RAVENEVGA
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I heard that if you use a resolution greater than 1920, you can get issues with bottlenecking if you have an i7 12700 and are using a 3080 Ti. Is there any truth to this or a non-issue?
> Windows 11 Pro> Case: Lian Li O11 Dynamic XL> PSU: EVGA SuperNOVA 1000 G5> Mainboard: EVGA Z690 CLASSIFIED (BIOS v1.10 6/21/2022)> CPU: Intel Core i7-12700K> Video Card: EVGA 3080 Ti FTW3 ULTRA> Cooling: Noctua NH-U12A> Physical Memory: Corsair Dominator Platinum RGB DDR5, 32 GB [2x16GB], 5600MhHz> Drives: 980 Pro 1TB [main], 980 Pro 2TB, 990 Pro 2TB> Physical Memory Model#: CMT32GX5M2B5600C36W> Main Monitor: LG UHD 4K 32" [Model:32UN500-W.AUS] > Second Monitor: Samsung C27F591 [Model:LC27F591FDN]
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kraade
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/22 16:28:44
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RAVENEVGA
I heard that if you use a resolution greater than 1920, you can get issues with bottlenecking if you have an i7 12700 and are using a 3080 Ti. Is there any truth to this or a non-issue?
totally a non- issue. The Higher the resolution the more the card work , you can get CPU bound at lower resolutions , but those are ridiculously high frame rates = no issue
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ObscureEmpyre
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 05:46:44
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Yep, total nonsense. My wife’s 12700K/3080 Ti performs just as good as my 12900K/3080 Ti at 1440p when it comes to gaming. Of the current Intel gen, I’d bet even a 12400 would do the trick. Who’s spouting this cheese ball nonsense anyway? Just for kicks, here’s a funny video that exactly pertains to this question: https://youtu.be/NbNZxX2MIFM
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bdary
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 08:58:59
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Every time I see that video no matter what it's pertaining to, I get a good chuckle... 
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kraade
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 09:12:41
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getalife
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 11:34:28
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How can you have a bottleneck issue on a PCI-E 5.0? You can't even break the barrier of the PCI-E 4.0 with that card?
Pretty sure you experiencing more a temp issue, and your graphic card might throttle, if i was you, i will investigate this first!
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CraptacularOne
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 11:42:22
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getalife
How can you have a bottleneck issue on a PCI-E 5.0? You can't even break the barrier of the PCI-E 4.0 with that card?
Pretty sure you experiencing more a temp issue, and your graphic card might throttle, if i was you, i will investigate this first!
The generation of the PCIe interface has very little to do with "bottlenecking" as even PCIe 3.0 is more than enough bandwidth for graphics data. What the OP is referring to is the CPU limiting the performance of a video card. As for the topic at hand, sure there will be a little bit of CPU bottlenecking at only 1080p with a RTX 3080 Ti, this will also be the case with even a 12900K when paired with a RTX 3080 Ti. The whole ampere architecture just isn't really geared at lower resolution rendering efficiency in the higher range of cards. This is why they usually do better a higher resolutions where their compute heavy and complex design can really stretch their legs. You'll often see this in benchmarks where something like a RX 6900XT will be faster than competing Nvidia Ampere cards at lower resolutions like 1080p but then fall behind at 4K. TLDR: Don't worry about it, a 12700 + RTX 3080 Ti combo is great for gaming. You get all the P core performance of the 12900K without the mostly useless for gaming E cores.
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getalife
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 11:53:15
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CraptacularOne
getalife
How can you have a bottleneck issue on a PCI-E 5.0? You can't even break the barrier of the PCI-E 4.0 with that card?
Pretty sure you experiencing more a temp issue, and your graphic card might throttle, if i was you, i will investigate this first!
The generation of the PCIe interface has very little to do with "bottlenecking" as even PCIe 3.0 is more than enough bandwidth for graphics data. What the OP is referring to is the CPU limiting the performance of a video card.
As for the topic at hand, sure there will be a little bit of CPU bottlenecking at only 1080p with a RTX 3080 Ti, this will also be the case with even a 12900K when paired with a RTX 3080 Ti. The whole ampere architecture just isn't really geared at lower resolution rendering efficiency in the higher range of cards. This is why they usually do better a higher resolutions where their compute heavy and complex design can really stretch their legs. You'll often see this in benchmarks where something like a RX 6900XT will be faster than competing Nvidia Ampere cards at lower resolutions like 1080p but then fall behind at 4K.
TLDR: Don't worry about it, a 12700 + RTX 3080 Ti combo is great for gaming. You get all the P core performance of the 12900K without the mostly useless for gaming E cores.
