Linked by David Adams on Wed 4th Aug 2010 18:28 UTC, submitted by estherschindler
Hardware, Embedded Systems Anyone contemplating a new computer purchase (for personal use or business) is confronted with new (and confusing) hardware choices. Intel and AMD have done their best to differentiate the x86 architecture as much as possible while retaining compatibility between the two CPUs, but the differences between the two are growing. One key differentiator is hyperthreading; Intel does it, AMD does not. This article explains what that really means, with particular attention to the way different server OSes take advantage (or don't). Plenty of meaty tech stuff.
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Cores beat threads
by gnufreex on Wed 4th Aug 2010 20:13 UTC
gnufreex
Member since:
2010-05-06

6 cores with 6 threads CPU will beat 4 cores with 8 threads CPU.

Unless if 4c/8t processor has much better design. If the performance per core is in same ballpark, cores win over logical threads.

Reply Score: 3

RE: Cores beat threads
by Zifre on Wed 4th Aug 2010 20:52 in reply to "Cores beat threads"
Zifre Member since:
2009-10-04

6 cores with 6 threads CPU will beat 4 cores with 8 threads CPU.

Unless if 4c/8t processor has much better design. If the performance per core is in same ballpark, cores win over logical threads.

True, but I think the point is that a 4 core CPU with 8 threads will beat a 4 core CPU with 4 threads. I think HT gives you both better performance per $ and per watt.

Reply Parent Score: 3

RE[2]: Cores beat threads
by iseyler on Wed 4th Aug 2010 21:13 in reply to "RE: Cores beat threads"
iseyler Member since:
2008-11-15

Exactly. Hyper-Threading does give a performance boost if the application is designed to take advantage of it.

On an Atom-330 (Dual Core 1.6GHz), Hyper-Threading gives a 20% performance boost from our testing.

- Ian Seyler @ Return Infinity

Reply Parent Score: 1