Does 1st-gen Intel Core support GPU folding?

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TiO2
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Does 1st-gen Intel Core support GPU folding?

Post by TiO2 »

I have a spare GPU sitting around (an RTX 2070 Super), but unfortunately I can't fit a 2nd GPU in my main rig. I have an old 1st-gen Core i3-530 and a Dell motherboard sitting around that I could put the GPU into, and was wondering if a CPU that old (no AVX, etc.) can still support GPU folding. Thanks!
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Re: Does 1st-gen Intel Core support GPU folding?

Post by muziqaz »

TiO2 wrote: Sat Nov 15, 2025 5:43 am I have a spare GPU sitting around (an RTX 2070 Super), but unfortunately I can't fit a 2nd GPU in my main rig. I have an old 1st-gen Core i3-530 and a Dell motherboard sitting around that I could put the GPU into, and was wondering if a CPU that old (no AVX, etc.) can still support GPU folding. Thanks!
Never hurts to try. Install 64bit OS, and see what happens.
I am not aware of fahclient's requirement for CPU to have AVX. Just 64bit. As long as you do not try to fold on that CPU, you should be fine
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toTOW
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Re: Does 1st-gen Intel Core support GPU folding?

Post by toTOW »

Yes, first generation iX is the minimum requirement for GPU folding. I'm running an i7 920 and an i7 860 without issues.

Older CPUs (Core 2 Duo / Quad) won't be able to run GPU cores. They lacks SSE 4.2 support that is required.
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calxalot
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Re: Does 1st-gen Intel Core support GPU folding?

Post by calxalot »

I believe the current cpu cores are for
sse4.1, avx-256, or avx2-256
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Re: Does 1st-gen Intel Core support GPU folding?

Post by muziqaz »

avx128?
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calxalot
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Re: Does 1st-gen Intel Core support GPU folding?

Post by calxalot »

No. ARM NEON is 128, I believe.
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Re: Does 1st-gen Intel Core support GPU folding?

Post by muziqaz »

calxalot wrote: Sun Nov 16, 2025 12:26 am No. ARM NEON is 128, I believe.
I thought x86 AVX was 128, AVX2 bumped it to 256
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Re: Does 1st-gen Intel Core support GPU folding?

Post by calxalot »

I’m looking at the buildbot settings. It is what I said, albeit the cores were previously built by someone else. Probably with github actions. So they could be different.
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