The_Ether_Bunny
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mpoffo
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/26 13:21:53
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The_Ether_Bunny
http://www.3dmark.com/3dm/12694888
Using Afterburner:
120 power limit
92 temp limit
+205 core
+504 mem
27 degrees idle
35 degrees under load
Very nice. Are you stable at that OC?
X299 System:
Windows 10 Pro 64-bit | Intel Core i9 7900x (4.4 GHz)| ASUS Rampage VI Extreme | 32 GB 3200 G.SKILL TridentZ RGB Corsair 900D | Corsair AX 1200i PSU | Corsair H115i Elite Capellix (in Push/Pull) | EVGA RTX 3090 FTW3 Ultra & 1080 8 GB
Samsung 870 PRO 2 TB | Samsung 850 EVO 500 GB | Intel 520 SATA SSD 240GB HD | 2 & 4 TB WD Black Hard Drive
Creative Sound Blaster Z | Logitech THX 5.1 speaker setup | LG Blu-ray burner | Corsair AF 120 and 140 Fans
Acer x34 Predator (G-Sync) | 2 x Samsung SyncMaster PX2370
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The_Ether_Bunny
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/26 14:09:15
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XSPC RX480 w/ 8 TT Riing push/pull XSPC Raystorm PRO EK FC 1080 Nickel Monsoon MMRS (2 x 200mm resivoirs) D5 DI Water Thermal Grizzly Kryonaut and Fujipoly Extreme thermal pads I started doing hardline tubing until I severed the silicone insert so I finished with soft tube until I get a new insert.  Stable at those settings but I went to +200, +500 because OCD. After 3 hours of gaming temperature peaked at 40 but was 35-39 95% of the time.
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hehehippie
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/26 16:29:13
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man, those full watercooled system u guys have look sick.
i have no experience with them, but i will do my research and build one in the future. there's nothing that looks better than a proper system with full watercooling.
Snow White: NZXT Switch 810 case, Intel 6700k @ 4.7Ghz, Asus Z170 Deluxe MoBo, NZXT Kraken x61, 16GB Corsair Dominator Platinum DDR4-3000 with Light Bar Kit, Samsung 850 Pro 512GB, SeaSonic Snow Silent 750w PSU, Windows 10 Pro, (4) Noctua fans, Dell U3415W Ultrawide Monitor @ 80Hz, Corsair Strafe RGB Silent, Corsair SP2500 2.1 System, White CableMod Kit, EVGA 1080 FTW Hybrid - EK Vardar F4-120ER (black cable) on the radiator
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jeppouza
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 03:25:33
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Really nice temps under load, how is the GPU clock behavior? Does it stay at fixed at 2114MHz or you get some minor variations?
I am asking this because I think you probably get no gpu clock variation in this temp range, this is awesome.
Cheers
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marty-mcfly
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 03:33:26
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hehehippie
man, those full watercooled system u guys have look sick.
i have no experience with them, but i will do my research and build one in the future. there's nothing that looks better than a proper system with full watercooling.
That would be pretty bad ass with your rig setup in your specs. You'd gain a ton of headroom.
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The_Ether_Bunny
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 07:28:23
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jeppouza
Really nice temps under load, how is the GPU clock behavior? Does it stay at fixed at 2114MHz or you get some minor variations?
I am asking this because I think you probably get no gpu clock variation in this temp range, this is awesome.
Cheers
The 2114 stayed fixed. But I encountered a problem: max power. At those settings I could benchmark Firestrike and Heaven all day with out problems. But during long gaming sessions I would randomly get FPS drops, big drops. I looked at GPUz, CPUz and Afterburner and my max power was at 128-129 which I think was the culprit. I have since gone to +175 on the core and + 300 on memory and the max power hit 121 and I no longer get any FPS drops. With the new settings I got a Firestrike graphics score of 24205 vs 24657. I play BF and Overwatch at 1440 @165 and can almost max settings; I turn down AA. I'm happy.
