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MacOG728893

macrumors 68000
Original poster
Sep 10, 2010
1,715
114
Orange County CA
You probably know this already, but I'm very surprised to see this argument here: very few people hesitate between an iMac and a Mac Pro because they are very different machines. There are many very important differences between them, and CPU performance is just one; not even the most important.

I would take a more expensive Mac Pro running at 50% of an iMac any day, and I'm sure a lot of others would. If you don't need all the extra stuff from the Mac Pro, then go for the iMac...

Loa

I understand your point. I do prefer an actual desktop over an AIO though. I wish apple still made standard desktops with consumer CPU's.
 

deconstruct60

macrumors G5
Mar 10, 2009
12,298
3,893
What do you think the bench marks will be with a top of the line Haswell iMac vs. the bottom line SB-E's?

synthetic benchmarks focused on CPU? Or benchmarks based on getting workload done for real applications?

They'll be close on synthetics. Both the top end (max BTO config) Haswell iMac and entry SB-EP ( E5 1620 ) will cap out at 4 cores. On simplistic single threaded, purely loaded in L2 cache benchmarks the Haswell would probably win on incremental micro-architectural improvements. Going to a E5 1620 v2 (Ivy Bridge ) probably wouldn't really change that (probably still capped at 4 cores, but likely closer on max Turbo. )

Similar for any code that heavily leverages AVX. The memory bandwidth handicap (about 1/2 that of E5's ) again offset by micro-architecture improvements.


These will obviously be the closest in price, so I am hoping the SB-E entry level MacPro will at least have some advantage over Haswell or I don't see many people buying a $3500 MacPro that gets outperformed by $2500 iMac.

A $3500 Mac Pro isn't the entry level Mac Pro. Crossing $3K threshold there is a core count advantage. Again, if myopically focused on most affordable, maximized single threaded performance buying the Mac Pro is likely non-optimal.

A 2012 iMac with max CPU , Fusion Drive , max GPU is $2,599

A 2013 Mac Pro with E5 1620 , "roll your own Fusion Drive" , min GPU would probably come in about $2,799

Neither one of those are anywhere near $3500.

The latter would likely be much more well rounded performance. The GPU is likely substantially better and for $200 SSD Fusion component would comprise a higher percentage would be accelerated on SSD (e.g., 140-160 GB versus the 128 on iMac).
 

GermanyChris

macrumors 601
Jul 3, 2011
4,185
5
Here
It is not a unilateral decision for Apple to make. If few customers (relative to Mac Pro's long term historical track record) buy the 2013 Mac Pro it would be unlikely there would be an updated 2014 Mac Pro. Apple probably would EOL that 2013 model inside of a year, but that is besides the point. Another 2-3 span just on Sandy Bridge ( or even Ivy Bridge) won't be satisfactory as a product line.

The core issue is whether they return to a somewhat regular upgrade schedule. If they don't then it is extremely likely the product is going to die off sooner rather than later.

But yes. If they do a Socket 2011 Sandy Bridge model it would be quite easy from them to just a simple upgrade later with the exact same motherboard, tweaked firmware, and Ivy Bridge E5 v2 models later. So given "reasonably good" to "great" market adoption of the new 2013 model there probably would be a 2014 model.

Delaying to Ivy Bridge actually puts a bigger risk on just how long they'll give the Mac Pro market to prove itself. Waiting as long as possible to do the 2013 upgrade only implodes the core market of folks looking to stay on the Mac Pro substantially smaller. Additionally, the upgrade from Ivy Bridge to Haswell will require a new board. Thereby requiring another substantive R&D funding request as opposed to a much smaller low risk one. Depending on how badly AMD slides the E5 Haswell upgrade may slide another 1-2 quarters well into almost 2015. That would cause a Mac Pro slide and once more deliver a highly irregular product upgrade cycle. That in turn will drive away even more of the customer base.



There is a minimal cut off rate that Apple will do. Run rates of less than 100,00 are highly likely not viable. The notion that Apple "has to" continue the Mac Pro no matter how small the production rate is fundamentally flawed. Mac Pro's have to show growth just like every other Mac to be viable. Otherwise, it will be replaced by another Mac product line that will show long term growth.

I think I read somewhere that they are going to re-pin 2011 for Ivy-E
 

thekev

macrumors 604
Aug 5, 2010
7,005
3,343
I think I read somewhere that they are going to re-pin 2011 for Ivy-E

That would go against their normal cycle and force new board designs for Ivy E5s. You are most likely thinking of E7s (EX) which lacked a Sandy Bridge variant. They'd be re-pinned going from Westmere to Ivy.
 

rezwits

macrumors 6502a
Jul 10, 2007
811
414
Las Vegas
It's obvious they are other issues because there is no technical reason Apple could not have released a Mac Pro using Sandy Bridge-EP Xeons and Nvidia 600 or AMD 7000 graphic; i.e a Mac Pro using the most current hardware. That you can get OS X running on this hardware with a Hackintosh is testament to that.

