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[OFFICIAL] FX-8320/FX-8350 Vishera Owners Club - Page 5093

post #50921 of 67694
Quote:
Originally Posted by Agent Smith1984 View Post

Quote:
Originally Posted by Liranan View Post

Not once in the past twenty years have I been lucky with the lottery.
The only time I've complained about a chip being bad is when I've killed it biggrin.gif

I clocked my old Q6600 to 3.2 when others were getting 3.7 but I was happy with it nonetheless but, like all Intel CPU's I've overclocked it died after 1.5 year. My 955BE lasted me five years before I replaced it. It's still working in a friend's PC.

Those Phenom's were terrible clockers and mine could only do 3.5 from 3.2 at 1.375V, which is excessive. I thought a CHV would get me higher results but the damned CPU just wouldn't clock to 3.6 stable.

You think that's bad?

My son's propus only clocks to 3.8GHz with the 4th core enabled, and it takes 1.575v to get it there!! tongue.gif

She never breaks 52c under load though, and it's been running that way for a while.

It takes every MHz that thing can squeeze to push his 7950.
Hey that wasn't bad for Propus. The limit was in the 3.8-3.9 region for most Propus Athlon's. Mine did 3.9GHz at 1.55V. It was an Athlon 2 645. Loved that chip. wubsmiley.gif
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post #50922 of 67694
Quote:
Originally Posted by Alastair View Post

Quote:
Originally Posted by Agent Smith1984 View Post

Quote:
Originally Posted by Liranan View Post

Not once in the past twenty years have I been lucky with the lottery.
The only time I've complained about a chip being bad is when I've killed it biggrin.gif

I clocked my old Q6600 to 3.2 when others were getting 3.7 but I was happy with it nonetheless but, like all Intel CPU's I've overclocked it died after 1.5 year. My 955BE lasted me five years before I replaced it. It's still working in a friend's PC.

Those Phenom's were terrible clockers and mine could only do 3.5 from 3.2 at 1.375V, which is excessive. I thought a CHV would get me higher results but the damned CPU just wouldn't clock to 3.6 stable.

You think that's bad?

My son's propus only clocks to 3.8GHz with the 4th core enabled, and it takes 1.575v to get it there!! tongue.gif

She never breaks 52c under load though, and it's been running that way for a while.

It takes every MHz that thing can squeeze to push his 7950.
Hey that wasn't bad for Propus. The limit was in the 3.8-3.9 region for most Propus Athlon's. Mine did 3.9GHz at 1.55V. It was an Athlon 2 645. Loved that chip. wubsmiley.gif

Late batch Propus on stock cooling, pretty impressive little quad - http://hwbot.org/submission/2319460_cssorkinmanocn_cpu_frequency_phenom_ii_x4_840_4613.9_mhz
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post #50923 of 67694
Quote:
Originally Posted by cssorkinman View Post

Quote:
Originally Posted by Alastair View Post

Quote:
Originally Posted by Agent Smith1984 View Post

Quote:
Originally Posted by Liranan View Post

Not once in the past twenty years have I been lucky with the lottery.
The only time I've complained about a chip being bad is when I've killed it biggrin.gif

I clocked my old Q6600 to 3.2 when others were getting 3.7 but I was happy with it nonetheless but, like all Intel CPU's I've overclocked it died after 1.5 year. My 955BE lasted me five years before I replaced it. It's still working in a friend's PC.

Those Phenom's were terrible clockers and mine could only do 3.5 from 3.2 at 1.375V, which is excessive. I thought a CHV would get me higher results but the damned CPU just wouldn't clock to 3.6 stable.

You think that's bad?

My son's propus only clocks to 3.8GHz with the 4th core enabled, and it takes 1.575v to get it there!! tongue.gif

She never breaks 52c under load though, and it's been running that way for a while.

It takes every MHz that thing can squeeze to push his 7950.
Hey that wasn't bad for Propus. The limit was in the 3.8-3.9 region for most Propus Athlon's. Mine did 3.9GHz at 1.55V. It was an Athlon 2 645. Loved that chip. wubsmiley.gif

Late batch Propus on stock cooling, pretty impressive little quad - http://hwbot.org/submission/2319460_cssorkinmanocn_cpu_frequency_phenom_ii_x4_840_4613.9_mhz
Well I was on a Hyper 212 so yeah.
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post #50924 of 67694
Quote:
Originally Posted by mus1mus View Post

Wait a minute, aren't you the one who said this?
Anyways,
sometimes you gotta accept the fact that some of these chips were just power hogs! IBT Stable? Nope sir. Wanna guess how much that will take on the cores? biggrin.gif



not exactly no improvement...it's hard to tell at all faster ram in some things... while others it's rather like night and day of a difference.
you tell me?
post #50925 of 67694
Quote:
Originally Posted by Johan45 View Post

Dog chips are out there but most of them were in the older batches. An 8320 is lower down the pole and only guarenteed to go so fast. and they're binned accordingly. Sometimes you get a really good one but the chances drop as the model drops. Here's a pic of my first 8350 and I called it my little piggy.