Oh i see, good to know. thx for teaching me about that CPU bottlenecking. i play myself in 2K or 4K since 2016, so i'm very curious why playing in this low resolution with an high end card and last Intel baby product? I haven't bother to buy the 12700K myself and use the I5 12600k instead. NVIDIA GeForce RTX 3090 video card benchmark result - Intel Core i5-12600K Processor,Micro-Star International Co., Ltd. MAG Z690 TOMAHAWK WIFI (MS-7D32) (3dmark.com)
post edited by getalife - 2022/06/23 16:07:34
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RAVENEVGA
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 20:21:01
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Wow....thanks for the great info, guys! :-)
> Windows 11 Pro> Case: Lian Li O11 Dynamic XL> PSU: EVGA SuperNOVA 1000 G5> Mainboard: EVGA Z690 CLASSIFIED (BIOS v1.10 6/21/2022)> CPU: Intel Core i7-12700K> Video Card: EVGA 3080 Ti FTW3 ULTRA> Cooling: Noctua NH-U12A> Physical Memory: Corsair Dominator Platinum RGB DDR5, 32 GB [2x16GB], 5600MhHz> Drives: 980 Pro 1TB [main], 980 Pro 2TB, 990 Pro 2TB> Physical Memory Model#: CMT32GX5M2B5600C36W> Main Monitor: LG UHD 4K 32" [Model:32UN500-W.AUS] > Second Monitor: Samsung C27F591 [Model:LC27F591FDN]
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fpandjic16
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 21:11:02
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If you are playing at 1080p, there will be CPU bottleneck, but still FPS are going to be really high so you don't have to worry about that. Even with 12600k, you should not have issues.
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HeavyHemi
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/23 21:14:21
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RAVENEVGA
I heard that if you use a resolution greater than 1920, you can get issues with bottlenecking if you have an i7 12700 and are using a 3080 Ti. Is there any truth to this or a non-issue?
I'm within a frame or two at 4K running on my ancient Broadwell-E based on online benchmarks I've perused. Bottlenecking is loosely defined as whatever part of your system is impacting your performance the most at your preferred settings. You'd probably achieve a higher performance delta switching to some form of water cooling vs changing the processor.
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RAVENEVGA
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/25 09:24:11
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When playing games, I've not had my GPU temp go above 77c.
> Windows 11 Pro> Case: Lian Li O11 Dynamic XL> PSU: EVGA SuperNOVA 1000 G5> Mainboard: EVGA Z690 CLASSIFIED (BIOS v1.10 6/21/2022)> CPU: Intel Core i7-12700K> Video Card: EVGA 3080 Ti FTW3 ULTRA> Cooling: Noctua NH-U12A> Physical Memory: Corsair Dominator Platinum RGB DDR5, 32 GB [2x16GB], 5600MhHz> Drives: 980 Pro 1TB [main], 980 Pro 2TB, 990 Pro 2TB> Physical Memory Model#: CMT32GX5M2B5600C36W> Main Monitor: LG UHD 4K 32" [Model:32UN500-W.AUS] > Second Monitor: Samsung C27F591 [Model:LC27F591FDN]
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HeavyHemi
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/25 12:33:37
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RAVENEVGA
When playing games, I've not had my GPU temp go above 77c.
Okay. You're dropping several frequency bins due to temps. Your CPU could also benefit from lower temps and higher frequencies using a loop. It isn't rocket science, simply a comment on what is.
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donta1979
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/25 12:43:56
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No its not going to bottleneck it maybe a little at 1080p yet the 30 series at least the higher tiers are not design for that lower resolution that is more of a cpu is doing most of the work resolution still. So it's more of an Intel/AMD cpu thing at that resolution.
As for your GPU temps if you want the best possible boost clocks nearly all the time get it colder my 3080 and 3080 12gb FTW3 Ultra's do not hot or break 70c they stay at around 60-65c. One boost to 2025mhz the other around 2070 yet I have seen 2085 only once. Get it colder both with intel 12th gen means higher Turbo clocks on the cpu, and on the gpu it means higher boost clocks. I have noticed the best GPU boost clocks normally happen staying below 60c.
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kraade
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/25 13:39:46
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I've tested my KPE 3090 in a z390 i9 9900k DDR4 3200 with a 3.0 rider cable and stuck it in a Z690 I9 12900 k DDR4 4800 in a 4.0 slot and it Port Royal'd the same exact score
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ObscureEmpyre
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Re: Issues with i7 12700K and 3080 Ti having issues with bottlenecking?
2022/06/25 18:30:16
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kraade
I've tested my KPE 3090 in a z390 i9 9900k DDR4 3200 with a 3.0 rider cable and stuck it in a Z690 I9 12900 k DDR4 4800 in a 4.0 slot and it Port Royal'd the same exact score
That’s because Port Royal is a raytracing benchmark, and primarily utilizes the GPU. Very little CPU usage for that benchmark specifically.
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