Thursday, September 21st 2023

Intel LGA-1851 "Arrow Lake" Socket Detailed

by
AleksandarK
 Discuss (23 Comments)
Thanks to the 3D renders and technical drawings obtained by Igor's Lab, we have insights into the structure of Intel's next-generation LGA-1851 socket for Arrow Lake processors. Scheduled to arrive in mid-2024, the LGA-1851 socket was originally intended for Meteor Lake-S desktop processors. However, the socket is now awaiting Arrow Lake since Meteor Lake is now a mobile-only processor generation. The first notable thing about LGA-1851 is that it will directly connect a dedicated PCIe 5.0 x4 interface to the CPU, besides the x16 lanes going to the GPU. This results in native support for high-speed PCIe 5.0 NVMe SSDs that can achieve speeds of over 12 GB/s in both read and write workloads.

Intel Arrow Lake-S will be available with eight P-cores and 16 E-cores in SKUs with different combinations of the two. The accompanying 800 series chipset includes Z890, B860, and H810 models, with an evident absence of H870 SKU. There will be W880 and Q870 workstation-grade chipsets as well. It is worth pointing out that Arrow Lake will enable DRAM capacities of up to 48 GB per DIMM at 6400 MT/s. We expect to hear more about Arrow Lake-S as we near the 2024 launch date and we get to see the Intel 20A node being used in client products. Below, you can see the technical drawings of the Independent Loading Mechanism (ILM) and chipset 3D models.
3D drawing of ILM and chipset.
Technical drawings of the LGA-1851 socket.
Source: Igor's Lab

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23 Comments on Intel LGA-1851 "Arrow Lake" Socket Detailed

#1
ZoneDymo
so is it cooler compatible with previous sockets?
Posted on Reply
#2
Space Lynx
Astronaut
ZoneDymoso is it cooler compatible with previous sockets?
that's probably going to vary by company, if you own Noctua, you never have to worry about these kinds of things.
Posted on Reply
#3
bug
Sad to hear there will be no H870, I found H670 much more palatable than its Z counterpart :(
Posted on Reply
#4
Space Lynx
Astronaut
bugSad to hear there will be no H870, I found H670 much more palatable than its Z counterpart :(
seeing as you have a good chip in the 12600k already, i'd say wait for lunar lake or panther lake anyway, don't take an arrow to the knee
Posted on Reply
#5
las
I can't wait for "15700K" vs "8x00X3D"

Hopefully AMD will put 3D cache on all cores for next 3D chips. I kinda want more than 8 cores next but I will not buy gimped 3D chips like 7900X3D or Intel chips with less than 8 perf cors for that matter.

Zen 5 vs Arrow Lake is going to be a great next gen battle. And AMD/TSMC probably won't have process advantage this time :laugh:
Posted on Reply
#6
bug
Space Lynxseeing as you have a good chip in the 12600k already, i'd say wait for lunar lake or panther lake anyway, don't take an arrow to the knee
I never plan an upgrade before I see hard performance numbers. And I'm always happy to skip generations (before the 12600k I had a 6600k and before that a 2500k).
Posted on Reply
#7
FoulOnWhite
lasI can't wait for "15700K" vs "8x00X3D"

Hopefully AMD will put 3D cache on all cores for next 3D chips. I kinda want more than 8 cores next but I will not buy gimped 3D chips like 7900X3D or Intel chips with less than 8 perf cors for that matter.

