AMD "Phenom" cpu?

Donald A. Tevault
Donald A. Tevault
Joined: 17 Feb 06
Posts: 439
Credit: 73,516,529
RAC: 0

RE: Hmmm... I'm thinking

Message 75868 in response to message 75866

Quote:

Hmmm...

I'm thinking of building a new system with a 9600 Phenom.

On one hand, there is the TLB bug. But that seems to be contained and I haven't heard even one report of it being hit. The TLB fix, on the other hand, does significant performance damage according to the numerous reviews I have read. Poor WinRAR still isn't walking straight!

Then again, Intel's offering in that performance range is the Q6600, and it appears that I'd have to spend another hundred dollars between the CPU and motherboard to get the equivalent offering.

Plus there is the overclocking issue, which is something I like to do. It appears that the Q6600 has the leading edge over the Phenom 9600 [black too] when you take into account the wild variation in what you can get out of a Phenom.

But then again, I'm building a /small/ system with a uATX board. I can't OC too much on either side of the aisle because I don't know how well my uATX case will fare when I have a quad core CPU mixed in with an 8800 GTS, three harddrives, and an optical drive.

Methinks I'll go with the AMD Phenom. Folks have had release & engineering samples for months now, and the basic consensus seems to be disappointment from high expectations plus frustration with TLB issues. I can live with that.

If you really have your heart set on a Phenom, at least wait for a couple of months. The B3 stepping version will be out, which will fix the TLB bug.

I've also seen some reports about how some Phenom's have had to be returned due to having one bad core. Perhaps this issue will also be fixed with B3.

Akos Fekete
Akos Fekete
Joined: 13 Nov 05
Posts: 560
Credit: 4,510,638
RAC: 0

RE: If you really have your

Message 75869 in response to message 75868

Quote:
If you really have your heart set on a Phenom, at least wait for a couple of months. The B3 stepping version will be out, which will fix the TLB bug.


I think this "TLB bug" isn't a real problem. It appears only on the highest frequencies, but I never could produce it on my P9600.

rbpeake
rbpeake
Joined: 18 Jan 05
Posts: 247
Credit: 219,266,664
RAC: 0

RE: RE: I'm thinking of

Message 75870 in response to message 75867

Quote:
Quote:
I'm thinking of building a new system with a 9600 Phenom.

I suggest Core2 for crunching Einstein@Home.


I concur. My dual-core E8500 works extremely well (very fast) and overclocks nicely to about +17% with just air cooling.

th3
th3
Joined: 24 Aug 06
Posts: 208
Credit: 2,208,434
RAC: 0

RE: Then again, Intel's

Message 75871 in response to message 75866

Quote:
Then again, Intel's offering in that performance range is the Q6600, and it appears that I'd have to spend another hundred dollars between the CPU and motherboard to get the equivalent offering.


Its not in the same performance range, higher performance makes up most of the higher price for the Intel.
http://www.xbitlabs.com/articles/cpu/display/core2quad-q9300_8.html
(and the next few pages)

Quote:

But then again, I'm building a /small/ system with a uATX board. I can't OC too much on either side of the aisle because I don't know how well my uATX case will fare when I have a quad core CPU mixed in with an 8800 GTS, three harddrives, and an optical drive.


The lower power cunsumption of the Intels should make a difference then. 40 watts lower load consumption would also translate into higher overclocking headroom (with the right µATX mainboard, Gigabyte G33s are good OC'ers at very reasonable prices).
http://www.xbitlabs.com/articles/cpu/display/core2quad-q9300_13.html

Sounds like you really want AMD and then maybe Intel will not "feel right". I just wanted to point out that they are not in the same performance class at stock, and you seem to know already that Intel is vastly superior when overclocked. Higher performance vs brand loyalty.

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1,000,560
RAC: 0

I ordered: one AMD agena 9600

I ordered:
one AMD agena 9600 black
one Asus M3A mobo
two sets 2x1 corsair xms2 DDR2 ram 1066
cheap pci 2.0 x16 video card.
artic cooler freezer pro 64

should be here Wednesday/Thursday.

I also ordered the psu, ram, hard drive and nick knacks to build a Q6600 when I get my next check. I'll then order the asus P5K-VM mobo, Q6600, 2 sticks of the same ram as ordered for the 9600, and an artic cooler freezer pro 7

so, the ram, hard drive and psu will be identical between both.

