Comment by highfrequency | Hacker News Reader

Comment by highfrequency | Hacker News Reader

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Makes sense - a few weeks after Intel released Granite Rapids (their latest server chips), AMD released Epyc Turin with 40% better multi-core performance for the top-end chips (Intel 6980 vs. Epyc 9755, both 128 cores) - and not only that, but AMD was much cheaper. This price drop brings Intel 6980 from $17k to $12k, exactly matching the corresponding AMD 9755 price. Without the price reduction, Intel’s price per performance would be completely uncompetitive.

Curious if anyone has had success building dual socket GNR or Turin servers at home - seems motherboard availability is limited for retail customers. Also curious if anyone still sees Intel outperformance in any context, eg relating to AVX-512 or MKL workloads.

> Also curious if anyone still sees Intel outperformance in any context, eg relating to AVX-512 or MKL workloads.

Taking advantage CPU architecture still goes a long way. Yes, AMD is generally faster in SPEC and general purpose loads (and I root for AMD since forever), but when you write your application with a target microarchitecture, the results can be completely different.

We have some scientific applications where newer versions work slower than previous versions on older hardware, but the situation completely changes if you compile both on a period-correct hardware for the newer version.

ASM/Hand tuning is both a blessing and a curse.

It’s crazy for someone would have a Turin set up at home now as the TCO would cost more than a car, and also have to deal with power supply and cooling.

Not a very good car. :)

Some of us get crazy with our homelabs. The love of technology is enough of a motivator.

It's cold in my office today. I'm considering that I could use more cores, crunch some ML stuff locally instead of in the cloud, and solve two problems at once. The thermostat for the heater is allllll the way downstairs after all :D

256 cores = much more fun than a car!

Well, I'll say it depends, even if the car is out of the picture.

256 cores can be 256 levels of misery depending on where and how you install it. :)

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