GeForce RTX 4080 vs Radeon R9 295X2

Intro

Compare all of that to the Radeon R9 295X2, which has a GPU core clock speed of 1018 MHz, and 4096 MB of GDDR5 memory running at 1250 MHz through a 512-bit bus. It also is comprised of 2816 Stream Processors, 176 TAUs, and 64 ROPs.

Display Graphs

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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

Theoretically speaking, the GeForce RTX 4080 is 15% quicker than the Radeon R9 295X2 overall, because of its higher bandwidth. (explain)

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

Texel Rate

The GeForce RTX 4080 is quite a bit (approximately 87%) faster with regards to 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

If using high levels of AA is important to you, then the GeForce RTX 4080 is superior to the Radeon R9 295X2, by a large margin. (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: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be moved over the external memory interface within a second. It's calculated by multiplying the bus width by the speed of its memory. In the case of DDR type RAM, it must be multiplied by 2 once again. If it uses DDR5, multiply by 4 instead. The higher the memory bandwidth, the better the card will be in general. It especially helps with anti-aliasing, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum texture map elements (texels) that are applied per second. This figure 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 in one second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly write to its local memory per 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 - also called Render Output Units) are responsible for outputting the pixels (image) to the screen. The actual pixel fill rate is also dependant on quite a few other factors, most notably the memory bandwidth of the card - the lower the memory bandwidth is, the lower the ability to reach the maximum fill rate.