Zen 5 vs Arrow Lake is going to be a great next gen battle. And AMD/TSMC probably won't have process advantage this time :laugh:
Possibly Intel will have 3d cache by then too, so will indeed be interesting
Posted on Reply
#8
dalekdukesboy
Space Lynxseeing as you have a good chip in the 12600k already, i'd say wait for lunar lake or panther lake anyway, don't take an arrow to the knee
Such a good Skyrim reference…
Posted on Reply
#9
Telstar
lasI can't wait for "15700K" vs "8x00X3D"
By the time 8000x3d will launch there'll be already intel 16th gen, likely with 3d cache too.
Posted on Reply
#10
Arco
TelstarBy the time 8000x3d will launch there'll be already intel 16th gen, likely with 3d cache too.
Source?
Posted on Reply
#11
Telstar
ArcoSource?
none, just my own forecast :)
Posted on Reply
#12
pressing on
ZoneDymoso is it cooler compatible with previous sockets?
There has never been an LGA1700 socket. There has always been a dual LGA-17xx/LGA-18xx socket and every LGA-17xx Alder Lake/Raptor Lake desktop socket has been marked as such. See graphic below (source: TechPowerUp).



Arrow Lake is going to be LGA-18xx. For this reason I don't see any issues with Cooler compatibility, particularly as the Z height of the Arrow Lake processor is the same as Alder Lake/Raptor Lake.
Posted on Reply
#13
FoulOnWhite
pressing onThere has never been an LGA1700 socket. There has always been a dual LGA-17xx/LGA-18xx socket and every LGA-17xx Alder Lake/Raptor Lake desktop socket has been marked as such. See graphic below (source: TechPowerUp).



Arrow Lake is going to be LGA-18xx. For this reason I don't see any issues with Cooler compatibility, particularly as the Z height of the Arrow Lake processor is the same as Alder Lake/Raptor Lake.
That's good as i have just got a Alphacool Core 1 blcok for my LGA1700 board
Posted on Reply
#14
Michaelgr
Intel never said meteor lakes will only be for laptops
Posted on Reply
#16
JoeTheDestroyer
lasHopefully AMD will put 3D cache on all cores for next 3D chips.
Until they fix the thermal and voltage limitations of the stacked cache, I hope the exact opposite. I quite like having both a high-cache and a high-clockspeed option in the same system.
Posted on Reply
#17
Six_Times
I've been waiting so long for Arrow and Meteor Lake, my hair has since turned gray.
Posted on Reply
#18
Minus Infinity
TelstarBy the time 8000x3d will launch there'll be already intel 16th gen, likely with 3d cache too.
8000 series are launching Q2 2024 by all reports. Arrow Lake maybe late Q3, possibly Q4. v-cache models from AMD may well be out by the time Arrow lake arrives. AMD would like to take wind out of Intel's sails by launching v-cache models when Arrow Lake is announced.
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#19
bug
Minus Infinity8000 series are launching Q2 2024 by all reports. Arrow Lake maybe late Q3, possibly Q4. v-cache models from AMD may well be out by the time Arrow lake arrives. AMD would like to take wind out of Intel's sails by launching v-cache models when Arrow Lake is announced.
Which reports would those be? All I'm seeing is "before 2024 ends": en.wikipedia.org/wiki/Zen_5
Posted on Reply
#20
las
TelstarBy the time 8000x3d will launch there'll be already intel 16th gen, likely with 3d cache too.
Zen 5 is 1H/2024, Arrow Lake is Q3/Q4 and then Ryzen 5 with 3D cache probably launches the same time to counter it
Posted on Reply
#22
Minus Infinity
bugWhich reports would those be? All I'm seeing is "before 2024 ends": en.wikipedia.org/wiki/Zen_5
Multiple sources are saying Zen 5 is on target for H1 release, possibly early Q2. So far performance improvements are stellar, with IPC > 25%. Zen 5 is shaping up to be a beast. I just wish they'd stop dicking around with v-cache and launch X models at the same time. Still I'll be waiting for Arrow Lake to release and see how they go head-to-head before committing to any upgrades for my 3700X based PC.
Posted on Reply
#23
bug
Minus InfinityMultiple sources are saying Zen 5 is on target for H1 release, possibly early Q2. So far performance improvements are stellar, with IPC > 25%. Zen 5 is shaping up to be a beast. I just wish they'd stop dicking around with v-cache and launch X models at the same time. Still I'll be waiting for Arrow Lake to release and see how they go head-to-head before committing to any upgrades for my 3700X based PC.
Ah, ok then :wtf:
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