Earlier this month, CD Projekt RED released Patch 1.3 for Cyberpunk 2077. However, this latest update made the game unplayable on CPUs that lacked AVX. Thankfully, there is a mod now that makes the game, once again, playable on older CPUs.
In case you are wondering, if you try to run the latest version of CP2077 on non-AVX CPUs, you’ll get an “EXCEPTION_ILLEGAL_INSTRUCTION (0xC000001D) crash”. As the modder noted, the crash occurs in the AudioKinetic sound engine. Thus, Jens Andree had to patch out 33 AVX instructions in order to make the game work again.
“The solution is a bit dodgy but since I couldn’t find one point in memory to prevent these calls I simply searched for each one of them and patched them out with nop (No OPerand, i.e “do nothing”).
The patched out instructions will not affect the code in any way since I’m keeping all the register values, which is what would’ve happened if it was executed on an AVX capable CPU. They’re just instructions to check some data and it didn’t execute any differently after the patch compared to a stack trace on an AVX CPU.”
You can download the mod from here.
We also suggest taking a look at the Megamod. Cyberpunk 2077 Megamod is a mod that attempts to overhaul numerous aspects of the game, such as the AI, armors, perks, melee, player stats and weapons.
Have fun!
John is the founder and Editor in Chief at DSOGaming. He is a PC gaming fan and highly supports the modding and indie communities. Before creating DSOGaming, John worked on numerous gaming websites. While he is a die-hard PC gamer, his gaming roots can be found on consoles. John loved – and still does – the 16-bit consoles, and considers SNES to be one of the best consoles. Still, the PC platform won him over consoles. That was mainly due to 3DFX and its iconic dedicated 3D accelerator graphics card, Voodoo 2. John has also written a higher degree thesis on the “The Evolution of PC graphics cards.”
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Pure regression 9 months later lul. How the fxck do they re-add AVX requirement and completely destroy SSR/RT reflections with just 1 patch? All the previous dumb devs who left after receiving their bonuses in July left their work to some completely clueless underpaid newborns who just arrived at the office – the cycle continues. I swear everyone who is involved with CP77 is a braindead bellend.
Oh and if you want to see SSR diff, here:
https://imgsli.com/NjcwODIhttps://uploads.disquscdn.com/images/7d31056e0af1c0092eae03d80029ee0a95e7f6e5e817651f4baef10d994bd3da.png
lmao WTF they’re gonna fix it, right? I mean, that’s just… wow
Who uses SSR these days when you can have RT reflections.
RT is also broken
It was working fine for myself just yesterday. I booted it up for a look at the 1.3 patch before uninstalling. Just disable SSR, RT will kick in.
AVX2 has been around for about a decade now, and I can’t imagine any CPU’s that didn’t have any form of AVX support that would have been capable of running the game to begin with. Sometimes I wonder just how much support for ridiculously old CPU’s is holding back game performance…
You might be thinking of AVX1.
AVX2 for example was only introduced by AMD in 2019 with Zen2.
“Sometimes I wonder just how much support for ridiculously old CPU’s is holding back game performance”
Developers supported old CPU on PC because games was designed for slow mobile Jaguar CPU in last generation of consoles. Even 10 years old PC CPU was faster than Jaguar CPU from PS4
This will change in this generation because slowest and cheapest console Xbox Series S (299 usd) use fast Ryzen 8 core, 16 threads CPU clocked at constant sustained 3.6 GHz. This is just Ryzen 3700X but with a lot faster GDDR6 unified memory instead of slow DDR4.
Soon developers will remove support of old Xbox One consoles and new games will be designed only for current generation of consoles. Those games like Forza Motorsport, Fable, Starfield will use Xbox Series S as minimum requirements on PC. This will allow for better physics and AI in games
I was surprised that my 3770k held up with a 3080 playing CP2077 maxed out with RT and DLSS Quality at 1440p. 45-capped 60 FPS at the time.
With more vulcan and “proper” dx 12 adaptation the cpu’s will be less and less utilized to run the gfx compared to today so chances are quite good (beside the lack of certain instruction sets) that the games would been running just fine for quite some time on even old cpu’s
And their coupled with GDDR that’s great for bandwidth but sucks in latency where DDR is made for many small transactions holding those conslow cpu’s back even more. Think Ferarri vs truck basically… where the gpu loves the truck bulk-loads the cpu love the Ferarris many smaller ones.
We also know how latency sensitive the Ryzens are (Yes they scale better than the typical intel because their memory controllers/predictions are less efficient) so not surprised really (haven’t watched the vid thoo)
AMD with their garbage RT and no DLSS option is holding back PC gaming.
Consoles have always held back PC gaming. They are being scalped right now but if you look at the $400 to $500 MSRP you can’t get a lot of performance for that price point. At least some of the former console exclusives are finally coming to PC.
You know something is weird when folks in Poland have more advanced processors (with AVX support) then folks in English-speaking countries who are apparently equipped with old processors without AVX support
People are so dumb.
It must be very nice experience playing this game on Phenom II X4… Most of those people didn’t even buy the game, yet they yell on the devs WHY GAME FOM 2020 IS NOT WORKING ON MY 15 YERAS OLD CPU!!!!!
Idiots everywhere.
So noop’ing an instruction that was suppose to do something, what’s missing after that surgical “cut” I have to wonder….