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You can also use dual PCI-E Y-splitters on 2x 4870 on the 2008 MP. So far no power drain problems on GPUs doing 4 screens.

Not sure if anyone tested it on two 5870's. They idle 25w lower but also peak higher which might be bad for intense usage:eek:
 
You can also use dual PCI-E Y-splitters on 2x 4870 on the 2008 MP. So far no power drain problems on GPUs doing 4 screens.

Not sure if anyone tested it on two 5870's. They idle 25w lower but also peak higher which might be bad for intense usage:eek:

I put alot of thought into this when I did my 4870x2 setup. The PSU can handle it..Im trying to find the specs again as to how many Amps per rail it was. From that I determined efficiency and load on each rail, it did come close so the 5870 may have an adverse effect under load. I went the safe route of a secondary PSU which has proven to work well.
 
Who buys a Macpro to play video games :confused: LOL

Someone with more money than brains. For games only, get a Windoz machine.

Who are the people who rate articles like this negative that have nothing negative in them.

I literally don't get it.

They are attracted to bashing anything Apple. They know it will stir up some fans.

It might be worth noting, from barefeats.com →

"...(Caveat: the two Mini DisplayPorts on the 5870 are not supported on the 2006-2008 Mac Pro. If you only plan to use it with a single display, the remaining dual-link DVI connector will do the job.)..."

If I can't run two DVI monitors then this would be a deal-breaker for me.

Although I am not using two monitors, technically, my 8800 has one monitor and one 52-inch TV connected.

If this 5870 were to have the same capability (2 displays), it might make sense to spend $450 for double the size ... IF it actually performed that much better.

I "upgraded" the ATI2600 in my 8-core Mac Pro 2008 to the nVidia GT120, but I prefer ATI graphics cards so this is good news.

Just visited BareFeats, and saw the test of all the Mac Pros. Damn, the 12-core makes mine look like it's going backwards!

And you also noted the price of the 12-core machine?

Quote from the Apple Store:
"Compatibility:
* Requires Mac Pro (Mid 2010) or Mac Pro (Early 2009) with PCI Express 2.0 slot"


To me, that means Apple is saying it will only work with the 2009 or 2010 Mac Pros, ie. it will not work in anything else. I don't know where everyone is getting this "supported" terminology.

You have been reading the posts here. It's simple to understand that Apple cannot state that the 5870 will work with the 2008 machines when it is advertised as a card for the new models.

Those of us who have 1 primary workstation and would rather put the money into its performance, and then occasionally game on it.

My MP is for work, but I game on it too when I have time. If I'm going to drop more money into graphics (which i have to anyway thanks to a dead 8800) I'd rather drop more money in one place, have the openCL capability and still game on it without spending the money to upgrade *2* systems.

I'll be buying a 5870 most likely, *when they start selling them* ::grr::

Out of curiosity, did the 8800 simple stop functioning, or did a power surge get through to it?

My 2008 MP also has an 8800 card, but whenever a lightning storm approaches, I disconnect everything. The system costs too much to have to replace it. One close / in the yard lightning strike can fry absolutely every computer chip / microchip in every device in a house.
 
Those of us who have 1 primary workstation and would rather put the money into its performance, and then occasionally game on it.

My MP is for work, but I game on it too when I have time. If I'm going to drop more money into graphics (which i have to anyway thanks to a dead 8800) I'd rather drop more money in one place, have the openCL capability and still game on it without spending the money to upgrade *2* systems.

I'll be buying a 5870 most likely, *when they start selling them* ::grr::

Just buy them from NCIX or something like that, you dont have to buy from Apple. Do you?
 
8800

I am really hoping that the 5870 issue with dual monitors gets worked out. I really want to replace my 8800.

I have already burned through two 8800s, probably doing nothing more than what other Mac Pro owners do with theirs. I've been on the prowl for a newer different card, because I will not be surprised if the newish 8800 card I have in my Mac Pro currently fries in the not too distant future, although that would be okay with me.
 
You have been reading the posts here. It's simple to understand that Apple cannot state that the 5870 will work with the 2008 machines when it is advertised as a card for the new models.

What logic would that be? What prevents Apple from saying that it would work with the 2008 machines? Are you referring to greed from Apple's side? That they simply want you to buy new?

It's about respect for their customers. If it does work on the 2008 machine, then it should be clearly stated. It if doesn't work on older machines, the reason should also be clearly stated.
 
Mini DisplayPort -- Good News; 2006 MP -- Mixed

Two new developments overnight.

