03whitegsr
Been doing some initial testing on the 3080Ti FTW3 and so far, I haven't been able to beat my XC3 hybrid scores. Pretty disappointing.

It is drawing up to 450W, but it can't get anywhere near the F/V performance. Fans at 100%, temps are right around 70C. Stopped at +150 capped at 2040MHz in timespy, think it was around 0.98V and 450W for a Timespy graphics score of 20,700. Managed the same score on the XC3 using like +225 capped at 2040 and drawing 365W.

Put a Hybrid cooler on the FTW3 and it should clock and perform better.

Ok, I know I previously stated that I wasn't going to muck around much with OCing my new 3080ti FTW3 until the Optimus water block came in and I had it installed under water in my machine, but I couldn't help myself.
 
I set the three fans manually to 100% and looked at what the temps were like. I'm not used to numbers in the 70s and 80s on my GPU since I've been water cooling them for years, but they were low 70s with the fans on full blast, so I drove on.
 
I nudged both the VRAM boost and the GPU core boost up a bit at a time, and as I crept closer and closer to breaking 20k in Timespy (from a score running the 3080ti FTW3 stock in the ~18900 range) I got "break 20k-itis" and kept nudging them up higher, a little bump at a time.
 
At +1000 on the VRAM and +150 on the GPU core I finally broke 20k in Time Spy with a score of 20,034. It looks like the temps topped out at around 77C on the core (wasn't watching the VRAM temps) and the GPU core fluctuated in the low to upper-mid 2000MHz range. 3DMark reports the average GPU clock was 2008MHz with a max of 2070MHz and a memory clock of 1313MHz. I'll say this: at 100% on all three fans it was loud AF, but damn this thing was dissipating over 400W of heat and kept the GPU core at <= 77 C. That's impressive. And impressively loud.
 
Here's a comparison of this >20k run with the very first Time Spy run right after I'd installed the 3080ti and it was all stock, plus an example of the scores I was getting in Time Spy with my water-cooled 1080ti. Note: I'd gotten higher Timer Spy scores on the 1080ti before, but the OC that generated those higher scores was subsequently demonstrated to be unstable in certain other tests and programs and so I'd dialed things back a bit. I don't care about the highest benchmark scores I can ever get: I care about the highest benchmark scores I can get with an OC that's rock stable under all conditions, indefinitely.
 
I really am going to call it quits on the OC experimentation with this 3080ti FTW3 now. I'll revisit it again when I've got it under water once the Optimus block arrives. I know that even with the same settings as now I'll get higher scores under water if only because the GPU temps will be well under the threshold where the card starts thermal throttling, and as it is now it's over that temperature, so I should some steps above the current clocks just for temperature reasons. In the meantime I'll run a bunch of other benchmarks and tests, and games, with this current OC just to make sure that it's not just "Time Spy stable" but rather just stable, period. 
 
Edited to add: and here's a comparison of the 13940 score I just got in Port Royal with the 12950 I got in PR with the 3080ti FTW3 running stock. Now I'm getting "break 14k-itis," but I'm going to force myself to wait for the water block, and just trust that I'll already break 14k with the same settings just due to temperature. Lol, just broke 14k in PR just by not having HWinfo64 running at the same time. I'd wanted to get a look at the memory and hotspot temps, which seemed fine to me. Here's the 14020 in PR compared with the 12950 I saw on stock settings. The case of "break 14k-itis" has gone into spontaneous remission, praise Jebus!

sethleigh
Ok, I know I previously stated that I wasn't going to muck around much with OCing my new 3080ti FTW3 until the Optimus water block came in and I had it installed under water in my machine, but I couldn't help myself.

 
The Optimus block is a monster.  Literally, the thing is heavier than you'd expect.
I just redid my loop in copper, and turned on nicehash overnight to stress it.  The thing stayed nailed at 52C.  I still have the regular BIOS loaded, and just came looking for some OC ideas.

jmazoso1
The Optimus block is a monster.  Literally, the thing is heavier than you'd expect.
I just redid my loop in copper, and turned on nicehash overnight to stress it.  The thing stayed nailed at 52C.  I still have the regular BIOS loaded, and just came looking for some OC ideas.