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bp7178
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 07:40:47
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One card will do +250 the other +225. I never really tested past +550 on the memory. Under very heavy loads the power limit is what is slowing me down. I never get higher than 40 C even when running Furmark or something equally heavy. For benchmarking I'd keep those settings but for a more real 24x7 type of use I'm going to run it at +200/500 and call it a day. 
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jeppouza
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 08:00:27
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The_Ether_Bunny
jeppouza
Really nice temps under load, how is the GPU clock behavior? Does it stay at fixed at 2114MHz or you get some minor variations?
I am asking this because I think you probably get no gpu clock variation in this temp range, this is awesome.
Cheers
The 2114 stayed fixed. But I encountered a problem: max power. At those settings I could benchmark Firestrike and Heaven all day with out problems. But during long gaming sessions I would randomly get FPS drops, big drops. I looked at GPUz, CPUz and Afterburner and my max power was at 128-129 which I think was the culprit. I have since gone to +175 on the core and + 300 on memory and the max power hit 121 and I no longer get any FPS drops. With the new settings I got a Firestrike graphics score of 24205 vs 24657. I play BF and Overwatch at 1440 @165 and can almost max settings; I turn down AA. I'm happy.
Hum, really interesting, the fixed clock is what I expected, now the power max worries me, it appears that the founders card cannot hold too much power above 120% power target during long periods due to its limited VRM phases / energy inputs. Thanks for the explanation, maybe custom boards with more phases (i.e. 1080GTX Classified) on water solves this issue/limitation. Here with 2x1080GTX in SLI, both FE/aircooled and overclocked, I get a lot of gpu clock variance due to temperature, the cards begins at 2100MHz and decreases after some minutes to 2000-2025-2038-2050MHz, depending on the game, resolution and filters, but I don´t get this power max issue with big fps drops since my cards already adapts the clock via GPU Boost 3.0, modifying the power max constantly. I will monitor closely this power max parameter in Afterburner to see how it behaves. Cheers
post edited by jeppouza - 2016/06/27 08:23:06
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The_Ether_Bunny
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 09:15:44
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jeppouza
Hum, really interesting, the fixed clock is what I expected, now the power max worries me, it appears that the founders card cannot hold too much power above 120% power target during long periods due to its limited VRM phases / energy inputs.
Thanks for the explanation, maybe custom boards with more phases (i.e. 1080GTX Classified) on water solves this issue/limitation.
I don't think it will be much different for any 1080. More VRMs just smooth out the power delivery and extra PCIe power adapters only add more watts. The limitation is with the GPU itself. nVidia obviously set a max volt/power limit that these cards can safely, reliably handle. Silicon lottery will be the only determining factor for GPUs that overclock better than others. Which Classified cards normally are, ie EVGA bins each batch for the best chips to end up as Classifieds. That being said, I am very satisfied with my 1080.
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bp7178
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 12:01:11
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I don't know. I think the Pascal was such a jump over Maxwell they needed to handicap it on the reference/FE to create a market demand for the Ti versions down the road.
In other words, I think the power limit has MUCH more to do with marketing and future product releases than what the chip can handle. It will be interesting to see what a BIOS mod can get for guys willing to go that route.
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The_Ether_Bunny
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 12:20:24
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bp7178
I don't know. I think the Pascal was such a jump over Maxwell they needed to handicap it on the reference/FE to create a market demand for the Ti versions down the road.
In other words, I think the power limit has MUCH more to do with marketing and future product releases than what the chip can handle. It will be interesting to see what a BIOS mod can get for guys willing to go that route.
All the reviews have shown that any brand/model 1080 has, roughly, the same limits. The 1080Ti version coming out at the end of the year is a totally different chip. GP104: 1080/1070 GP102: 1080Ti/(Titan V?) http://wccftech.com/nvidi..x-1080-ti-pascal-gp102/
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bp7178
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Re: EVGA GTX 1080 FE/ EK watercooled performance
2016/06/27 12:43:57
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ANY 1080 you buy isn't going to fundamentally different from any other. Now you'll see different fan/heat sink configurations, but the same basic limits apply.
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