IL-2 Korea System Requirements

[JG14_Jagr]

On 6/18/2026 at 7:57 PM, Herbinator said:

Hi,

Just asking what I would expect the in-game performance would be with this hardware:

14900kf

64gb DDR 4

RXT 3080 10gb

4TB NVME SSD

4K monitor @ 60hz

 

Thanks

Herbs

You should run very well..  I have a similar system but a 3070 with only 8 Gig and other than shutting off 4K textures it runs above 80FPS under all circumstances.  The 4K do need more VRAM that 8 Gig though

[sammydee]

Do these specs come anywhere near the game gentlemen?

 

[brickcommander]

Just now, sammydee said:

Do these specs come anywhere near the game gentlemen?

 

I think you could play 1080p with no problem and 1440p if you are stingy with your settings to not run out of vram.

[sammydee]

Thank you brickcommander, you just made my day. 👍

[Voidhunger]

5 hours ago, sammydee said:

Do these specs come anywhere near the game gentlemen?

 

Hi, I have Ryzen 5600x,32gb ram and 3060ti 8gb with ssd and on balanced settings and almost everything on low or off, with DLSS maximum performance the game is almost unplayable.

In the first mission with the Mig, once the B29s appear , game slows down and and the gameplay is choppy. It feels like 25-30 fps maybe less and its slow.

And of course with this level of detail, the game doesnt look nice.

I also think its a static mission without goals and other planes flying around. I think it will be much worse in the campaign with all the mission processis running in the background.

With the Saber in the second mission, game shows me out of video memmory and the gameplay is very choppy above the city.

Dont buy the game unless you have better comp 😞

I will try to buy better GPU with 16gb ram at the end of the year.  maybe it helps...

[AndreiTomescu]

7 hours ago, brickcommander said:

play 1080p with no problem and 1440p if you are stingy with your settings to not run out of vram.

huh, i would be less enthusiastic about that....

My specs : 9700x//32 GB RAM at 5600mhz//9070xt 16 GB VRAM

Screen, 1440p, settings as showed in picture. No FSR, since so far it wasn't necessary, my bottleneck was CPU. Fixed FPS at 90.  

1. if you don't restart after each mission, the VRAM is stacking up: like previously used VRAM it's not completely freed up. This has been reported several times here on the forum. Guess it will be fixed in the future, but.....

2. On a simple mission, like a free flight, VRAM goes a bit over 8

3. on an exam mission VRAM goes about 10, with short "bumps" as FPS drops to 70 or less. I supposed it is the "grass issue", since it only happens at very low altitude/on land.

Althought the VRAM is not full, the 9070xt (and this is not a weak card) works at 100%, with power above 300w but only on land/very low altitude. Maybe I should enable FSR ?

Since SP content is scarce now, i saved the "stock" single missions for later, but i'll try that now and report how it goes.

Distant textures x3-x4 is a must otherwise distant terrain looks like a Picasso painting (not in a good way). With those at x3, it looks very good, excellent. 

Edited Thursday at 09:02 PM by AndreiTomescu
no, I don't think FSR is helpfull for my settings

[AndreiTomescu]

quick test, on auto, these are the lowest values i've got for the B-29 intercept mission. FPS capped at 90.

results are hugely similar, thus it's not a GPU bottleneck.

However, CPU usage is also quite similar. still, i would go for a CPU bottleneck.

The image was smooth, however, it didn't stutter noticeably. Playable.  

Any thoughts ? 

[AndreiTomescu]

however, without FSR the microstutter was clearly less. as shown in data.

Now i saw that i had a bit of "garbage" running in the background, at both tests: Qbit torrent client, but with no active downloads running.

Edited Thursday at 09:00 PM by AndreiTomescu

[Drewm3i-VR]

1 hour ago, AndreiTomescu said:

quick test, on auto, these are the lowest values i've got for the B-29 intercept mission. FPS capped at 90.

results are hugely similar, thus it's not a GPU bottleneck.

However, CPU usage is also quite similar. still, i would go for a CPU bottleneck.

The image was smooth, however, it didn't stutter noticeably. Playable.  

Any thoughts ? 

Pretty poor performance if you ask me...I would expect Korea to perform near GB levels due to better optimization, native open XR, multithreading, DLSS, etc. not markedly worse than even DCS. The image you shared doesn't even look that good, or better than what we would see in GB VR.

Looks like I won't be buying for 3-5 years at this point LOL. Can they even fix it? Or is the engine just too complex for current hardware? I guess we will find out. I would rather play GB in VR than Korea in flatscreen and it's not even close TBH. 

