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request info confirmation VT-D

L

lightp2

Gawd
Joined
Oct 28, 2009
Messages
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this is info research only. no immediate buying/usage.

1. I am searching at ark.intel.com
2. I am asking because sometimes maybe info update not complete.

RE : VT-D support. (please note VT-D, not VT-x, different thing)

1. All the 32nm hexa-core xeons/i7 do not list VT-D.
2. 32nm i5 650/660/680 list VT-D
3. 45nm Xeons 55xx/34xx have VT-D

are there any plan change or new development? personally trying to buy a budget system to try VT-D but does not seem to have any low-cost entry point for me :) and 32nm Xeon no VT-D surprised me.

note: understand core 2 series have VT-D with right combination of CPU/MB. thinking about moving to newer environment.
 
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Hmmmm... not sure on the answer here. I thought VT-d was more of a motherboard/chipset thing? I know my P6X58D Premium has an option for it in the BIOS. Never bothered enabling it or trying it out...
 
VT-D does depend on CPU. For example Core-i3 530 is good overclocking for entry-level system but does not support VT-D. The more expensive 2c/4t i5-650 does VT-D but price close to i5-750. i5-750 quad good all-rounder but no VT-D. Intel marketing/pricing departments are very good :)

no complaint on the situation, but I am just very surprise to see VT-D not listed for hexa-core. Don't know whether it is lacking website update or actual feature removal???
 
Pretty much all the Xeon 5500/5600 or 3400/3500 have VT-D support, which is expected.

It also lists the i7-8xx series as having VT-D, but not the i3/i5/i7-9xx series (except i5-6x0 and i7-8x0 series). I find the lack of VT-D on the i7-9xx series somewhat perplexing, given that X58 motherboards (DX58SO) have a VT-D option.
 
dexvx said:
I find the lack of VT-D on the i7-9xx series somewhat perplexing, given that X58 motherboards (DX58SO) have a VT-D option.
Click to expand...
They are trying to sell you a xeon for several x58 boards do take xeons.
 
If you read this article, it seems to suggest VT-D is supported on the i7 920.

http://www.unproductivitydefined.com/2010/02/building-modern-vmware-esxi-40-whitebox.html

I agree that Intel has been rather vague about VT-D support across it's processor line. I always thought VT-D was implemented in the chipset and not the processor. Perhaps with some of the chipset functionality being moved to the CPU in Lynnfield and Clarkdale, the VT-D functionality was also moved. If this is true, it would imply that for socket 1366 based CPUs, VT-D is implemented in the X58 chipset and for socket 1156 based CPUs, it's implemented in the CPU.

Off course, this is all conjecture on my behalf and hopefully somebody with a more thorough understanding can chime in.
 
As I understand it VT-d is implemented in the chipset but the CPU has to support it. I recently put together an i7 860 ESXi system and VT-d is working great. In hind sight I kind of wish I'd waited since AMD 890fx boards now support IOMMU (same thing as VT-d) and I'd have probably gone with an AMD 6-core setup instead.
 
appreciate your kind effort in giving relevant pointers. I am now on a more firm ground with respect to actual VT-D real-world examples.

As for my situation. I am on personal interest testing and not work-related, with limited fund, I lean toward least cost option knowing incoming SandyBridge/Bulldozer sockets change likely. If I could find a cheaper used system I will go for it. Honestly I just wish i5-650 could be much cheaper
 
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