1. I tried a different display (23" LCD) on the 2008 and 2009 Mac Pro. The Mini DisplayPort *DOES* work on the both. Furthermore, I have reports from readers that the Mini DisplayPort works fine on their 2006 Mac Pro with the 4870. Therefore, I rescind my caveat that the Mini DisplayPort isn't compatible with the older Mac Pros.

2. I have access to a 2006 Mac Pro in a day or so. I'll be trying the 5870 on it. OWC has the 5770 working on their 2006 but the 5870 was a "no." Yet I have another source that says it is working reliably on their 2006. Seems like I remember there being a Boot ROM or SMC difference in the earliest Mac Pros that affected the ability to use the 4870 --- but that should also apply to the 5770. Also in 2007 the 8-core "2006" was released with a different Boot ROM or SMC version. Still digging.
 
Who buys a Macpro to play video games :confused: LOL

It's the other way around:
If you have a sweet Mac Pro for some reason, why not stick in a good gaming card and have fun too?
:rolleyes:

Me getting this baby for my 2008 2.8 :)

What surprises me is the performance of the 3.2 being faster in Portal than the Westmere 3.33..??? :confused:
 
Two new developments overnight.

1. I tried a different display (23" LCD) on the 2008 and 2009 Mac Pro. The Mini DisplayPort *DOES* work on the both. Furthermore, I have reports from readers that the Mini DisplayPort works fine on their 2006 Mac Pro with the 4870. Therefore, I rescind my caveat that the Mini DisplayPort isn't compatible with the older Mac Pros.

Thanks for all your testing - so are you saying that having one screen using the DVI connection, and a 2nd using a MDP->DVI adaptor will in fact work fine in a 2008 machine?
 
Why does the 08 Mac Pro get more performance than the six-core with this GPU?

Looking at the test-results, it seems that it gets better results when the game is GPU-limited. Like in WoW, where 2008 MP get 114FPS, while 2010 MP get 110. The difference is not that big, because the component that is the bottleneck (GPU) is same on both systems.

Then we have games like Doom3, where 2008 MP gets 123FPS, while 2010MP gets 186FPS. That's a sizable difference, and the reason is that the component that is the bottleneck (CPU) is different in the two.

EDIT: X-plane is another good example: 109FPS on the 2008MP, 194FPS on the 2010 MP. And flight-simulators are traditionally bottlenecked by the CPU.
 
Thanks for all your testing - so are you saying that having one screen using the DVI connection, and a 2nd using a MDP->DVI adaptor will in fact work fine in a 2008 machine?

Yes. I'll have a 24" LED Cinema in the lab tomorrow so I'll try it as the third alternative (direct MDP vs adapter).
 
hmmm

I think it's sad that these cards cost $100 more than the "PC" versions. I also think its funny that people are amazed that a computer with a better graphic card gives you better frame rates. It's not ALL about the CPU.......duh. I like apple and all, but they are pretty goofy when it comes to their mac pro line, i just don't get it.
 
I'm really curious as to why a 2008 8c 3.2Ghz MP gets better frame rates than a 2010 6c 3.3GHz MP?

The only difference I see is 8c>6c and perhaps dual CPU vs single CPU but I wouldn't think that core or cpu # would matter for these games.

I'm sure there is some sort of technical explanation as to why a slower clocked 2008 CPU outperforms a slightly faster clocked 2010 (Westmere) CPU? :confused: Can someone with more technical knowledge explain this?
 
So this is very exciting barefeats, thank you for doing the testing. I didn't notice a comment about this so I will ask. You say that the minidisplay ports do work with the 2008 mac pro, but do they all work ok if you connect 3 displays at once? Two minidisplayports and one dvi?
 
So this is very exciting barefeats, thank you for doing the testing. I didn't notice a comment about this so I will ask. You say that the minidisplay ports do work with the 2008 mac pro, but do they all work ok if you connect 3 displays at once? Two minidisplayports and one dvi?

I ran two 23" Cinemas on the 2008. I'll try a third one tomorrow when I get a 24" LED Cinema in the lab. I want to see if a display without the MDP to DVI adapter works just as well.
 
I think it's sad that these cards cost $100 more than the "PC" versions. I also think its funny that people are amazed that a computer with a better graphic card gives you better frame rates. It's not ALL about the CPU.......duh. I like apple and all, but they are pretty goofy when it comes to their mac pro line, i just don't get it.

Of course it's natural that better graphics-card drives up FPS. What people were wondering is the reason why two year old machine gets better results than state of the art machine does with identicaL GPU.
 
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