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Xeon Gold 5218R vs Xeon Gold 5318Y

The Xeon Gold 5218R and the Xeon Gold 5318Y are both server processors we supply tested from Hong Kong, and the figures below are the same ones published on each product page. They share the same supply and warranty terms and separate on cores / threads, socket, tdp, so the decision is less about "which is better" and more about which of those differences your platform or workload can actually use.

Nothing on this page is a price: component pricing moved too fast in 2026 for a printed figure to stay honest, so both are quoted on request against confirmed stock with the date the quote holds until. If you are replacing a part, send the platform and we will confirm the population before you commit.

Side by side

Xeon Gold 5218R vs Xeon Gold 5318Y specifications

Specification	Xeon Gold 5218R	Xeon Gold 5318Y
Cores / Threads	20 cores / 40 threads	24 cores / 48 threads
Socket	FCLGA3647	LGA4189 (Socket P+)
TDP	125 W	165W
Cache	27.5 MB	30MB L2 + 36MB L3
Memory	DDR4-2667, 6 channels, up to 1 TB, ECC supported	8-channel DDR4-2933, ECC
PCIe	PCIe 3.0, 48 lanes	PCIe 4.0, 64 lanes
Scalability	2S - dual-socket	2P (dual-socket)
Processor	Intel Xeon Gold 5218R (2nd Gen Xeon Scalable, Cascade Lake)	Intel Xeon Gold 5318Y
sSpec / stepping	SRGZ7 / B1 (Intel ARK ordering data)	not stated
Ordering codes	Tray CD8069504446300; boxed retail BX806955218R, both sSpec SRGZ7 at stepping B1 (Intel ARK ordering data)	not stated
Instruction set extensions	Intel SSE4.2, AVX, AVX2, AVX-512	not stated
Launch	Launched Q1'20; Intel servicing status: ESU Notification Issued	April 2021
Clock	2.10 GHz base / 4.00 GHz max	2.1GHz base
Turbo (all-core / max)	not stated	2.6GHz / 3.4GHz
Interconnect	not stated	3× 11.2 GT/s
sSpec	not stated	SRKXE

Rows that differ are highlighted. Figures are the same ones published on each product page; where a figure is community-sourced rather than vendor-published it is stated on that page. Confirm every part against your build sheet when ordering.

Where they differ

·Xeon Gold 5318Y has the higher core count (24 vs 20); Xeon Gold 5218R trades that for something else.
·Socket — Xeon Gold 5218R: FCLGA3647; Xeon Gold 5318Y: LGA4189 (Socket P+).
·Xeon Gold 5218R is the better figure for power draw (125 W vs 165W).
·Xeon Gold 5318Y has the higher cache (30 vs 27.5); Xeon Gold 5218R trades that for something else.
·Memory — Xeon Gold 5218R: DDR4-2667, 6 channels, up to 1 TB, ECC supported; Xeon Gold 5318Y: 8-channel DDR4-2933, ECC.
·PCIe — Xeon Gold 5218R: PCIe 3.0, 48 lanes; Xeon Gold 5318Y: PCIe 4.0, 64 lanes.
·Scalability — Xeon Gold 5218R: 2S - dual-socket; Xeon Gold 5318Y: 2P (dual-socket).
·Launch — Xeon Gold 5218R: Launched Q1'20; Intel servicing status: ESU Notification Issued; Xeon Gold 5318Y: April 2021.
·Clock — Xeon Gold 5218R: 2.10 GHz base / 4.00 GHz max; Xeon Gold 5318Y: 2.1GHz base.

Decision

Which one to buy

For processors the useful split is throughput versus frequency. More cores per socket wins on virtualisation density, parallel batch work and multi-tenant hosting, where the scheduler can keep every core busy; higher base and boost clocks win where the workload is latency-sensitive or licensed per core, and the extra cores would sit idle. Check the socket and the platform's memory generation before anything else: a CPU is only useful in a board that takes it, and the two models above are interchangeable only when the socket matches. TDP also sets the cooling and power budget per node.

Choose the Xeon Gold 5218R if

·Socket: FCLGA3647
·You need lower power draw — the Xeon Gold 5218R lists 125 W against 165W on the Xeon Gold 5318Y.
·Memory: DDR4-2667, 6 channels, up to 1 TB, ECC supported

Full Xeon Gold 5218R specification →

Choose the Xeon Gold 5318Y if

·You need more core count — the Xeon Gold 5318Y lists 24 cores / 48 threads against 20 cores / 40 threads on the Xeon Gold 5218R.
·Socket: LGA4189 (Socket P+)
·You need more cache — the Xeon Gold 5318Y lists 30MB L2 + 36MB L3 against 27.5 MB on the Xeon Gold 5218R.

Full Xeon Gold 5318Y specification →

Photos

What the two look like

Xeon Gold 5218R

Photo from the Xeon Gold 5218R page. Every unit's label is read against your order before dispatch.

Xeon Gold 5318Y

Photo from the Xeon Gold 5318Y page. Every unit's label is read against your order before dispatch.

Frequently asked questions

How much do the Xeon Gold 5218R and the Xeon Gold 5318Y cost?

We do not publish prices for either: DRAM and CPU pricing moved too fast in 2026 for a printed figure to stay honest. Send the quantity, the platform and the condition you want and we quote both against confirmed stock, with the date the figure holds until.

What is the main difference between the Xeon Gold 5218R and the Xeon Gold 5318Y?

Cores / Threads (Xeon Gold 5218R: 20 cores / 40 threads; Xeon Gold 5318Y: 24 cores / 48 threads); Socket (Xeon Gold 5218R: FCLGA3647; Xeon Gold 5318Y: LGA4189 (Socket P+)); TDP (Xeon Gold 5218R: 125 W; Xeon Gold 5318Y: 165W).

Can I use the Xeon Gold 5218R and the Xeon Gold 5318Y in the same system?

No. They use different sockets (FCLGA3647 vs LGA4189 (Socket P+)), so they need different server platforms and cannot share a board.

Which one should I buy?

Buy the one whose strong points match the job: see the "Choose" section above. If you are replacing an existing part, send the platform or the old part number and we will confirm compatibility before you order.

What condition are they in, and do you ship worldwide?

Both are supplied tested with a 1-year written warranty. Condition is stated line by line before you order — new, decommissioned pull or OEM tray — and we ship worldwide from the Hong Kong warehouse with full export documentation, typically 3–7 days by air.

Get a quote for either — or both

Tell us the quantity, the platform and the condition you need. We confirm stock and put a firm figure in writing with the date it holds until.

Request a Quote

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