Almost 10! – An impressive result! It turns out that the 5090 surpasses the 4090 by almost 2.5 times. But why? After all, the difference between the 4090 and 3090 wasn’t that significant, just like between the 2080 Ti and 1080 Ti. At the very least, it's comparable to the difference between the 1080 Ti and 4090. I’ve had experience with the 1080 Ti, 2080 Ti, 3080 Ti, and now the 4090, but I’ve never seen such drastic jumps—at most, a performance increase of about 1.5 times.
No, it's not surpassing 2.5 times. An RTX 4090 reaches 6.9 GK/s. IDK what you're using, but Keyhunt-CUDA supposedly goes beyond 6 GK/s, and that one isn't even fully optimized.
RTX 4090: 128 SM cores
RTX 5090: 170 SM cores
If we compare SM by SM speed increase (for computing and hashing BTC pub keys), it's somewhere around a 10% speedup. So RTX 5090 has no dramatic effect, just more SMs and more power requirements.
The bottleneck is the SHA and RIPEMD hashing, which eat up most of the time. I didn't look if there are ways to improve those - if somehow they can be transformed to multiplications instead of logical operations, the speed may increase.
I’m curious, which program manages to achieve almost 7Gkey on a 4090? In the most optimized version for CUDA 12.6, I get less than 5, and in older versions like BitCrack or KeyHunt-CUDA, the performance is even lower—around 4 or less.
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