Edited Thursday at 10:05 PM by Drewm3i-VR

[FuriousMeow]

40 minutes ago, Drewm3i-VR said:

Pretty poor performance if you ask me...I would expect Korea to perform near GB levels due to better optimization, native open XR, multithreading, DLSS, etc. not markedly worse than even DCS. The image you shared doesn't even look that good, or better than what we would see in GB VR.

 

That would be true if they just left everything at GB's levels, but they didn't. Graphics are superior, FM and DM are calculating more, Korea is just doing more "under the hood." 

My performance isn't that much less than GB, so there's that too.

Edited Thursday at 10:45 PM by FuriousMeow

[Drewm3i-VR]

8 minutes ago, FuriousMeow said:

That would be true if they just left everything at GB's levels, but they didn't. Graphics are superior, FM and DM are calculating more, Korea is just doing more "under the hood." 

My performance isn't that much less than GB, so there's that too.

I think the truth is it's just going to take some time (aka a few years) for hardware to advance and the game to mature for it to be a massive upgrade in VR for everyone without a 5090.

[AndreiTomescu]

1 hour ago, Drewm3i-VR said:

The image you shared doesn't even look that good,

the image is just the upper left corner of the screen, stretched. zoomed about 12x. not relevant.

actual full pictures in screenshots thread.

The game could use a bit more optimizing, yes. i can't explain the fps drop from 90 to 50 , with system apparently not at full stretch.

i'll try to push the 9700x from standard 65w to 105w and see if i notice any difference.

the 9070xt gpu i'm almost certain wasn't the issue.

[FuriousMeow]

1 hour ago, Drewm3i-VR said:

I think the truth is it's just going to take some time (aka a few years) for hardware to advance and the game to mature for it to be a massive upgrade in VR for everyone without a 5090.

Well, then just in time for - hopefully - the Pacific theater.

[Valis]

For me the GFX settings scale quite normally, and I can get it running smooth as glass....right up until AI shows up, then the whole thing gets incredibly jerky.

According to the FPS widget my frame rate remains locked at 100 (and my CPU is just chilling) but panning around it's like I'm running the game on a potato. Once all the AI have cleared off it goes back to being smooth again.

Hope this gets fixed/optimized. 

[brickcommander]

4 hours ago, AndreiTomescu said:

the image is just the upper left corner of the screen, stretched. zoomed about 12x. not relevant.

actual full pictures in screenshots thread.

The game could use a bit more optimizing, yes. i can't explain the fps drop from 90 to 50 , with system apparently not at full stretch.

i'll try to push the 9700x from standard 65w to 105w and see if i notice any difference.

the 9070xt gpu i'm almost certain wasn't the issue.

The bomber mission crushes every cpu on the planet, but it is not indicative of the general performance of the game. In a general career mission or online play you will almost never get into such a situation. 

 

There does need to be serious optimization over cities, however. 

 

With your system, you really shouldn't need upscaling at 1440p. My 5070ti runs at native in VR, so the 9070xt should handle native on 1440p with no issues outside tye bomber intercept or low over soeul.

 

 

[AndreiTomescu]

Well, yes, i haven't had any frame drops except the bombers encouter and walking (not taxiing) on the ground.

The capped fps at 90 stays there in the rest of the time, even against cities.

But I think cities are GPU heavy, not CPU.

If I run uncapped fps, it jumps happily and unnecessary between 85 and 160+.

CPU overclocking that I've tried didn't get me much : just 1-3 fps against the bombers.

So my guess is that the large bombers formation encounter is the issue itself, however I've posted that values as for others to see some minimal effective values needed, with graphic settings enough high as to have a good view (and clearly much better that GB, so they're not dissatisfied).

My opinion upon bottomline is that 16 gb RAM is not enough, and that 12 gb VRAM is a necessity, even for 1440p screen.

Further, I rest my case and hope for some optimisation in the future.

P.S. in GB in some missions with about 60+ planes in the air (see Ruspoli at the gates of Odessa) the fps was still dropping, but with manageable microstutter, just like in this bomber mission.

[Husar]

2 hours ago, AndreiTomescu said:

clearly much better that GB, so they're not dissatisfied).

My opinion upon bottomline is that 16 gb RAM is not enough, and that 12 gb VRAM is a necessity, even for 1440p screen

I my opinion is not a VRAM issue since when game is dropping fps with huge bombers formation in single player ( in multiplayer is smooth) it's a CPU on to high load calculating simulation. When CPU is to much occupied, CPU can't deliver information to GPU on time. So GPU is waiting for data from CPU and FPS are dropping.

