GeForce RTX 3080 vs Radeon HD 4870 X2

Intro

Compare those specs to the Radeon HD 4870 X2, which comes with core clock speeds of 750 MHz on the GPU, and 900 MHz on the 1024 MB of GDDR5 memory. It features 800(160x5) SPUs along with 40 Texture Address Units and 16 Rasterization Operator Units.

Display Graphs

Hide Graphs

Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

GeForce RTX 3080		320 Watts
Radeon HD 4870 X2		350 Watts
	Difference: 30 Watts (9%)

Memory Bandwidth

The GeForce RTX 3080 should in theory be a lot faster than the Radeon HD 4870 X2 in general. (explain)

GeForce RTX 3080		778547 MB/sec
Radeon HD 4870 X2		230400 MB/sec
	Difference: 548147 (238%)

Texel Rate

The GeForce RTX 3080 should be much (approximately 553%) more effective at AF than the Radeon HD 4870 X2. (explain)

GeForce RTX 3080		391680 Mtexels/sec
Radeon HD 4870 X2		60000 Mtexels/sec
	Difference: 331680 (553%)

Pixel Rate

If running with a high screen resolution is important to you, then the GeForce RTX 3080 is the winner, and very much so. (explain)

GeForce RTX 3080		138240 Mpixels/sec
Radeon HD 4870 X2		24000 Mpixels/sec
	Difference: 114240 (476%)

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 max amount of data (measured in megabytes per second) that can be transported past the external memory interface in one second. The number is calculated by multiplying the bus width by the speed of its memory. If it uses DDR type RAM, the result should be multiplied by 2 again. If it uses DDR5, multiply by ANOTHER 2x. The higher the card's memory bandwidth, the better the card will be in general. It especially helps with AA, HDR and higher screen resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are applied in one second. This is worked out by multiplying the total texture units of the card 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 per second.

Pixel Rate: Pixel rate is the maximum number of pixels the graphics card could possibly write to the local memory in a second - measured in millions of pixels per second. The figure is worked out by multiplying the amount of ROPs by the clock speed of the card. ROPs (Raster Operations Pipelines - also sometimes called 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 bandwidth is, the lower the ability to reach the max fill rate.