Info PrimeGrid Challenges 2024, sieve-free edition

[Markfw]

Will only be good for the Intel CPUs which have that much L3 cache

which are what CPUs ?

 

[gsrcrxsi]

which are what CPUs ?

A lot of the newer and even older Intel Xeons with large single cache.

Intel CPUs have had 45+MB L3 for a long time, even back to the E5-v3 models. Didn’t get AVX512 until the Xeon Scalable models, but many of those have 100+ MB too. The key is that it’s a single cache and not chiplets like AMD. Only the X3D models from have more than 32MB in a single cache block for AMD.

 

[gsrcrxsi]

But even the appropriate Intel CPUs with lots of cache will be slower than GPUs.

 

[Icecold]

But even the appropriate Intel CPUs with lots of cache will be slower than GPUs.

Yeah when I tested it on a dual cascade lake system, which should be pretty close to a best case scenario (enough cache for the tasks to run 2 per CPU, AVX512, etc.) It was still only ~562k points per day which even an older GPU should be able to beat.

 

[Markfw]

Yeah when I tested it on a dual cascade lake system, which should be pretty close to a best case scenario (enough cache for the tasks to run 2 per CPU, AVX512, etc.) It was still only ~562k points per day which even an older GPU should be able to beat.

Thanks. I will stick with my 3 4080 and 5 4090 cards. Anything else I have like 4090ti's are for emergency ,as they are very inefficient.