I'm totally expecting that. I bought this Lian Li mounting bracket that screws onto two of the ATX motherboard hold-down risers and has a little adjustable shelf to support the end of that card. I really don't want all that weight hanging off the PCI-E slot, even if my mobo has a thin steel reinforcement around that slot. No shipping confirmation from Optimus yet, but I'm still patient. Others have waited far longer than I probably will. The card's running fine on air for now.

ziemniak666
I just finished my build with 3080 ti done first test and have one conclusion... I need waterblock!
 
here are the results:  /spy/23947747
 
 
Because I mount card vertically I made a little cheat on temps - I removed the side glass to get below 70C

You and me both brother! I'm running the 3080ti FTW3 on air for the last week while waiting for the Optimus water block to show up. I did do some overclocking with the 3080ti on air with the fans manually pegged to 100%, but stopped before I ever saw any errors or performance regression.
 
Here's a comparison between your score and the best Time Spy score I got with my machine in its current configuration. Your side panel off thing combined with whatever difference in our ambient room temps may exist got you 3 C lower than mine, but I averaged about one step higher on the gpu core and also a higher memory speed. Since I stopped the OCing before hitting any errors I know there's undoubtedly still headroom to be explored once I've got this under water, not to mention avoiding whatever GPU core throttling I'm seeing in the 70s C that I won't see with it below the thermal throttling threshold. I had the side panels on my case, and the GPU is mounted just a few inches above, and facing a 280mm radiator with fans blowing straight up into the GPU, so it's getting plenty of airflow, albeit with air that's above room temperature from passing through a radiator first. I'm just not going to push this to the limit on air because there's no point since it's going to be on water soon.
 
Not to mention I'm hitting my monitor's 120hz refresh rate already at stock settings in pretty much everything I've tried so I haven't even been using my OC profile while gaming.

Curious to see what kind of results I can squeeze out of my 3080ti FTW3 Ultra. I have excellent air flow and case temps. My gpu usually stays just under 70 degrees most of the time with an ambient room temp of 75 degrees Fahrenheit.

I've gotten the core up to +170 but it's only stable in 15% of the games I tested although I haven't played with voltage or power much (no manual curve adjustments).

I've got the memory set to +600. I haven't tested with any other values but I'm sure I can raise it higher.

Yesterday I managed to get a pretty crap Patriot ram kit that's 3200mt CL16-20-20-20-40 to OC to 3800mt CL16-16-16-36 (and many more changes) at 1.4v without using the dram calculator from 1usmus. Before I buy a new kit of better memory I'm going to see if I can get any better out of this using the app.

So today is officially OC day for me as I prepare for Forza Horizon 5 tomorrow

Mgilz8
Ive gotten +108 core / +500 mem. Could go higher on memory but heard reports of poorer performance at higher memory settings. Using Matlab and performace data points, I found maybe a 1% gain with the memory overclock in games. The 108 core did make a noticible improvemnet. I put an ek waterblock on my FTW3 3080Ti and card runs stable at 2040-2055 mhz in all games. If the temps are kept in check, youll see a larger perfomance than just craming in more core clock. 

That's because the memory is ECC or Error correcting code. So what basically happens is if you overcook it higher than the chips can handle errors will occur which generally crashes the game but as long as there aren't to many errors the ram can correct them. It does this by having more chips on the dimm that hold parity bits... Think Raid 5 or Quickpar.

When it corrects an error it adds latency which slows things down (obviously) so with these cards it's super important to properly overclock the memory and test it.

I got my memory to +600 and I played a game with it at that setting along with +165 core and perform was fantastic. It was Forza horizon 5 at 4k max settings and I was between 85 and 115fps depending on what area I was in.

