Tera flops

[Anir]

AMD cards have more compute performance in terms of teraflops than their Nvidia counterparts, Vega 64 boasts almost 13 teraflops while 1080ti being 11 teraflops, still Vega 64 is beaten by a 1080. Why does this happen ?

[givingtnt]

4 minutes ago, Anir said:

AMD cards have more compute performance in terms of teraflops than their Nvidia counterparts, Vega 64 boasts almost 13 teraflops while 1080ti being 11 teraflops, still Vega 64 is beaten by a 1080. Why does this happen ?

architectures
Dram (and how its allocated)
Drivers (not all games support either cards well (or as well) )
render technologies

core clocks
dram clocks 

cooling

stability of overclocks

 

its not just about 1 number. there's lots of things that can affect performance.

[Enderman]

Because nvidia has millions of dollars to spend on software development and optimization for the games and their drivers.

[Tundral]

Theoretical max FLOPS doesn't directly translate to gaming performance. There are so many other pieces of the equation: hardware optimizations for gaming, the drivers, the driver optimizations for games, optimizations made by the game developer.

This also works the other way around for Nvidia, they have worse/gimped compute performance on their consumer cards because they haven't developed the cards for gaming, also they've actively disabled parts of the GPU that focus on computing tasks that are not needed for gaming.

[Princess Luna]

Because that is a raw performance measure without considering the software side of things.

[System Error Message]

all answers are wrong. Vega has more flops as in it does math faster. There are 3 different things in a GPU. TMUs, ROPs and shaders. Shaders perform maths (geomatry, shadows, etc). ROP deals with pixels, AA and post processing. TMUs deal with everything texture related.

Vega has more on shaders, less on TMUs and ROPs compared to nvidia. There are the number of units, and their clocks.