
	Difference: 311984 (87%)

Pixel Rate

The GeForce RTX 4080 should be much (approximately 90%) more effective at full screen anti-aliasing than the Radeon R9 295X2, and will be capable of handling higher screen resolutions more effectively. (explain)

GeForce RTX 4080		246960 Mpixels/sec
Radeon R9 295X2		130304 Mpixels/sec
	Difference: 116656 (90%)

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.

One or more cards in this comparison are multi-core. This means that their bandwidth, texel and pixel rates are theoretically doubled - this does not mean the card will actually perform twice as fast, but only that it should in theory be able to. Actual game benchmarks will give a more accurate idea of what it's capable of.

Price Comparison

Specifications

Memory Bandwidth: Bandwidth is the maximum amount of data (counted in MB per second) that can be transported past the external memory interface in one second. The number is worked out by multiplying the interface width by its memory speed. In the case of DDR type RAM, it should be multiplied by 2 again. If it uses DDR5, multiply by 4 instead. The higher the bandwidth is, the faster 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 are applied in one second. This number is calculated by multiplying the total amount of texture units by the core speed of the chip. The higher this number, 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 amount of pixels that the graphics chip could possibly write to the local memory per second - measured in millions of pixels per second. The figure is calculated by multiplying the amount of ROPs by the the core clock speed. ROPs (Raster Operations Pipelines - aka 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, especially the memory bandwidth - the lower the memory bandwidth is, the lower the ability to get to the maximum fill rate.