Hyper threaded cores and logical cores

Toggle sidebar Toggle sidebar
Solution
getochkn
amd's are actual cores, 2 physical cores per unit, 4 units per chip equals 8 cores.

intel's will process 2 instructions per cycle on a single core, so a 4 core unit can process 8 instructions.

sorta the same, sorta different. lol.

depends on the appication and how they use it.
Sort by date Sort by votes
getochkn

getochkn

Polypheme
Jul 2, 2006
12,407
54
65,040
amd's are actual cores, 2 physical cores per unit, 4 units per chip equals 8 cores.

intel's will process 2 instructions per cycle on a single core, so a 4 core unit can process 8 instructions.

sorta the same, sorta different. lol.

depends on the appication and how they use it.
 
Upvote 0 Downvote
Solution
gamerk316

gamerk316

Glorious
Jul 8, 2008
13,234
131
44,840
Define a "core". Both AMD and Intel have shared resources the second logical core has to share, which throttles performance somewhat. AMD copies more of the resources then Intel, so AMD's logical cores are "stronger" then Intels logical cores.

Technically speaking, as long as you duplicate the CPU registers, you have the bare requirements for a CPU core.
 
Upvote 0 Downvote
nikoli707

nikoli707

Splendid
Jan 4, 2012
6,008
5
29,965
post sandy bridge, intel hyper thread cores are about 20% as strong as their physical cores. amd cores dont work like this and have dual physical units sharing their core caches, so each unit is the same speed as the others.

if you compared the two...
"if" the 2nd unit of 2 units in the amd core were considered "hyper threads", they would have the same strength as their 1st physical core/unit.
"if" the logical hyper threads in the intel cores were considered "units", they would be about 20% the strength as their 1st physical core/unit.
 
Upvote 0 Downvote
G

GaryMh

Honorable
Jan 15, 2014
7
0
10,520
I tend to think Intel is onto something with this hyperthreading story.

Because as explained by " gamerk316 " AMD Let's their logical cores share the same resources which ( as explained still ) more or less moderates your efficiency or output so to speak. So you can only get so much where with Intel's threads you get each thread at it's own max capability with no one pulling anyone else down. Obviously by thread I mean core..

Also I have an AMD & Intel set up at home and they're both 3.4ghz but the Intel performs quiet better and a lot more quiet than the AMD.

So there's that.
 
Upvote 0 Downvote
vmN

vmN

Honorable
Oct 27, 2013
1,666
0
12,160

I like to call it hyper-threading for intel and hyper-coring for AMD.
In reality they are almost doing the same thing.
AMD is doing the right thing, they just need to spread out the resources instead of only been good with integer.
AMD's L1 and L2 cache is also way to big, I think they also found out that is not a good thing, as that will greatly slow down any process which need to look through L1 and/or L2 cache.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom