Upgrade to i7-6700k from i7-920 - lower performance?

So, sort of interesting update.

I moved the 980ti to PCIE slot #2, which is x8. And doing that seems to have solved a lot of problems. Latency is much better now as measured by latencymon, and I was able to play Battlefront and WoWS for a little bit without seeing any of the sort of drops I was getting before (and no latency spikes either). Now that I'm running 2560x1440, I'm getting a solid 100-110 fps at Battlefront with everything maxed out and running the CPU at 4.5ghz. (Which is really nice with gsync, btw.) Haven't tried BF4 yet, but I will report back once I do.

This seems to me to be a lot closer to the sort of performance I ought to be getting? Am I still missing something here? What, if any, performance am I losing by running in the x8 slot rather than the x16 slot? Seems to be that the motherboard has some issue with that slot?

Thanks again to everyone who has helped out!

You've got something else sharing resources with the that primary PCI-E slot that should not be.

I had a similar issue. I record my own music. I recently made a change to use the builtin Firewire on my Motif XS synth workstation, since my motherboard also has builtin Firewire. Immediately, I noticed degradation of quality, including pops and clicks introduced into the audio stream. Latencymon reported AHCI drivers and network drivers as the issue. I struggled with it for a while, until I discovered the following.

I was using Marvell SATA 6 ports on my motherboard. I found that they were both sharing IRQs with my video card, the Firewire port, and my LAN port. I disabled the Marvell SATA ports (which are garbage, BTW), moved my HDDs to the onboard Intel ones, and then let the motherboard rediscover the hardware. Now, everything is on its own IRQ. No more pops and clicks.

Check your motherboard manual. It should have a chart which shows what PCI-E slots share IRQ resources with other things. Disable and/or move them around accordingly. You should not have to run your video card in that x8 slot.
 
So I have finally made the switch over to the system I setup, and was running some passmark test and it completes bombs the 3d portion. It seems to almost cap itself at 60fps in the direct 9/10 tests, and fps are extremely low for the dx11 test. I am getting a passmark of 2821, which is horrible for a gtx 970.

I moved my video card (gxt970) back to my old system, and the tests perform as they should and fps are much higher for some odd reason. I get a passmark score of ~64xx on my old system.

Makes me wonder if its something with this MB as the OP is also having. I did try to move it to the next slow down, but had the same results. I almost tempted to go buy another MB and swap it out to see if it also has the same issue.

I have the same cpu/mb/ram as the OP, clean install of Win10 Pro, beta bios installed.

Update: So I was looking around and playing with a few settings here. I am running an Acer XB280HK monitor and when G-Sync is turned off directx 9 complete, dx 10, dx 11 are all normal now, but the dx 9 simple slowed down to 60fp but was usually ~650fps.
 
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So, sort of interesting update.

I moved the 980ti to PCIE slot #2, which is x8. And doing that seems to have solved a lot of problems. Latency is much better now as measured by latencymon, and I was able to play Battlefront and WoWS for a little bit without seeing any of the sort of drops I was getting before (and no latency spikes either). Now that I'm running 2560x1440, I'm getting a solid 100-110 fps at Battlefront with everything maxed out and running the CPU at 4.5ghz. (Which is really nice with gsync, btw.) Haven't tried BF4 yet, but I will report back once I do.

This seems to me to be a lot closer to the sort of performance I ought to be getting? Am I still missing something here? What, if any, performance am I losing by running in the x8 slot rather than the x16 slot? Seems to be that the motherboard has some issue with that slot?

Thanks again to everyone who has helped out!


Sure sounds like a MOBO or BIOS setting issue now. I'd try reflashing the latest BIOS (even if you already have), at first boot reset the BIOS to the factory default and start again from there. If that pcie slot is still misbehaving I'd RMA the board.

FWIW A single GPU should not saturate the 8x bus, so probably no performance loss there.
 
Check your motherboard manual. It should have a chart which shows what PCI-E slots share IRQ resources with other things. Disable and/or move them around accordingly. You should not have to run your video card in that x8 slot.

Hmm. maybe I'm missing it, but I'm not seeing anything in the manual dealing with the IRQ allocations.

There is another SATA controller aside from the stock intel ones. I don't have any drives hooked up to those, but maybe it is worth disabling?
 
Hmm. maybe I'm missing it, but I'm not seeing anything in the manual dealing with the IRQ allocations.
Really? That's odd they wouldn't include it. All Asus manuals have it, so I might have been off in thinking Gigabyte would do the same.

There is another SATA controller aside from the stock intel ones. I don't have any drives hooked up to those, but maybe it is worth disabling?

If you don't use something, disable it.

Actually, you can find exactly what I was telling you by looking in the Windows Device Manager. Simply open it up, and choose View > Resources by connection. This will list all your devices by which IRQ is assigned to it. You'll be able to tell which devices are sharing. Forget anything listed as ISA and pay attention to the PCI ones. Most specifically, which is sharing resources with your video card. In my system, believe it or not, my sound card, TV card, video card, and Firewire are all using the same IRQ. In my case, this is fine, as long as my LAN port isn't sharing (then it all goes to hell).
 
So I have finally made the switch over to the system I setup, and was running some passmark test and it completes bombs the 3d portion. It seems to almost cap itself at 60fps in the direct 9/10 tests, and fps are extremely low for the dx11 test. I am getting a passmark of 2821, which is horrible for a gtx 970.

I moved my video card (gxt970) back to my old system, and the tests perform as they should and fps are much higher for some odd reason. I get a passmark score of ~64xx on my old system.

Makes me wonder if its something with this MB as the OP is also having. I did try to move it to the next slow down, but had the same results. I almost tempted to go buy another MB and swap it out to see if it also has the same issue.

I have the same cpu/mb/ram as the OP, clean install of Win10 Pro, beta bios installed.

Update: So I was looking around and playing with a few settings here. I am running an Acer XB280HK monitor and when G-Sync is turned off directx 9 complete, dx 10, dx 11 are all normal now, but the dx 9 simple slowed down to 60fp but was usually ~650fps.


Go into geforce control panel > Manage 3d settings > Global Settings > Select Verticle Sync > Turn Off

Rerun your test.
 
So, sort of interesting update.

I moved the 980ti to PCIE slot #2, which is x8. And doing that seems to have solved a lot of problems. Latency is much better now as measured by latencymon, and I was able to play Battlefront and WoWS for a little bit without seeing any of the sort of drops I was getting before (and no latency spikes either). Now that I'm running 2560x1440, I'm getting a solid 100-110 fps at Battlefront with everything maxed out and running the CPU at 4.5ghz. (Which is really nice with gsync, btw.) Haven't tried BF4 yet, but I will report back once I do.

This seems to me to be a lot closer to the sort of performance I ought to be getting? Am I still missing something here? What, if any, performance am I losing by running in the x8 slot rather than the x16 slot? Seems to be that the motherboard has some issue with that slot?

Thanks again to everyone who has helped out!

There could be a problem with the primary x16 PCIe slot. As for the performance difference between PCIe x16 and PCIe x8 slots, I wouldn't worry about it. As for the precise performance, I am not sure. I'm not a benchmark whore and my system is very different from yours. So I can't speak to the performance you should be getting.
 
There could be a problem with the primary x16 PCIe slot. As for the performance difference between PCIe x16 and PCIe x8 slots, I wouldn't worry about it. As for the precise performance, I am not sure. I'm not a benchmark whore and my system is very different from yours. So I can't speak to the performance you should be getting.

^ This.

But while that is true, I am of the mindset that if you paid for a board that has a PCI-E x16 slot, you should be able to use it without issue. Or at least find out what's causing your issue and remedy it.
 
There could be a problem with the primary x16 PCIe slot. As for the performance difference between PCIe x16 and PCIe x8 slots, I wouldn't worry about it. As for the precise performance, I am not sure. I'm not a benchmark whore and my system is very different from yours. So I can't speak to the performance you should be getting.

He should run a futuremark benchmark/heaven 4.0 or some other really popular one. There are plenty of results posted that he can compare his relative performance to.
 
^ This.

But while that is true, I am of the mindset that if you paid for a board that has a PCI-E x16 slot, you should be able to use it without issue. Or at least find out what's causing your issue and remedy it.

I couldn't agree more. I wasn't trying to imply that the OP should move the card and ignore the problem. I'm simply stating that for diagnostic purposes, the move to an x8 slot will have no discernible impact on the performance or benchmark results.

He should run a futuremark benchmark/heaven 4.0 or some other really popular one. There are plenty of results posted that he can compare his relative performance to.

Absolutely.
 
Any updates on this? I'm curious as to what was the final outcome.
 
Any updates on this? I'm curious as to what was the final outcome.

I haven't really had any time to play around with it this last week. The latest is that moving the video card to the x8 PCI-E slot seemed to correct the problems, and performance now seems to be good and in line with what I should be getting. I'm still thinking of trying to work out/fix whatever was wrong with the x16 slot. It could have been a conflict or the slot itself may be busted.
 
So, sort of interesting update.

I moved the 980ti to PCIE slot #2, which is x8. And doing that seems to have solved a lot of problems. Latency is much better now as measured by latencymon, and I was able to play Battlefront and WoWS for a little bit without seeing any of the sort of drops I was getting before (and no latency spikes either). Now that I'm running 2560x1440, I'm getting a solid 100-110 fps at Battlefront with everything maxed out and running the CPU at 4.5ghz. (Which is really nice with gsync, btw.) Haven't tried BF4 yet, but I will report back once I do.

This seems to me to be a lot closer to the sort of performance I ought to be getting? Am I still missing something here? What, if any, performance am I losing by running in the x8 slot rather than the x16 slot? Seems to be that the motherboard has some issue with that slot?

Thanks again to everyone who has helped out!

I'd try to move it back, your problem sounds like you might have not had the power plugged in all the way to the video card. Sounds crazy but that's very similar to the results of a video card lacking enough power.
 
My friend did a i7 860 >> 4770K Haswell upgrade.
(I somehow always convince my friends to upgrade muahah)
He literally did nothing software wise to prepare. Just switched out the mobo/CPU and then stuck it back in his case.

I couldn't believe it worked. He didn't contact me once about any system performance issues at all and was basically running the same Windows 7 install since his Lynnfield install (2009/2010).

Only a few months ago did he update his OS to 10, and like I said, didn't hear a single complaint since the switch.

Yup you can get away with the same install. I just switch out my mobo from my I7 970/X58 to the i5 6500/Z170, and plug and everything backed in works, like a champ! No strange issues. Just uninstall older non relevant driver and install new relevant ones.
 
wow IRQ issues? Takes me back a good few years.

Haha, really. What's next, EMS vs XMS?

Although I still sort of suspect there is an issue with the slot itself being kind of broken rather than an IRQ conflict. I'm tempted to try to swap it back to the x16 slot for another go, but then I will hate myself even more than usual when it inevitably fucks up what is working perfectly well right now.
 
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