AMD G34 Magny-cours Opteron 6100 Series Information Thread

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Patrick

Administrator
Staff member
Dec 21, 2010
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I have been working a lot with Magny-cours over the past few weeks. With Interlagos (AMD's next-gen 16 core CPU) around the corner, I thought I would consolidate some information in a thread.

First off, the Magny-cours architecture is built on a 45nm process and is essentially two Opteron 4100 "Lisbon" CPUs melded into one package. Lisbon comes in four and six core varieties making Magny-cours packages eight and twelve cores. Furthermore, where Lisbon utilizes dual channel memory, Magny-cours is able to take advantage of quad channel memory (essentially two channels per incorporated Lisbon core.)

One of the biggest changes with the Opteron 6100 series, aside from the core count, was the introduction of Hyper-Transport 3 which alleviated a lot of the bottlenecks that plagued the Opteron 8000 series.

Looking forward, the G34 platform will support Interlagos so whereas Intel is discontinuing the LGA 1366 platform's use on new processors in the near future, AMD is using a socket with an easy upgrade path.

Quick Common Specs

  • Eight or Twelve Cores
  • 512KB L2 Cache per core
  • 12MB L3 Cache (two shared 6 MB)
  • Four HyperTransport 3.1 link at 6.40 GT/s
  • DDR3 1333MHz ECC memory supported
CPUs
6164HE to 6180 - 12 Core variants
6124HE to 6140 - 8 Core variants

Motherboards

UP
Supermicro
http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8SGL-F.cfmH8SGL(-F)http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8SGL-F.cfm

DP
ASUS
KGPE-D16
KGNH-D16
KGMH-D16/QDR

Supermicro

H8DG6(-F)http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8DG6-F.cfm
H8DGi(-F)http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8DGi-F.cfm
H8DGU(-F and -LN4F+)http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8DGU-F.cfm
H8DGG-QF http://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8DGG-QF.cfm
H8DGT-H(IBQ)Fhttp://www.supermicro.com/Aplus/motherboard/Opteron6100/SR56x0/H8DGT-HF.cfm


Tyan

S8232(W)GM4NRhttp://www.tyan.com/product_SKU_spec.aspx?ProductType=MB&pid=665&SKU=600000192
S8230(W)GM4NR(-LE)
S8236(W)GM3NR


MP (4 Socket)
Supermicro
H8QG6(+)-F
H8QGi(+)-F

Tyan
S8812WGM3NR
 

XZed

New Member
Feb 3, 2011
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After reading Patrick's reviews, i admit being interested in new AMD architecture...

But, after reading alot, I found this common conclusion :

overnumbered cores are really useful for right uses (virtualization, etc.).

But, about performance, i read that Turbo-boost is more useful for daily uses considering main single-threaded applications.

What leads me to ask :

- Does it mean that AMD hasn't any Turbo-boost equivalent ?

- On a daily standard basis (office applications, games, movies, etc.), even older Intel CPUs are better/adviced than new Magny-cours ?

I imagine that such a question can't be answered by a simple "yes/no" but just wanted a globl answer :).

By the way, if AMD choice is adviced : which magny-cours do you advice for a UP setup ?

Thank you.

Once again : thanks Patrick for your great site :) !
 

Patrick

Administrator
Staff member
Dec 21, 2010
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For a UP system, I would suggest Intel is better at this point. Most applications cannot take advantage of 24-48 cores (or even more than 4-8). In fact, a lot of the OS schedulers in Windows and Linux have issues with 24+ cores under some workloads. In general, most people see better performance from higher Intel clocks, enhanced by Turbo Boost. For the price, the Xeon E3's and Core i7-2600K are better values.
 

XZed

New Member
Feb 3, 2011
66
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Thank you very much.

My researches lead me to this conclusion too. By the way, i also read positive articles about Xeon's great o/c capacities (i read it, at least, for E56xx and E3).