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post #111 of 195
Quote:
Originally Posted by just_nuke_em View Post
Keep pushing it cody. They can dance with SB, freq wise http://valid.canardpc.com/show_oc.php?id=2048824
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post #112 of 195
Quote:
Originally Posted by just_nuke_em View Post
Keep pushing it cody. They can dance with SB, freq wise http://valid.canardpc.com/show_oc.php?id=2048824
Wow, nice freq. What cooling are you using (heatsink/waterblock/fan)?
post #113 of 195
Has anyone tried disabling even cores to see for performance and/or overclocking increase?
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post #114 of 195
Quote:
Originally Posted by just_nuke_em View Post
Keep pushing it cody. They can dance with SB, freq wise http://valid.canardpc.com/show_oc.php?id=2048824
oh my ...
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post #115 of 195
Quote:
Originally Posted by coupe View Post
has anyone tried disabling even cores to see for performance and/or overclocking increase?
+1
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post #116 of 195
Quote:
Originally Posted by Don Karnage View Post
Just for reference i pull a 7.35 score at 4.6ghz
but you pull 1.5-1.6 on single

this pull 1.03-1.06

check the advance MP ratio.

I would like to note thuban has more instruction cache compared to bulldozer
384Kbytes(64x6 Kbytes) vs 256Kbytes (64x4 Kbytes)

my only disappointment would stems form that 2 way 64Kbytes instructions i don't think it's
enough for bulldozer

the 16Kbytes 4 way data cache is pretty good if it's keeping up with the old 2 way 64Kbytes data cache.
1/4 of they been using.
Edited by Demonkev666 - 10/16/11 at 7:33pm
    
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post #117 of 195
Quote:
Originally Posted by coupe View Post
Has anyone tried disabling even cores to see for performance and/or overclocking increase?
I'll be doing a pretty massive analysis on this tomorrow (or, rather, later today). But others have done it, and shown that 4 threads on 4 separate modules yields better performance than 4 threads on 2 modules. You could misinterpret that as an improvement in single thread performance, but its not - the gain still only applies to multithreaded workloads.

I noticed that when running superpi, windows would schedule the task across cores, but setting affinity to just 1 core yields no performance change.

I do not know about overclocking, but when they set the world record, it was on 1 module, so I would assume that turning off modules would increase overclocking potential (also in line with the 4100 I see posted above @ 5.3ghz)

Here's my first batch of numbers at 4.5ghz (To OP: Not trying to steel your thunder here, just figure we have the same CPU so might as well compare notes, in the name of science):

Complete System Specs:
CPU: AMD FX-8120 200x22.5, 4.5ghz @ 1.470v (CPU-Z reports between 1.432-1.440v, so idk what that is - 1.470v is the setting I have chosen in BIOS; the 1100t also did the same thing)
RAM: 2x4gb ADATA Gaming Series v2.0 DDR3-2000 @ 1866mhz, 9-10-9-27, 1t cr, 1.65v
GPU: 2xMSI R6970 Lightning in Crossfire, 940mhz factory OC, 5500mhz GDDR5
Mobo: MSI 990fxa-gd80, BIOS/UEFI v11.5
SSD: ADATA S511 120gb sata III
HDD: Western Digital Caviar Black 1tb, 7200rpm, 64mb cache (not tested)
Case: Rosewill Blackhawk (not relevant; provided for completeness)
Cooling: Zalman CNPS11x hsf; 3x120mm fans, 3x140mm fans
PSU: Seasonic X-850, 850w

wPrime:
32M: 7.94s
1024M: 247.857s

SuperPi 1M:
19.328s (Using HyperPi frontend)

Cinebench v11.5 (64-bit):
8-core: 7.40
1-core: 1.09

Aida64 v1.85:
CPU:
Queen: 38600
PhotoWorxx: 53755
Zlib: 327.7 MB/s
AES: 380226
Hash: 4584 MB/s
FPU:
VP8: 3643
Julia: 14567
Mandel: 7448
SinJulia: 3129
Memory:
14675 MB/s Read, 10405 MB/s Write, 18374 MB/s Copy, 46.9ns Latency
Cache:
L1: 142932 MB/s Read, 25066 MB/s Write, 50091 MB/s Copy, 0.9ns Latency
L2: 14569 MB/s Read, 21392 MB/s Write, 38366 MB/s Copy, 4.6ns Latency
L3: 23080 MB/s Read, 11528 MB/s Write, 16931 MB/s Copy, 7.1ns Latency