The other issues will stem from the Mac Pro making barely any money compared to Apple's other desktop computer lines, let alone other businesses.

There have been rumours about the Mac Pro's cancellation coming from Apple sources, according to the Apple media circus, for years.

http://appleinsider.com/articles/11...reportedly_questioning_future_of_mac_pro.html

We know that Apple has limited talent that they move around. Why waste it to a line that will make tens of millions when others make billions? This is the problem facing the Mac Pro's survival. It's still enough part of the ecosystem that they won't can it yet, but it certainly wasn't a technology issue related to Sandy Bridge that prevented Apple updating it. They almost certainly chose not to for financial reasons.

I heard Apple sold around a million Mac Pros in 2010? or 2011? That didn't seem too bad. I thought it was more like 50,000 :p The way people talk...
 

Umbongo

macrumors 601
Sep 14, 2006
4,934
55
England
I heard Apple sold around a million Mac Pros in 2010? or 2011? That didn't seem too bad. I thought it was more like 50,000 :p The way people talk...

No way they sold a million. Maybe you heard the million figure in relation to Apple being able to build a million Macs at a 200 person plant in the US and the Mac Pro being a potential choice for that? A Fortune analyst said "Only the Mac Pro and mini sell fewer than 1 million per year, and the Mac Pro is considerably heavier and more expensive to ship".
 

cosmicjoke

macrumors 6502
Oct 3, 2011
484
1
Portland, OR
my guess is sandy bridge e xeons and radeon 7000 series, regardless of newer technology being around the corner (it always is)...

if it's anything to go on (and though it probably isn't), i think 10.6.6 beta drivers in dec. '10 had radeon 6000 support and then the new mbps w/ 6750m yadda were released in the end of february '11..

so my hope would be the same, we've seen driver support for 7000 series chips in 10.8.3 in Nov. I believe, maybe a new mac pro will arrive in the first few months of the new year.
 

cosmicjoke

macrumors 6502
Oct 3, 2011
484
1
Portland, OR
If they weren't doing any new design work they'd end up with exactly what they did.

Thunderbolt most likely means embedding a GPU onto the motherboard (or less likely the CPU/RAM daughterboard). That poses zero problems for the previous iMac (and its embedded discrete GPUs) . There is zero reason it would hold up a Mac Pro.

I don't think that the fact that an iMac has a discrete GPU soldered to it has anything to do with why it's more Thunderbolt capable... I think it's because the desktop processors have iGPUs... The framebuffer is copied from the discrete gpu to the iGPU and then output through the thunderbolt port on the logic board... This is how it's done on the PC thunderbolt motherboards at any rate with Lucid Virtu (there's some videos of JJ of Asus using a Thunderbolt Display with a GTX 680)...Since Xeons lack an iGPU, they have an engineering dilemma and very well could be the hold up. Will be interesting to see how TB is implemented, assuming it even is.
 

kendall69

macrumors regular
Sep 1, 2011
112
6
Better be BIG

With the last 3 - 4 iterations of the desktop being disappointing and given the LONG WAIT, it better be epic
 

deconstruct60

macrumors G5
Mar 10, 2009
12,298
3,893
I don't think that the fact that an iMac has a discrete GPU soldered to it has anything to do with why it's more Thunderbolt capable... I think it's because the desktop processors have iGPUs...

In so far as iGPUs mean there is display port signals being routed on the motherboard already and it isn't hard to do another set is the only causal correlation there.


The framebuffer is copied from the discrete gpu to the iGPU and then output through the thunderbolt port on the logic board...
This is how it's done on the PC thunderbolt motherboards at any rate with Lucid Virtu (there's some videos of JJ of Asus using a Thunderbolt Display with a GTX 680)

No. That isn't how it is used in general on PC TB boards, because Lucid Virtu isn't used in general. The virtual GPU solution is used when need to get a discrete card into the mix but that is not part of a Thunderbolt certification exercise.

Intel has been specific since Thunderbolt has been introduced that it is not oriented to PCI-e card solutions. It launched with no PCI-e card components are essential parts of a solution nor where they promised as forthcoming by Intel. PCI-e and display port signals on the same logic board as the TB controller we always part of the essential core requirements.


...Since Xeons lack an iGPU, they have an engineering dilemma and very well could be the hold up. Will be interesting to see how TB is implemented, assuming it even is.