I still need to see if I can squeeze more performance out of the 3080ti FTW3 Ultra but I really wanted to play the game and I had spent the last 2 days overclocking and lowering the timings on my ram. At 1.4v (oh boy) I got a 2x16 kit of 3200mt CL16 to 3800mt CL18-19-19-38 1T.

No 70 is fine for an air card run.

Stepped up to this 3080ti ftw3 ultra.
 
14500 Port Royal I would link but I'm a new member since 2017.
+180 Core Clock
+1800 Memory
On Air
 
19347 Time Spy (GPU 21394 CPU 12547) 10850k
 
Is this considered a decent sample.  I'm undervolting it for some games.  

Here are some numbers I just tested this morning, I am water cooled as well temps around 42c. I did not touch the voltage at all.I had the numbers backwards doh on my part.
 
Time Spy                  140/1200    Overall 18705 GPU  21609
                            
 
Fire Strike Extreme    140/1200  Overall 21645 GPU  25025
                             
 
Port Royal                140/1200  14523
                              

New Time Spy test @ 140/1600
Overall 18758   GPU 21835
 
Port Royal @140/1600  14655

finally got 22000+ on time spy score.
3080ti hybrid
+195 core,+1100 mem…

time spy graphic score 22061
ts extreme 11315
Portroyal 14920

heard ppl tell me i should lower my core a little and increase mem clock to acheive higher score.

i’ll try +165 core and +1500 mem latter and see

3080Ti FTW3 with Hybrid Kit, Swap the RGB fans to two black Noctua A12x25
 
+180 core, +1500 Mem
Below is the graphic score
 
Time Spy 22180: https://www.3dmark.com/spy/24499138
Time Spy Extreme 11419: https://www.3dmark.com/spy/24499276
Port Royal 15005: https://www.3dmark.com/pr/1327206
 
For daily use, I set the fan on the card to 55% maximum and two A12x25 to 60% maximum. The whole system is very quiet under this setting, and the TS score is about 21600 (+150 core, +500 mem).
 
For memory overclocking, I find the high score does not reflect much in actual FPS.
I tried a couple of games like Shadow of the Tomb Raider, Cyberpunk 2077, AC Valhalla. The FPS difference between +0 mem and +1500 mem is only 1~2 FPS...

kraade

clwd008ya
3080Ti FTW3 with Hybrid Kit, Swap the RGB fans to two black Noctua A12x25
 
+180 core, +1500 Mem
Below is the graphic score
 
Time Spy 22180: https://www.3dmark.com/spy/24499138
Time Spy Extreme 11419: https://www.3dmark.com/spy/24499276
Port Royal 15005: https://www.3dmark.com/pr/1327206
 
For daily use, I set the fan on the card to 55% maximum and two A12x25 to 60% maximum. The whole system is very quiet under this setting, and the TS score is about 21600 (+150 core, +500 mem).
 
For memory overclocking, I find the high score does not reflect much in actual FPS.
I tried a couple of games like Shadow of the Tomb Raider, Cyberpunk 2077, AC Valhalla. The FPS difference between +0 mem and +1500 mem is only 1~2 FPS...

Excellent results, you are keeping that very cool too

Outside is 13 ℃. I open my window and put PC next to it for cold air, Lol.
For daily use, the ambient temp is 21~22 ℃.

CraptacularOne
Just got around to start pushing this 3080 Ti. 
 
Just set the following values of:
+112% TDP
+150 core
+1500 mem
 
14,839 Port Royal https://www.3dmark.com/pr/1328028
 
21,218 Time Spy https://www.3dmark.com/spy/24514414
 
My CPU is running at my daily driver speed of 5Ghz all core, will probably get around to pushing it to 5.2Ghz in benchmarks as I open it up. The memory on this 3080 Ti can max out the highest available setting in Afterburner so I'm tapped there. Just gotta see what the core can do. 

PX1 can go to +2000 I think. Seems like MSI increased it in the latest AB too, but maybe that was only for the 3090.

Edit: latest AB beta does go to +2000