GTX 1660 or Core i9-10900K

[pontiff]

Which one would be better for prime numbers hunt? I already have the GTX 1660 video card that I mentioned and I wonder if it's worth building a new rig with the latest and fastest CPU? Or the GPU computing with the hardware that I already have is superior to any new CPU? Thank you.

[kriesel]

Originally Posted by pontiff

Which one would be better for prime numbers hunt? I already have the GTX 1660 video card that I mentioned and I wonder if it's worth building a new rig with the latest and fastest CPU? Or the GPU computing with the hardware that I already have is superior to any new CPU? Thank you.

Welcome. GTX 1660 is excellent at TF, far faster than CPUs for the dollar invested or per kilowatt-hour.
CPUs and AMD GPUs are better at other forms of GIMPS computation typically. Radeon VII are CPU beaters on both price/performance and results/watt-hour. Radeon 6xxx are supposedly pretty good too.
There's also cloud computing, some of which is free, so hard to beat on price/performance.
So, it depends what you want to run, and how much. Try some out and see what you enjoy most or least.
See the reference info for lots more background info.

[moebius]

Welcome to the forum,
I have values for the GTX 1650 Super and the GTX 1660 TI for a specific exponent in the gpuOwl-Comparison List, give me a benchmark for the GTX 1660 if you want, to make the sheet more useful.

[pontiff]

Originally Posted by moebius

Welcome to the forum,
I have values for the GTX 1650 Super and the GTX 1660 TI for a specific exponent in the gpuOwl-Comparison List, give me a benchmark for the GTX 1660 if you want, to make the sheet more useful.

I'll gladly do that if you'd tell me how :)

[pontiff]

Originally Posted by kriesel

Welcome. GTX 1660 is excellent at TF, far faster than CPUs for the dollar invested or per kilowatt-hour.
CPUs and AMD GPUs are better at other forms of GIMPS computation typically. Radeon VII are CPU beaters on both price/performance and results/watt-hour. Radeon 6xxx are supposedly pretty good too.
There's also cloud computing, some of which is free, so hard to beat on price/performance.
So, it depends what you want to run, and how much. Try some out and see what you enjoy most or least.
See the reference info for lots more background info.

Thank you! I'll stick to my current video card then, but will probably invest in something better along the road. I tried cloud computing too and enjoying a free month, not bad, price-wise :)

[moebius]

Originally Posted by pontiff

I'll gladly do that if you'd tell me how :)

Download the Windows version

Fastest Windows Version (with Proofs)
https://mersenneforum.org/showpost.p...94&postcount=8

Then run the first 300000 itterations with gpuOwl for the exponent 77936867 at the Windows command Line.

Type cmd in the windows search field and switch to the gpuOwl directory with cd path f.e. cd C:\Users\username\gpuowl-v6.11-364-g36f4e2a.
Execute the binary at the command line with gpuowl-win -iters 300000 -prp 77936867


or you use the Linux binary version (needs further installation effort, read: How to set up for running gpuOwl under Ubuntu (and other Linux) with OpenCL

Linux binary version Ubuntu 18.04
https://mersenneforum.org/showpost.p...1&postcount=40

gpuowl -iters 300000 -prp 77936867

post the result from the gpuowl.log file in this thread https://mersenneforum.org/showthread...779#post585779

[pontiff]

Done, log posted!


You're saying that gpuowl-win v6.11-364-g36f4e2a is faster than the latest gpuowl-v7.2-69-g23c14a1 ?

[kriesel]

Originally Posted by pontiff

You're saying that gpuowl-win v6.11-364-g36f4e2a is faster than the latest gpuowl-v7.2-69-g23c14a1 ?

Yes for most fft lengths. See the last couple benchmark attachments here in the reference info.