3dmark 11: P9707 Overall
Graphics: 11391
Physics: 7374
Combined: 5942

3dmark Vantage: P28735 Overall
Graphics: 31309
CPU: 23050
AI: 3213 ops/s
Physics: 29 ops/s

SiSoft Sandra:
Arithmetic: 102.67GOPS
Multi-Media: 258.54 MPix/s
.NET Arithmetic: 27.19 GOPS
.NET Multi-Media: 35.70 MPix/s
Memory Bandwidth: 18.99 GB/s
Physical Disks: 463 MB/s
GPU Processing: 2155.82 MPix/s
GPU Bandwidth: 14.16 GB/s
Overall Score: 36.15 kPT

Temps (Room temp = 20C/69F)
Load Avg: 49C
Load Max: 52C
Idle Avg: 20C
    
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post #118 of 195
Quote:
Originally Posted by coupe View Post
Has anyone tried disabling even cores to see for performance and/or overclocking increase?
Well I picked up an 8150 today, Asus in the current 813 bios only lets you disable modules. going from 8core to 4core at the same clock speed of 4.6Ghz was WAY slower than the 8core. If the 4 does oc higher it would need to be A LOT higher which I dont think it will do.

Im having a challenging time getting it past 4.7, 4.6Ghz was easy but this thing overclocks very different than thuban, its literally overclocking a new beast. Performance is as bad as everyone reported lol even when I benched at 4.8Ghz I was a lot lower in scores compared to my 4.2Ghz 1100T.

WHat sucks is I cant return the 8150 and Im not sure I want to sell the 1100T, I may end up selling the 8150 in a few weeks if performance doesnt change with updates.
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post #119 of 195
Quote:
Originally Posted by Cool Vibrations View Post
Wow, nice freq. What cooling are you using (heatsink/waterblock/fan)?
That was on water just to get the feel. Goes much farther on DICE http://valid.canardpc.com/show_oc.php?id=2050382.

Disabling cores defiantly helps in OCing, though I couldn't get above what I got with 2 cores.

Quote:
Originally Posted by 66racer View Post
Im having a challenging time getting it past 4.7, 4.6Ghz was easy but this thing overclocks very different than thuban, its literally overclocking a new beast.
What are your settings?
    
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post #120 of 195
Quote:
Originally Posted by just_nuke_em View Post
That was on water just to get the feel. Goes much farther on DICE http://valid.canardpc.com/show_oc.php?id=2050382.

Disabling cores defiantly helps in OCing, though I couldn't get above what I got with 2 cores.


What are your settings?
initially I just went to 1.4v cpu and ramped the multiplier to 23. so 200.5x23=4611, that ran prime until I stopped it at 58c around 8-10mins, my room ambient temp was 80F so that didnt help. At 1.5v my 1100T would stay under 45c in these same ambient temps 1hour+ Everything else was auto, memory is 4dimms, 1.65v.

At these settings bellow Im loosing core 8 (coretemp c7) within 2 mins on small fft. Temps are about 58c at that point. I think the cooler im using just isnt transfering heat fast enough, its the antec kuhler 920, i have 2 radiators on it, 120mm each. TIM is Shin etsu x23. Liquid temp is about 35c at the antec module.

Im at
243.8x20=4876mhz
cpu 1.42v, load 1.47v
cpu-nb auto (1.15-1.16v)
cpu-nb aprox 2180mhz
htt aprox 1980mhz
dram at 1600's mhz (rated for 1886)
dram 1.65
ht voltage 1.27v

all other voltage auto

edit---
I increased the cpu-nb to 1.2v (loads to 1.23v) and lowered cpu to 1.40, helped with c7 but now getting c6 dropping. Going to rais back up slowly, temps were a little lower this way though.
Edited by 66racer - 10/17/11 at 12:48am
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