LL


Here's a big pig LOL!!!



I didn't even come close to the silicon lottery.
post #50926 of 67694
Thread Starter 
Quote:
Originally Posted by Johan45 View Post

Quote:
Originally Posted by Liranan View Post

Quote:
Originally Posted by Johan45 View Post

Agent smith is correct the Thuban does have a much better IPC than the FX . Here's a couple subs to show the difference.

http://hwbot.org/submission/2881582_johan45_cinebench___r11.5_phenom_ii_x6_1090t_be_9.35_points

Here's the FX 6350 at about the same speed
http://hwbot.org/submission/2420832_johan45_cinebench___r11.5_fx_6350_6.85_points/

And here's the 6350 at 1.2G faster than the thuban. and it still can't keep up.

http://hwbot.org/submission/2809989_johan45_cinebench___r11.5_fx_6350_8.38_points/

Cinebench 11.5 is unreliable due to the way it discriminates against the BD uArch.

15 Is more reliable.

OK here's R15, the only time the FX beats the Thuban is when the FX can take advantage of newer instructions.

http://hwbot.org/submission/2881583_johan45_cinebench___r15_phenom_ii_x6_1090t_be_797_cb
http://hwbot.org/submission/2809993_johan45_cinebench___r15_fx_6350_767_cb
http://hwbot.org/submission/2510879_johan45_cinebench___r15_fx_6350_673_cb/

I fail to understand why you are running an obviously well threaded test on only a PD Hex.

PD's shortcomings compared to the Thuban are not strictly IPC. You are choosing to run 3 modules. PD had a decoder limit that only lets each core operates at 80% capacity when both sides are under full load, which effectively limit the PD chip to a "4.8 core". Combined with the small (about 10%) IPC difference in favor of the Thuban chip, it will allow the Thuban to win in this enviornment.

However, this decoder limitation only applied to multithreaded workloads.

In a situation where you would like to use multithreaded applications, anything that can use six cores can use eight. Due to this, there is little reason to chose the PD Hex except when going for serious budget rigs, where you won't be OCing anything to it's limits. Once you get up to 8 cores, it becomes a "6.4 core" in fully threaded loads, effectively removing Thuban's IPC advantage and just out running it in pure clock speed alone.

In a situation where you may only use 4 threads at most, a PD Octa is still the proper option over a PD Hex as it's 4 modules allow for all four cores chosen to run at full speed as it splits the load. If you do not plan to overclock, PD's half-core turbo is better than Thubans 4-core turbo, in addition to the already much higher clock speeds. In an environment where you do plan to overclock, PD's again massive clock lead will continue to hold it well over Thuban's small IPC lead.

In a situation where you are using one thread... Well, again, clock speed difference is much higher than the IPC difference.

In pretty much any other CPU intensive load, the additional instruction sets take over and any IPC lead the Thuban had goes out the window as Phenom's instruction sets were truly pitiful, even for the time. Not even proper SSE4 support.

Agent Smith is considerably off however. Thuban does not have much more than a 10% IPC lead, and certainly not 20%. This has been tested repeatedly.

In fact, your same-clock test shows this to be accurate (+10% for IPC, +25% for not having decoder limits). Your 6.4Ghz test also shows near perfect scaling on the PD chip, all the way up. 22.36% clock increase, 22.34% score increase. Getting a PD Octa into the ring would have put the PD at a rough tie at same clock (+33% multicore bonus) and obliterated the Thuban after the additional clocks.

