AMD's Phenom Unveiled: A Somber Farewell to K8
by Anand Lal Shimpi on November 19, 2007 1:25 AM EST- Posted in
- CPUs
Overclocking
Given the launch frequencies, you can expect that Phenom isn't a tremendously overclockable chip.
While we were able to run our 2.4GHz chip at 3.0GHz, we couldn't get it stable. Even 2.8GHz wasn't entirely stable, but 2.6GHz was attainable for benchmarks.
AMD's OverDrive Utility, note that it reads the memory controller as single channel because Phenom actually has two independent 64-bit memory controllers instead of a single 128-bit one. Current BIOSes and the AMD utility incorrectly report this as being single-channel.
All of our overclocking was done using AMD's nifty new OverDrive utility, which is a Windows utility that can control virtually every single BIOS option from within your OS. You can overclock individual cores, change memory timings, voltages and most importantly: it all works.
The application is a little slow to respond when making changes and it would be nice if there was a hotkey to bypass the application loading its last settings, but it's truly a beauty to work with and one of the best aspects of today's launch.
The Test
| CPU: | AMD Phenom 9900 (2.6GHz) AMD Phenom 9700 (2.4GHz) AMD Phenom 9600 (2.3GHz) AMD Phenom 9500 (2.2GHz) Intel Core 2 Quad Q9450 (2.66GHz/1333MHz) Intel Core 2 Quad Q6700 (2.66GHz/1066MHz) Intel Core 2 Quad Q6600 (2.40GHz/1066MHz) |
| Motherboard: | ASUS P5E3 Deluxe (X38) MSI K9A2 Platinum (790FX) |
| Chipset: | Intel X38 AMD 790FX |
| Chipset Drivers: | Intel 8.1.1.1010 (Intel) AMD 790FX Launch Drivers |
| Hard Disk: | Western Digital Raptor 150GB |
| Memory: | Corsair XMS2 DDR2-800 4-4-4-12 (1GB x 2) Corsair XMS3 DDR3-1066 7-7-7-20 (1GB x 2) |
| Video Card: | NVIDIA GeForce 8800 GTX |
| Video Drivers: | NVIDIA ForceWare 169.09 |
| Desktop Resolution: | 1920 x 1200 |
| OS: | Windows Vista Ultimate 32-bit |
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Iketh - Wednesday, November 21, 2007 - link
damn where is the rating system??!!strikeback03 - Wednesday, November 21, 2007 - link
If you read the graphs, you will see they are testing total system power draw. Typically they test at the wall with a Kill-A-Watt meter, though this article does not explicitly state that.Assuming the other components were the same between systems, this number then shows the difference in Processor + chipset power consumption between the platforms.
Barcelona is the name of the server processor, ( http://www.anandtech.com/IT/showdoc.aspx?i=3099">http://www.anandtech.com/IT/showdoc.aspx?i=3099 ) is one test. Intel power consumption is pretty much screwed by use of the FB-DIMMs.
cyborgtrader - Monday, November 19, 2007 - link
The comments on this topic were great. AMD really let us down on this one. I trade Intel stock, but only buy AMD chips and today I am so dissapointed. I hope AMD read these reviews and get their act together. Patience is a virtue, so I am going to wait for another review after better yeilds have been produced. Guess I can tuck my cash back into my wallet.mmmm, Maybe AMD was joking with this chip. Could Santa be delivering the real Quad? With this reveiew we better hope so.
ct
eye smite - Tuesday, November 20, 2007 - link
I hope all of you choke on your comments. You're completely judging amd on pre production samples that will all mature and give more accurate benchmarks by the time they hit stores. No it's not a core 2 killer but amd never planned for it to be. They laid out a road map some time back and are following it as best they can with the resources they have. It's the first native quad core, intel can't say that. It's brand new, so it's full potential hasn't been seen and probably fully developed yet. You gobshites are just like the rest of America I have to live with everyday and want it NOW. You sound like a bunch of 2 yr olds screaming mine mine.strikeback03 - Wednesday, November 21, 2007 - link
Anand stated that AMD has promised availability by the end of the week, so unless they shipped him below-average samples to test, this is indeed representative of what will hit stores at first. AMD may or may not have planned it as a Core 2 killer, but if Intel outperforms them on speed and power usage at the same prices, who is gonna buy AMD? Being the first native quad-core is an interesting Trivial Pursuit fact, but it won't win many sales unless performance goes up or price goes down.Screammit - Wednesday, November 21, 2007 - link
All we can do as consumers is make educated choices based on the information we can get.Your arguement is "wait and see," which is not a bad position to take, but this is the first TANGIBLE evidence of what AMD can do with its new chips, which most of us have been waiting over a year for. The information we have right now says that the current best AMD quad core chip can't compete in performance with the slowest intel based quad core, which if our information is correct, will cost the same.
By comparison, you can see the first time Anand got a hand on a test sample of Conroe, the results eventually foreshadowed real world performance:
casket - Tuesday, November 20, 2007 - link
I wonder what happened on this test?http://www.tomshardware.com/2007/11/19/the_spider_...">http://www.tomshardware.com/2007/11/19/the_spider_...
Iketh - Thursday, November 22, 2007 - link
the same way cpuz showed the phenom as single-channel memory, this sandra test is probably showing the result from 1 of the memory controllers... thus both channels together are undoubtedly pumping out 10000+, which makes a LOT more sensesdmock - Tuesday, November 20, 2007 - link
So apparently AMD's chips have higher memory bandwidth for integers and FPs. But so what if it ain't faster?stmok - Monday, November 19, 2007 - link
I've waited for Phenom as a potential upgrade to my current three systems (Socket 754 Semprons, AMD64).