Cemu (Wii U emulator for Windows) updated to 1.4.0c, improves speed & graphics
Exzap, the dev behind the wildly popular Wii U emulator Cemu, has recently released an update that brings it up to version 1.4.0c.
Cemu Wii U emulator changes in 1.4.0.c
According to Exzap, this latest version improves the graphics and CPU emulation by a significant amount. The full changelog from the announce:
- Added PowerPC JIT recompiler (up to 5-6 times faster CPU emulation)
- Decreased shader compilation stutter
- Improved audio emulation
- Large improvements to graphics emulation
- Tons and tons of smaller changes and bugfixes
Exzap mentions a few known limitations about Cemu 1.4.0:
- CEMU does not work with AMD’s graphic driver 16.3 and upwards. This issue will likely be fixed in the next CEMU release.
- Some games don’t boot or randomly crash when recompiler is enabled.

Hey, these are pretty ok limitations, knowing that Cemu wasn’t working at all on AMD not so long ago. Great to see steady progress here 🙂
As with every new Cemu release, users so far are welcoming the new improvements. User SimonBestia on GBATemp says:
Super Mario Maker is running at 56-60fps on my PC!
It ran around 24fps on 1.3.3, now THAT’S a massive speed up!
Several users are reporting twice as much FPS on several games, others are reporting that games are now playable on Cemu with lower end configurations that did not work with former version 1.3.3. Overall, the feeling is that this version dramatically improves performance.
Download Cemu 1.4.0c
You can Download Cemu 1.4.0.c here
Source: Exzap on GBATemp
Greay news! Anyone thinks there will ever be a time when we can play Xenoblade in our PC with this =)?
That’s great. Hopefully those working 360 and PS3 emulator will get a better improvement of the game emulation as well.
Jesus Christ that’s horrifying. Just stop already lmao.
Going to go back to my consistently well performed Wii U.
A system’s that’s gonna die out and soon where other people can enjoy the same experience for free sometime in the future 😛
Are you 12 or poor?
Do you not understand what pirating does when the system is still current.
You won’t shell out the money and buy the console, but you will gladly pirate the games.
Great to see theres love from developers shared with us. These people are highly underrated. Thankyou for your hard work!
Reminder for those getting crashes with NSMBU: You are required to get the 2 Files with Uwizard them have 4 Files in order to make the Game and possibly others work correctly.
Also, if you get Black/Grey Screens, Full Speed Audio and FPS, you need to delete ALL Versions of the Emu including the Current Release, keeping the Keys File, the 4 Files for NSMBU, and your Games. Re-Extract the Current Version, and before altering anything, try a Game to see if Video shows.
Least, that is what I did anyway. Thinking Results/Solution will vary.
Getting about 20 fps.
Impressive stuff, pretty funny to think the wiiu had a day one update which was like 5gb and this emulator is 6mb.
Yeah, it is funny, but you have to remember that’s just the System Menu. With an emulator you don’t really need that since you can just drop straight into game code execution.
Still 5GB are WAY to much for a system menu… remember win xp (different hardware, yes, but complete operating system) came in one cd with about ~650MB … and with all updates packaged in it goes up to ~750MB.
Vista came with one dvd and seven too, win 8.1 iso is just over over 3GB and win 10 iso comes in with 5,9GB… those are full OS’s, NOT UPDATES.
Most Linux distros fit onto a cd… and are even more compressed/streamlined for live usb booting.
What ninty was doing with that day one update is beyond me… maybe all wii game updates and all virtual console configurations in one package?
i’m betting NX will be a flop
Where is the PS Vita news at????/
Hate to say it buddy but that’s because their really isn’t any.
Yeah, it’s unfortunate really. At least Vita is getting Bloodstained!
how does it work without the gamepad?
Keyboard obviously, troll.
Why no april fools pranks wolo usually your a silly *** guess the joyful spirits are dead.
I know, sorry about that, just didn’t have the time this year 🙁
This is one of the biggest feats of software engineering I have ever heard of. Getting a computer to emulate a current video game console this well is like getting a toaster to tap-dance; it just shouldn’t be happening. Not since Bleem! and Connectix VGS have I seen something this mindblowingly impressive.
Guess you weren’t around the Wii or GB/A and DS scene when those emulators were on par with their generation.
Oh yeah, those! Well, DS could STILL be better, but VBA was/is LEGENDARY. The difference there is that both of those are handhelds, so I never found them as impressive (an average computer was 3000 light years ahead of the GBA in terms of power and complexity, so any differences between the hardware and optimizations weren’t as important. Still awesome, though; I still have VBA installed on all my computers). And Dolphin wasn’t on par with the Wii when it was still out, especially considering the average power of computers at the time. Even now, you can’t run Dolphin on just any old PC, where as Cemu is progressing lightening fast and running impressively (not perfectly…yet) on modest gaming hardware.
https://www.youtube.com/watch?v=WBo7vAm2kIg
It actually wasn’t that bad once we had a sudden influx of devs contributing to what has now become the official dolphin repo hub. I still remember when I first saw this in class and was in awe that a wii game could 1)look this good and 2) be emulating at this speed.
Bayonetta 2 menu is 60 FPS, but gameplay… about 7~10FPS. i5 4760/GTX 970.
Very good for a 4MB emulator XD