Possible leak further details Xbox Series S "Lockhart" specs

Xbox Lockhart Concept
Xbox Lockhart Concept (Image credit: /u/jiveduder on Reddit)

What you need to know

  • A new report from TweakTown backs up some of the specs we previously leaked for Xbox Series S, aka Lockhart.
  • Tom Warren with The Verge also stepped in to provide information on the graphics component.
  • Xbox Series S still has not been officially announced.

A report from TweakTown released a breakdown of the rumored Xbox Series S specs. Most of these specs backed up what we previously reported in December 2019, though it appears that the CPU may have a slighly higher clock speed. Tom Warren at The Verge also backed up these specs, adding that the GPU component has 20 CUs running at 1.55 GHz.

Here's the current rumored specs for the Xbox Series S, aka Lockhart.

Swipe to scroll horizontally
CategoryXbox Series X
Processor8x Cores @ 3.8 GHz (3.66 GHz w/ SMT) Custom Zen 2 CPU
Graphics4 TFLOPS, 20 CUs @ 1.55 GHz Custom RDNA 2 GPU
Die SizeUnknown
Process7nm Enhanced
Memory10 GB GDDR6
Memory BandwidthUnknown
Internal StorageCustom NVME SSD
I/O ThroughputUnknown
Expandable Storage1 TB Expansion Card (matches internal storage exactly)
External StorageUSB 3.2 External HDD Support
Optical DriveNone
Performance Target1440P @ 60 FPS
Release dateHoliday 2020

The Xbox Series S is all-but-confirmed, having not actually been revealed yet. Controllers appeared in the wild with branding stating compatibility with Xbox Series X and Xbox Series S, so it definitely exists. While we'd heard before that the console was planned to be revealed earlier this year, the ongoing global pandemic has thrown many things off. We'll be sure to provide updates when the Xbox Series S is officially announced.

Xbox Series X/S


Samuel Tolbert

Samuel Tolbert is a freelance writer covering gaming news, previews, reviews, interviews and different aspects of the gaming industry, specifically focusing on Xbox and PC gaming on Windows Central. You can find him on Twitter @SamuelTolbert.

  • I think they'll announce it alongside with Series X price. Would be cheaper than the discless PS5, so it would make a great marketing choice.
  • It's like a little Nintendo GameCube without all the excess plastic. OK, other than being a cube, it's really nothing like the GameCube, but... cube!
  • They said that it will resemble a traditional console i remember hearing.
  • Like I have said before, Microsoft has to have SOMETHING to do with all the APU's that don't "quite" pass acceptance testing, but work none the less (a COMMON thing in semiconductor manufacturing.)
    They will take the Series X APUs that don't quite pass QA and fuse-off some of the CUs, drop the frequency down a bit, and reduce the memory bus (maybe) and pair it with cheaper (slower) memory and plunk it down in a new XBox Series S console. 60% the performance for 60% of the price. (Probably $349.00) Whereas the full Series X will come in at $599.00. This will replace the XBOX One X as it will be approx the same power, and as they have already stopped manufacturing One X and S and they will go away when inventory is gone (expect a big One X/S fire sale for Holiday 2020.)
    That way all that expensive silicon is not wasted, they move to a new console pair that BOTH use the same peripherals, expansion SSD's, software stacks, programing functions, and supply chain. If they DON'T do this they are fools. This happens ALL THE TIME in GPU manufacturing from NVIDIA, AMD, etc. and even in CPU manufacturing with Intel and AMD both doing this.
  • I don't believe that will be the case. Series X is 56 CUs with 4 for dormant. Series S reports say 20 CUs for Xbox Series S. I don't see any correlation where 30CUs will come off the manufacturing line in non working order.
  • Nobody said they would, but what if only 5-6 CU's don't work, or don't work at full speed? then what? You don't want to throw the silicon away. That's too expensive.
    You just bin it to a lower SKU and fuse off a BANK of CU's that includes the bad ones, run it at a lower speed (maybe) pair it with slower memory and voila! The XBOX Series S.
    You can also just use a different manufacturing mask around the edges of the wafer where you don't quite have room for a full XBSX APU, but you can squeeze in a couple hundred smaller, (less CUs) size APU (probably with 1/2 the CUs considering the way the architecture is laid out.) That gives you a full-speed, but only 28 CU APU. Slap in some slower memory (GDDR5x?) but keep all the other features, and you got a great product at a much lower price point (and much lower TDP requirements so the cooling solution is much cheaper too.)
    Then again, maybe the just manufacture a XBSS APU that way in the first place w/28 CUs considering how low the failure rate is for 7nm nowadays. You get many more APU's per wafer so the price is lower.
    Either way, I expect a XBox Series S to fully supplant the older XBox One X and S. To keep their supply chain streamlined they have to do this as a lot of the older parts will fade out from the market and no longer be available at a good price, especially as the volume of sales falls off the cliff with the new consoles taking up the sales.
  • I'm waiting for this console, but won't buy it if it comes without optical drive.
  • Announce the damned thing already!!!
  • No way the series x comes in at $599....that would be doa. It has to be the same or lower than the ps5 to compete. With that said the series s should be $100-$150 less than the all digital ps5.