Intel Socket LGA1851 Only Supports DDR5 Memory

[btarunr]

Intel's upcoming desktop platform based on Socket LGA1851 will retire support for the DDR4 memory standard. The socket will only support DDR5. With this, Intel would have gracefully transitioned the market from DDR4 to DDR5, with its current Socket LGA1700 that enables both memory stardards, having supported three generations of Core processors (12th thru 14th). Leaf Hobby, a reliable source with Intel leaks, says that LGA1851 will remain Intel's desktop platform till 2026.

LGA1851 is expected to debut with the company's Core desktop processor generation that succeeds 14th Gen "Raptor Lake Refresh." The socket itself has the same dimensions as LGA1700, and is expected to be cooler-compatible with the older socket. The socket will feature pins for up to 32 PCIe lanes—16 toward PEG, 8 toward DMI chipset bus, and two sets of 4 lanes toward CPU-attached NVMe storage. From these, the 16 PEG lanes, and one set of 4 lanes are expected to be Gen 5, while the chipset bus is expected to remain DMI Gen 4 x8, and the second CPU-attached NVMe slot is expected to be Gen 4. The socket could also feature wiring for updated display I/O, as Intel's next-gen processors are expected to introduce updates to the iGPU.



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[FoulOnWhite]

I'm keeping my LGA1700/12700K setup till this comes along, then will finally switch to DDR5. Hopefully for once LGA1851 might last a (long) while.

 

[katzi]

I'm keeping my LGA1700/12700K setup till this comes along, then will finally switch to DDR5. Hopefully for once LGA1851 might last a (long) while.

I'm planning to swap back to Intel from AMD - I'll be waiting for this new platform also haha.
5800X3D will keep up for now.

 

[ZoneDymo]

I'm keeping my LGA1700/12700K setup till this comes along, then will finally switch to DDR5. Hopefully for once LGA1851 might last a (long) while.

seems to me it would weird to even upgrade to this already, I mean is there really anything to gain from doing that already?

 

[N/A]

What follows after z890/990, z1090. 'm definitely waiting for z990 or whatever AMD offers x990 with Ryzen 9 9900

 

[zmeul]

seems to me it would weird to even upgrade to this already, I mean is there really anything to gain from doing that already?

even upgrading from 12th to 13th is a bump in performance, and there will be 14th gen this October

 

[Gameslove]

Strange that to do this, DDR4 more attractive with CL14 (16) and costs less, as DDR5 with CL 38 or more...

 

[Outback Bronze]

I'm planning to swap back to Intel from AMD - I'll be waiting for this new platform also haha.
5800X3D will keep up for now.

Any particular reason why (going from AMD to Intel) there matey?

 

[Deleted member 185088]

even upgrading from 12th to 13th is a bump in performance, and there will be 14th gen this October

There is always tiny improvement going from to gen to gen (except 10th to 11th), but if games are the target better spend the money on a GPU (lots of money).

 

[Daven]

even upgrading from 12th to 13th is a bump in performance, and there will be 14th gen this October

All three generations are the exact same cores so no change in IPC. Only slight changes in cores, cache and clocks with the 14th gen being just a rebrand/refresh so that OEMs can sell new models.

No reason to upgrade across the three gens if staying in the same SKU level (i3, i5, etc). Going from i3/i5 to i7/i9 might be useful depending on whether you have changed your computing work to needing more cores.

 

[kondamin]

I'm planning to swap back to Intel from AMD - I'll be waiting for this new platform also haha.
5800X3D will keep up for now.

I remember thinking the other way around during the bulldozer era.
I'm still expecting intel 10nm+++++ as something will popup delaying Meteor Lake

 

[Daven]

I remember thinking the other way around during the bulldozer era.
I'm still expecting intel 10nm+++++ as something will popup delaying Meteor Lake

Meteor Lake might as well be considered cancelled. Limited laptop SKUs and no desktop or server.

 

[TumbleGeorge]

whatever AMD offers x990 with Ryzen 9 9900

Ryzen 9000 series if AMD continues to uze ZEN architecture when released socket AM6. Number of chipset lags behind and probably will be 8xx in 2026-2027.

 

[EatingDirt]

Strange that to do this, DDR4 more attractive with CL14 (16) and costs less, as DDR5 with CL 38 or more...

DDR4 is not more attractive anymore. That was maybe a good argument a year ago, but DDR5 is only marginally more expensive than DDR4 now.

Just a quick look at PCpartspicker:
A DDR4 3600 CL16 2x16 kit at $65(only 3 below $90).
A DDR5 6000 CL30 2x16 kit is $90(10 kits below $100).
The absolute cheapest DDR4 RAM (2x8 kit) is $26.
The absolute cheapest DDR5 RAM (2x8 kit) is $37.