The only problem with your tests is that they can not be 24/7. Very few Thubans go past 4Ghz, and every PD chip I've seen can pass 4.5Ghz, which robs Thuban of it's IPC advantage instantly, and there is no situation that takes advantage of only 5-6 cores while ignoring 7 and 8.
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post #50927 of 67694
Quote:
Originally Posted by KyadCK View Post

Quote:
Originally Posted by Johan45 View Post

Quote:
Originally Posted by Liranan View Post

Quote:
Originally Posted by Johan45 View Post

Agent smith is correct the Thuban does have a much better IPC than the FX . Here's a couple subs to show the difference.

http://hwbot.org/submission/2881582_johan45_cinebench___r11.5_phenom_ii_x6_1090t_be_9.35_points

Here's the FX 6350 at about the same speed
http://hwbot.org/submission/2420832_johan45_cinebench___r11.5_fx_6350_6.85_points/

And here's the 6350 at 1.2G faster than the thuban. and it still can't keep up.

http://hwbot.org/submission/2809989_johan45_cinebench___r11.5_fx_6350_8.38_points/

Cinebench 11.5 is unreliable due to the way it discriminates against the BD uArch.

15 Is more reliable.

OK here's R15, the only time the FX beats the Thuban is when the FX can take advantage of newer instructions.

http://hwbot.org/submission/2881583_johan45_cinebench___r15_phenom_ii_x6_1090t_be_797_cb
http://hwbot.org/submission/2809993_johan45_cinebench___r15_fx_6350_767_cb
http://hwbot.org/submission/2510879_johan45_cinebench___r15_fx_6350_673_cb/

I fail to understand why you are running an obviously well threaded test on only a PD Hex.

PD's shortcomings compared to the Thuban are not strictly IPC. You are choosing to run 3 modules. PD had a decoder limit that only lets each core operates at 80% capacity when both sides are under full load, which effectively limit the PD chip to a "4.8 core". Combined with the small (about 10%) IPC difference in favor of the Thuban chip, it will allow the Thuban to win in this enviornment.

However, this decoder limitation only applied to multithreaded workloads.

In a situation where you would like to use multithreaded applications, anything that can use six cores can use eight. Due to this, there is little reason to chose the PD Hex except when going for serious budget rigs, where you won't be OCing anything to it's limits. Once you get up to 8 cores, it becomes a "6.4 core" in fully threaded loads, effectively removing Thuban's IPC advantage and just out running it in pure clock speed alone.

In a situation where you may only use 4 threads at most, a PD Octa is still the proper option over a PD Hex as it's 4 modules allow for all four cores chosen to run at full speed as it splits the load. If you do not plan to overclock, PD's half-core turbo is better than Thubans 4-core turbo, in addition to the already much higher clock speeds. In an environment where you do plan to overclock, PD's again massive clock lead will continue to hold it well over Thuban's small IPC lead.

In a situation where you are using one thread... Well, again, clock speed difference is much higher than the IPC difference.

In pretty much any other CPU intensive load, the additional instruction sets take over and any IPC lead the Thuban had goes out the window as Phenom's instruction sets were truly pitiful, even for the time. Not even proper SSE4 support.

Agent Smith is considerably off however. Thuban does not have much more than a 10% IPC lead, and certainly not 20%. This has been tested repeatedly.

In fact, your same-clock test shows this to be accurate (+10% for IPC, +25% for not having decoder limits). Your 6.4Ghz test also shows near perfect scaling on the PD chip, all the way up. 22.36% clock increase, 22.34% score increase. Getting a PD Octa into the ring would have put the PD at a rough tie at same clock (+33% multicore bonus) and obliterated the Thuban after the additional clocks.

The only problem with your tests is that they can not be 24/7. Very few Thubans go past 4Ghz, and every PD chip I've seen can pass 4.5Ghz, which robs Thuban of it's IPC advantage instantly, and there is no situation that takes advantage of only 5-6 cores while ignoring 7 and 8.

A lot of things confuse people about the relative performance of Thuban vs Vishera - super pi scores without the conditioner and firestrike's combined test scoring for the PD are a couple of examples.
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post #50928 of 67694
Sadly my RAM hates being OC'd, something I'd forgotten. Even 220MHz causes the PC to BSOD and at 240 the system won't even boot up unless the RAM is set to no higher than 1600. Timings are still on Auto but it just doesn't work sadly. RAM doesn't bother me that much as it doesn't make much difference anyway.
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post #50929 of 67694
The ratio b/n phenom and Piledriver is 1.095:1 in favor of Phenom, so 4.2ghz PhII=4.6ghz PD
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post #50930 of 67694
It doesn't really matter what the ratio is and whether PII's were faster because when I switched to this 8320 from my 955 the system felt much smoother, not just in gameplay but also in general use even at stock. Now OC'd there is no way I'm going back to Phenom, even a hexacore one unless I can get one for super cheap.
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