There is zero engineering dilemma here. Display Port switches are sold off the shelf. Here is a TI one:

http://www.ti.com/product/hd3ss212

Apple doesn't use a virtual GPU like the Lucid Virtu solution. There is a copy when switching all the GPU work from iGPU to dGPU but they don't run in tandeem, nor is the output solely coupled to the iGPU.
 

deconstruct60

macrumors G5
Mar 10, 2009
12,298
3,893
I heard Apple sold around a million Mac Pros in 2010? or 2011? .

Million? No way, no how. The whole workstation market isn't even 4 million. For one 2011 quarter:

" ... All told, workstation vendors shipped about 932 thousand branded workstations, ... "
http://jonpeddie.com/publications/workstation_report/


Apple share of the workstation market isn't substantively different than there overall PC Market placement. Namely, overall in the 4-6% range with location pockets around 10% where there are much higher than average amonts of money spent per unit. About 100K is far more likely in the general ballpark than 1,000K.
 
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spoonie1972

macrumors 6502a
Aug 17, 2012
573
153
another architecture change seems due.

i mean, why have your current stuff work, right?

Rosetta MKII, on the way!
 

Phrygian

macrumors regular
Nov 26, 2011
196
0
you are a gamer correct?

build a PC gaming rig, and buy a mac book. Combined that will cost the same if not less than a 2013 MP.
 

scottrichardson

macrumors 6502a
Jul 10, 2007
698
273
Ulladulla, NSW Australia
There is zero engineering dilemma here. Display Port switches are sold off the shelf. Here is a TI one:

http://www.ti.com/product/hd3ss212

Apple doesn't use a virtual GPU like the Lucid Virtu solution. There is a copy when switching all the GPU work from iGPU to dGPU but they don't run in tandeem, nor is the output solely coupled to the iGPU.

Hey there. You seem to know a little more about the thunderbolt stuff than an average Joe like myself.. so.. may I ask how you think Apple may implement thunderbolt on a new Mac Pro? Would they have the thunderbolt ports on the back with the rest of the ports? If so, would they support outputting video that is sent via the PCIe GPUs? Or, will the GPU's have the Thunderbolt Ports?
 

deconstruct60

macrumors G5
Mar 10, 2009
12,298
3,893
Hey there. You seem to know a little more about the thunderbolt stuff than an average Joe like myself.. so.. may I ask how you think Apple may implement thunderbolt on a new Mac Pro?

The most straightforward way of doing it is to simply just copy what they did on the iMac. This isn't something Apply hasn't already done. Like the 2012 iMac, solder a decent GPU and VRAM right onto the motherboard. There is no need for a video switch since there is no video coming out of the IOHUB support chip ( which gets it from a mainstream Core i CPU package ).

[ there is some speculation Apple may not have hooked up CPU package on the lower iMacs anyway since they are just Intel HD2500 ( not even HD400) packages. In that case it would be exactly like they did on the iMac. ]

The Mac Pro would be different from the iMac but it would still have 3-4 PCI-e slots. (likely 4). In that sense system is different in that the user can add a 2nd video card and use both in parallel. In fact, the standard config might just come that way with two GPUs installed by default.

What folks seem to be getting their underwear in a twist over is getting all 2 or more GPUs to pump video data over Thuderbolt. It isn't necessary now when have 2-4 video cards. Should really be necessary when have just one embedded GPU.


Would they have the thunderbolt ports on the back with the rest of the ports?

Two ports just like the iMac. [ there may be some other ports on front USB 3.0 and/or Firewire , but not Thunderbolt. Most likely will loose two legacy ports off the back and replaced with TB. Whether those move to front or disappear is a toss-up. ]


If so, would they support outputting video that is sent via the PCIe GPUs? Or, will the GPU's have the Thunderbolt Ports?

No.

No TB ports on PCI-e card. It is theoretically possible but not practical market wise. Lots of design and certification complexity for extremely limited gains for what would likely be a highly proprietary card.

No virtual GPU because I don't think Apple or graphics makers will allocate the resources. Some third party may step in, but not no 3rd party enhanced/solved the embedded+discrete "at the same time" problem on the laptops. I doubt the much smaller Mac Pro market would draw one of those virtual GPUs vendors in.

Nor does Apple put time into supporting SLI/Crossfire. Again complexity that Apple avoids.


A discrete GPU PCI-e card is perfectly capable of hooking to a monitor by itself. There is extremely narrow added benefit of rerouting that output through Thunderbolt into yet another cable. (stuff like locating the Mac Pro 10 yards away from the monitor and a "need" for fiber Thunderbolt is just appealing to tiny corner case contexts. ) For normal cable lengths hooking to a general monitor is cheaper to just use the normal connections already present on both card and monitor.
 
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