Just spoke to EVGA, they say my particular card (1070 FTW) draws 215w. Safe for my 5,1?
As I understand it, you get 75w from the PCI-E slot and 75W per PCI-E aux plug.
So in theory, I'm set? Right? Just need a sanity check.
In theory, the cMP can safely power a 225W graphic card (official limit). As you said, 2x 75W = 150W from the mini 6pins, and 75W from the slot.
And that 215W from EVGA most likely is on the safe side already. The standard 1070 is just a 150W card. Review shows that 150W is a very accurate number. Therefore, 215W is 43% on top of that. It's a lot. I doubt if your 1070 will really draw that much in stock setting. I bet that dual 8pin is a marketing strategy more than actual needs.
And even if your card can pull more than that, since it's a dual 8pin design. The power draw can be evenly distributed between the two 8pins, which is very very important on the cMP. Because you don't want to heavily rely on only one of the mini 6pin and leave the other one at idle. The actual power avail is about 120W from each 6pins. Anything more than that may trigger the self shutdown protection (I tested this by myself, it's safe, nothing damaged. Just a protection. However, I do not recommend anyone to stress their cMP to this level). In real world, the cMP can power a card up to about ~315W (real world limit).
Assuming your card draw power evenly on the 8pins, and we allow 20W buffer on each mini 6pin (experience shows constant ~110W drawing from the 6pins are actually OK). So 100W from each mini 6pin + 75W from the slots is 275W available (personal limit). Way higher than your 1070's TDP.
That means your 1070 is officially and technically safe by just using the mini 6pin to drive. The only concern is the spec of the 8pin is rated up to 150W each. However, I am very sure your card cannot draw anything near 375W. In fact, most likely not even 275W even under heavy overclock.
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Hi, guys.
The cpu usage during the game varies. Cores jump from 0%-3%- up to 60-70% max all the time.
Sometimes some cores sit idling around 3%-8% and some on 0%.
But I've found place in Novigrad where I loose my stable 60fps to 52 fps, when I disable cpu monitoring it is around 55 fps so no problem for me.
In Novigrad gpu usage is around 75-90%.
When I turn in HairWorks it jumps to 90%+.
But when I'm outside the city and turn horizon to uber it sits on 90-99% all the time, but fps dips to 45 fps at times, that's why I choose this option to be set at high.
So too sum it up, there is no real cpu bottleneck (none of the cores hits 100% in Novigrad and overall gameplay) as is for 2xgtx680 4GB in 1080p.
The lower fps count in Novigrad is I believe due to SLI, which is very problematic at times in different games.
I think the switch to gtx1080ti will iron things out, eliminate SLI and give me strong 60fps in 1080p for years
Hope it helps!
The reading can be confusing. When we talk about CPU bottleneck, we talk about single "thread" performance. However, the CPU can use more than one core to finish a single thread process. e.g. 50% in core 1, and 50% in core 2. I know it sounds strange. However, a single thread process actually consists millions of calculation. The real problem is that they cannot be done in parallel.
e.g. A process consist 3 calculations. Part A, B, and C. Part B require the result from part A, and Part C require the the result from Part B. Therefore, they cannot be done in parallel. It's a single thread process.
In this case. your computer may use core 1 to perform part A calculation, then pass the result to core 2 and finish part B, and then let core 3 to do Part C.
To simplify the big picture. Let's assuming it's 3Hz CPU, and each Hz mean can do 1 part to calculation.
When you monitor the CPU's usage in that particular second. You will see core 1 33%, core 2 33%, core 3 33% None of them reach 100% utilisation rate. However, you are CPU single thread (speed) limiting. If you get a 9Hz CPU, the process can be finished 3 time faster.
Since we don't know how the games programmed to use the CPU. It's hard to tell if the process is CPU single thread limiting by just read the CPU cores' utilisation rate.
You will need something like activity monitor to check if the game is CPU limiting (single thread). If we see a process stuck at 100% demand. That's a clear sign of CPU single thread limiting. But in Windows gaming, you can't see that info from the OSD.