Apple's Mac Pro - A True PowerMac Successor
by Anand Lal Shimpi on August 16, 2006 12:27 PM EST- Posted in
- Mac
iLife '06 Performance with iPhoto, iMovie HD and iDVD
One of the benefits of OS X and Apple's application suites is that most of the applications are already properly threaded. Even though you wouldn't expect it, iPhoto is threaded quite well and thus our import photos test gets a speedup from going to quad cores.
The test is simple; we timed the import of 379 photos into iPhoto which, believe it or not, is quite CPU intensive and not as I/O bound as you'd think. After we got the time we divided it into 379 to get the number of pictures imported per second. We included the performance of a hypothetical dual core Mac Pro in addition to the native quad offerings in order to provide a good point of comparison to the dual processor PowerMac G5s.
Although there's a slight performance boost when going from dual to quad core (6.9%), this test is largely dependent on clock speed within a single microprocessor architecture. Comparing the Woodcrest based Xeons to the older G5s is no contest, at 2.0GHz the Mac Pro is already 14% faster than the 2.5GHz PowerMac G5; even if we account for the dual vs. quad core comparison, the 2.0GHz Mac Pro is still noticeably faster than the G5.
The next application we looked at was iMovie HD. There are two primary focuses for performance in iMovie HD, video import speed (if you are dealing with a non-DV or non-iSight video source) and effect rendering speed. We focused on the latter, measuring the time it takes to render the most CPU intensive transition and video effect in iMovie HD.
Our Macs have gotten a little too fast for the billow transition test, as the Mac Pro 2.66GHz can now complete the test in 3 seconds flat. All of the Mac Pros here are faster than the PowerMac G5s, which is what we'd expect given what we learned in the iMac Core Duo vs. iMac G5 article.
Rendering the "Electricity" Video FX sees no benefit going from dual to quad cores, but the Mac Pro doesn't need it as the 2.0GHz configuration is already 26.5% faster than the PowerMac G5 2.5GHz.
Finally we've got iDVD, an application that you can use to create DVDs that are playable on any consumer DVD player. There are once again two aspects to performance in iDVD, video encoding performance and menu encoding performance. Since we've already looked at video encoding performance with Quicktime, this test is predominantly limited by how long it takes to encode the menu system in our test DVD. There is a small 13 second iSight video and audio that's encoded in the process but it adds a matter of seconds to the overall time. The image is written to disc instead of sent to the DVD burner for obvious reasons. The results are expressed in seconds, lower being better. This workload is multithreaded.
The benchmark gets just under 11% thanks to the 4 cores in the Mac Pro, but even without them the Mac Pro 2.66GHz is able to outperform the PowerMac G5 2.5GHz by just under 13%. The Xeon seems to scale much better with clock speed in this test than the G5.
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DigitalFreak - Wednesday, August 16, 2006 - link
Is there a 64bit version of OS X for the Intel platform? I didn't think there was, considering that until now all of the Intel Macs have only had 32bit processors.kelmon - Thursday, August 17, 2006 - link
Depends on what you mean by 64-bit. OS X has, I believe, had a 64-bit UNIX layer since 10.3 (I don't think it was introduced with 10.4) but the only applications that can take advantage of this are command-line tools. Leopard will introduce 64-bit everywhere but I'm still struggling to find a reason why that will impact me in a good way. That said, the new Mac will have a 64-bit processor so that I can feel future-proof.Pirks - Wednesday, August 16, 2006 - link
Good question. I don't know, maybe OS X on those Mac Pros is patched to 64-bit or something.. if not than I should shut up and wait till Leopard.Snuffalufagus - Wednesday, August 16, 2006 - link
it should factor in at least a 25% - 35% discount code on the Dell :).I have never bought anything off the Dell site without getting a substantial discount from a current promotion.
trivik12 - Wednesday, August 16, 2006 - link
Does Dell offer 25-35% off for Dell Precision Workstation?MrPIppy - Wednesday, August 16, 2006 - link
The last generation of Power Mac G5s also had dual GigE ports: http://www.apple.com/powermac/specs.html">Apple's G5 specs pageOne difference though, the G5s (and the GigE G4s before them) used Broadcom 57xx chips for Ethernet, while the Mac Pro now uses an Intel 8254x chip.
Josh7289 - Wednesday, August 16, 2006 - link
But what is so good about Macs? Why would I want a Mac instead of a PC? What can a Mac offer me that a PC can't? I don't like trolling, but I seriously am asking these questions and want to know what the answers are.phaxmohdem - Wednesday, August 16, 2006 - link
I used to be a mac hater because All the macs I've ever used truely were Pieces of $h!t. Old single cpu G4 towers with no Hard Drive Space or RAM, and way too much student crap spread on them. HOWEVER recently I had the pleasure of using a REAL mac (Quad G5) for a video project, and it made me think of macs a little differently. Plenty fast, and stable. My biggest problems were learning all the new Mac hot keys and keyboard shortcuts.. but once you master those you'll fly on the mac. (Some of Macs shortcuts still seem pretty stupid and complex to me though).However I serioualy don't understand the keyboard and mouse that Apple gives their cusotomers... The new mighty mouse is an improvement, but still an uncomfortable POS to me. Ditto for the mushy fugly keyboard that is standard. I've found that a proper Logitech (or similar) Kybd/Mouse combo makes the mac experience feel 10x better. (One more side-gripe... OS X does not have adjustments for mouse acceleration, and for me the stock acceleration speeds are wretched and piss me off... Hopefully this is something to be updated in the next release of the OS)
So, moral of my story is... if you're going to Mac it up, do it right with proper input devices and some decent specs, and you'll have an enjoyable experience under OS X. I personally still choose Windows for its versatility w/ software and hardware... but to each his own.
Maury Markowitz - Thursday, August 17, 2006 - link
Agree. I find it somewhat ironic that the only MS products I really like are their keyboards, mice, and joysticks. What's particularily maddening is that Apple used to, years ago, make the best keyboard money could buy. Seriously, solid as a rock and typing feel you'd kill for. Now they peddle crap that looks nice. Not good.timelag - Thursday, August 17, 2006 - link
Apple used to, years ago, make the best keyboard money could buy.Ah yes, the extended keyboard II. Better even than the famous IBM and Sun keyboards of yore. If it weren't for my Kinesis (the One True ergo keyboard), I'd be using mine through an ADB to USB connector.