 

[Beginner Macro Device]

The socket itself has the same dimensions as LGA1700

True madmen. They really do plan on having more people buying socket brackets.

I'm very low demanding regarding CPUs, even an i5-11600K will be enough for me for the next 5 or maybe even 7 years so I can skip this gen as well. Will probably migrate to Ryzen 7700 in a year from now but doubt it hard.

 

[loracle706]

DDR5 timings are awful and still very expensive, why doing this to us ?

 

[Gameslove]

DDR4 is not more attractive anymore. That was maybe a good argument a year ago, but DDR5 is only marginally more expensive than DDR4 now.

Just a quick look at PCpartspicker:
A DDR4 3600 CL16 2x16 kit at $65(only 3 below $90).
A DDR5 6000 CL30 2x16 kit is $90(10 kits below $100).
The absolute cheapest DDR4 RAM (2x8 kit) is $26.
The absolute cheapest DDR5 RAM (2x8 kit) is $37.

Ok, but CL 30 not so good...

 

[WhitetailAni]

Ok, but CL 30 not so good...

For DDR5 it's perfectly fine. DDR3 ran at CL9, DDR2 at 6, and DDR1 at 1.5. CL goes up with each gen, but frequency does as well (the max speed of DDR1 was 400 MT/s but for DDR2 it was 800, DDR3 it was 1600 or even up to 2133.

Additionally, a single stick of DDR5 is two channels of RAM. Two sticks is quad channel.

 

[chrcoluk]

DDR5 timings are awful and still very expensive, why doing this to us ?

Their current chipset supports DDR4, which is better than the competition, although one can argue AM4 is still a current chipset also as it was given new X3D chips.

It is understandable DDR4 will get retired. If you dont want to buy DDR5, then get either 5800X3D or a Intel LGA1700 chip.

 

[Steevo]

Intel makes a new socket..... I suppose it is a new day.

 

[Od1sseas]

DDR5 timings are awful and still very expensive, why doing this to us ?

Just tune them

 

[LFaWolf]

DDR4 is not more attractive anymore. That was maybe a good argument a year ago, but DDR5 is only marginally more expensive than DDR4 now.

Just a quick look at PCpartspicker:
A DDR4 3600 CL16 2x16 kit at $65(only 3 below $90).
A DDR5 6000 CL30 2x16 kit is $90(10 kits below $100).
The absolute cheapest DDR4 RAM (2x8 kit) is $26.
The absolute cheapest DDR5 RAM (2x8 kit) is $37.

Having DDR4 support allows people with good DDR4 to reuse their memory. If you are doing a new build and need memory anyway, sure, DDR5 makes more sense.

 

[Tomorrow]

DDR4 is not more attractive anymore. That was maybe a good argument a year ago, but DDR5 is only marginally more expensive than DDR4 now.

Just a quick look at PCpartspicker:
A DDR4 3600 CL16 2x16 kit at $65(only 3 below $90).
A DDR5 6000 CL30 2x16 kit is $90(10 kits below $100).
The absolute cheapest DDR4 RAM (2x8 kit) is $26.
The absolute cheapest DDR5 RAM (2x8 kit) is $37.

Especially when you consider the price of 3600-4000 CL14 kits. The 6000 CL30 kits are half as cheap at 2x16GB capacities because 2x16GB is the most common DDR5 capacity where as with DDR4 it was 2x8GB.

Ok, but CL 30 not so good...

6000 CL30 is literally the best there is right now in terms of speed/latency. Yes there are some lower speed CL28 kits but they're slower.

 

[AnotherReader]

For DDR5 it's perfectly fine. DDR3 ran at CL9, DDR2 at 6, and DDR1 at 1.5. CL goes up with each gen, but frequency does as well (the max speed of DDR1 was 400 MT/s but for DDR2 it was 800, DDR3 it was 1600 or even up to 2133.

Additionally, a single stick of DDR5 is two channels of RAM. Two sticks is quad channel.

Besides, the slightly higher latency is compensated for by the two independent command channels for each DDR5 DIMM and the doubled banks. In addition, the REFsb command spreads DRAM refresh across banks rather than refreshing all banks. DDR5 is better than DDR4 in many ways, and quite a few games run faster with DDR5. The 13900k is limited by DDR4 in some games: in Cyberpunk, 1% lows are 19% better with DDR5 at 1080p. A 13900k with DDR4 is slower than a 12900k with DDR5 in this game.

 

[Tomorrow]

Two sticks is quad channel.

Nope. It's still dual channel from the CPU even if it has quad rank internal.