Donald A. Tevault
Donald A. Tevault
Joined: 17 Feb 06
Posts: 439
Credit: 73,516,529
RAC: 0

RE: RE: If you really

Message 75873 in response to message 75869

Quote:
Quote:
If you really have your heart set on a Phenom, at least wait for a couple of months. The B3 stepping version will be out, which will fix the TLB bug.

I think this "TLB bug" isn't a real problem. It appears only on the highest frequencies, but I never could produce it on my P9600.

Yeah, that's true. But, the real problem isn't the TLB bug itself. The problem is more with the BIOS fix for the TLB problem, which kills performance.

Winterknight
Winterknight
Joined: 4 Jun 05
Posts: 482
Credit: 125,351,099
RAC: 164,395

RE: I ordered: one AMD

Message 75874 in response to message 75872

Quote:

I ordered:
one AMD agena 9600 black
one Asus M3A mobo
two sets 2x1 corsair xms2 DDR2 ram 1066
cheap pci 2.0 x16 video card.
artic cooler freezer pro 64

should be here Wednesday/Thursday.

I also ordered the psu, ram, hard drive and nick knacks to build a Q6600 when I get my next check. I'll then order the asus P5K-VM mobo, Q6600, 2 sticks of the same ram as ordered for the 9600, and an artic cooler freezer pro 7

so, the ram, hard drive and psu will be identical between both.


Tony,
And your reasons to "her who must be obeyed" this time was? :-)

I've just ordered delivery due today (Tues):
Gigabyte GA P35C-DS3R, iP35 Express mobo
520W Coolermaster Real Power PSU
Intel Core 2 Quad-Core Q6600 G0
2GB (2x1GB) Corsair TwinX DDR2 XMS2
Thermalright IFX-14 120/140mm heatsink

Other components will be rejects from upgrades to other peoples computers.

Andy

Akos Fekete
Akos Fekete
Joined: 13 Nov 05
Posts: 560
Credit: 4,510,638
RAC: 0

RE: Yeah, that's true.

Message 75875 in response to message 75873

Quote:
Yeah, that's true. But, the real problem isn't the TLB bug itself. The problem is more with the BIOS fix for the TLB problem, which kills performance.


It needs to modify only two model specific registers in kernel mode. (after each start)
Howto disable the tlb-fix

Astro
Astro
Joined: 18 Jan 05
Posts: 257
Credit: 1,000,560
RAC: 0

RE: Tony, And your reasons

Message 75876 in response to message 75874

Quote:


Tony,
And your reasons to "her who must be obeyed" this time was? :-)

Andy


I obeyed....
I only ordered ONE quad core. It wasn't two quads. OK...so it was one quad and 1/2 the bits for the second........and next week I'll just say "I needed to order a few more things that when combined with stuff I "already have" will get me a whole new computer (OK,...I won't say that the bits I "already have" were included in this weeks shipment"). "sheesh, honey, for only 400 bucks,,,I got an entire computer, What a deal...huh???" "can I shop or what???" I already prepped her a week ago by saying "You know I really wanted this computer, but I just can't see spending the money.....I priced it and it came out to $1200 bucks, so I didn't order it". (of course it really only came out to 900, but I added the fluff for the bits). Then she said "just order it", and I said "I'll go back and see if I can get rid of or find a cheaper replacement. Remember,,,this was last week.... So, Saturday when I placed the order... I said "I ordered my computer". She said "good" and she's so far said nothing else..

It's my hope that the younger married men in attendance, might learn something from my story....LOL

WARNING
The "already have" scheme only works if you already have LOTS of computer looking bits laying around to confuse her eye. It won't work if you only currently have one/two computers

Donald A. Tevault
Donald A. Tevault
Joined: 17 Feb 06
Posts: 439
Credit: 73,516,529
RAC: 0

RE: RE: Yeah, that's

Message 75877 in response to message 75875

Quote:
Quote:
Yeah, that's true. But, the real problem isn't the TLB bug itself. The problem is more with the BIOS fix for the TLB problem, which kills performance.

It needs to modify only two model specific registers in kernel mode. (after each start)
Howto disable the tlb-fix

So, does your performance testing reflect having the BIOS fix disabled?

Comment viewing options

Select your preferred way to display the comments and click "Save settings" to activate your changes.