Edited yesterday at 08:03 AM by Husar

[Panzerlang]

19 minutes ago, Husar said:

I my opinion is not a VRAM issue since when game is dropping fps with huge bombers formation in single player ( in multiplayer is smooth) it's a CPU on to high load calculating simulation. When CPU is to much occupied, CPU can't deliver information to GPU on time. So GPU is waiting for data from CPU and FPS are dropping.

I guess the CPU load thing is wonky then, because the highest I've seen it go in Black Thursday is 84% and with a lot of bombers in view (VR) I see some stuttering. It's not terrible though.

[Husar]

8 minutes ago, Panzerlang said:

I guess the CPU load thing is wonky then, because the highest I've seen it go in Black Thursday is 84% and with a lot of bombers in view (VR) I see some stuttering. It's not terrible though.

On my system at that mission Load is as high as 70% but that is enough to go into CPU bottleneck, resulting laggy trackIR and fps drop but not to unplayable state, drop is like from 200 to 100-80 FPS . For example singer player skirmishes load is 1-2 % , multiplayer with huge bombers formation like in the Black Thursday is like 15% .

Edited yesterday at 08:36 AM by Husar

[LuftManu]

12 minutes ago, Husar said:

On my system at that mission Load is as high as 70% but that is enough to go into CPU bottleneck, resulting laggy trackIR and fps drop but not to unplayable state, drop is like from 200 to 100-80 FPS . For example singer player skirmishes load is 1-2 % , multiplayer with huge bombers formation like in the Black Thursday is like 15% .

During MP the host is taking the toll of the AI so you will have lower % load. 

A friend of mine cannot play Black Thursday SP in VR but can in the converted MP mission.

A 9800 X3D on flat screen can host and play the Black Thursday mission no problem.

[Husar]

4 minutes ago, LuftManu said:

A 9800 X3D on flat screen can host and play the Black Thursday mission no problem.

 

I have 7800 X3D and I can play but it not a smooth experience in single player - high CPU load is making TrackIR unresponsive - it's a 120hz refreshing so when fps are below that number you notice a lagging or gel like movement.

[MajorMagee]

Ryzen 7 9800X3D, 64 Gb DDR5 @ 3000 MHz, RTX 5070Ti undervolted at 0.85v

Framerate Capped at 97 on 100 FPS 3440x1440 G-Sync Monitor.

With Indirect Lighting turned off I can max out everything graphically and use DLAA and hold a steady 97 FPS.

In the worst of the Bomber Intercept is drops to 90 FPS but is steady without stuttering.

If I turn on Indirect Lighting that drops to 65-70 FPS.

I don't see more that 5 CPU threads being used, and none of those go above 80% utilization.

[Husar]

29 minutes ago, MajorMagee said:

don't see more that 5 CPU threads being used, and none of those go above 80% utilization.

What do you see in % load - RCTRL backspace in game during bombers intercept?

[brickcommander]

9 hours ago, AndreiTomescu said:

Well, yes, i haven't had any frame drops except the bombers encouter and walking (not taxiing) on the ground.

The capped fps at 90 stays there in the rest of the time, even against cities.

But I think cities are GPU heavy, not CPU.

If I run uncapped fps, it jumps happily and unnecessary between 85 and 160+.

CPU overclocking that I've tried didn't get me much : just 1-3 fps against the bombers.

So my guess is that the large bombers formation encounter is the issue itself, however I've posted that values as for others to see some minimal effective values needed, with graphic settings enough high as to have a good view (and clearly much better that GB, so they're not dissatisfied).

My opinion upon bottomline is that 16 gb RAM is not enough, and that 12 gb VRAM is a necessity, even for 1440p screen.

Further, I rest my case and hope for some optimisation in the future.

P.S. in GB in some missions with about 60+ planes in the air (see Ruspoli at the gates of Odessa) the fps was still dropping, but with manageable microstutter, just like in this bomber mission.

The cities are actually cpu!!! I ran a whole bunch of tests on it but, at least in my vr setup, i drop to around 40 fps over soeul, but my GPU use goes down. That seems to indicate that the cpu is not able to prepare framse fast enough for the gpu to render them.

 

 

[JG14_Jagr]

On 7/9/2026 at 9:48 AM, sammydee said:

Do these specs come anywhere near the game gentlemen?

 

I run it on a 14700, RTX 3070 8 Gig, 32 Gig RAM and the only thing I throttle back is the 4K textures.  When I run them I eventually get a VRAM warning.  But, I have the FPS set to 80 and it never goes below 80 even in crowded skies so you should be fine