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Best Xeon Processors for Servers

Intel Xeon processor upgrade kits for rack and tower servers — read by tier, generation, core count, base clock, cache and the socket the board actually carries.

Xeon server processors at Uniqcli

How to choose →

A curated selection with live pricing and honest availability — everything below is currently back-ordered, and we quote a dated lead time on request. Every line is sourced through US distribution and screened for NDAA §889 status before checkout, with TAA verified on request.

Entry Bronze, 6-core

Lenovo

Lenovo Intel Xeon Bronze 3104 Hexa-core (6 Core) 1.70 GHz Processor…

4XG7A07207

A Xeon Bronze 3104 at 1.70 GHz across six cores with 8.25 MB of L3 — the bottom rung, and the honest part for a file server or backup target waiting on disks rather than on compute.

Bronze tier: low clock, modest core count, fewer memory channels.

$419.96Back-ordered
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Bronze 2nd Gen, 6-core

Lenovo

Lenovo Intel Xeon Bronze (2nd Gen) 3204 Hexa-core (6 Core) 1.90 GHz…

4XG7A14813

A second-generation Xeon Bronze 3204 at 1.90 GHz across six cores — a small step up the Bronze rung on a newer platform generation.

Bronze tier. Confirm the board's generation before ordering.

$468.60Back-ordered
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E5 v2, 6-core

LENOVO DCG SOURCING

Lenovo Xeon E5-2600 v2 E5-2620 v2 Hexa-core (6 Core) 2.10 GHz Processor…

46W2837

A Xeon E5-2620 v2 at 2.10 GHz across six cores with 15 MB of L3 — an older-generation part, and the road for extending a machine still standardised on the E5 v2 platform.

E5 v2 generation: for existing platforms, never a step forward.

$532.76Back-ordered
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Silver 4110, 8-core

Lenovo

Lenovo Intel Xeon Silver 4110 Octa-core (8 Core) 2.10 GHz Processor…

4XG7A07195

A Xeon Silver 4110 at 2.10 GHz across eight cores with 11 MB of L3 — the mainstream entry to the Silver tier and a common general-purpose virtualisation part.

Silver tier: the usual floor for general-purpose virtualisation.

$746.68Back-ordered
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Silver 2nd Gen, 8-core

Lenovo

Lenovo Intel Xeon Silver (2nd Gen) 4215 Octa-core (8 Core) 2.50 GHz…

4XG7A14809

A second-generation Xeon Silver 4215 at 2.50 GHz across eight cores — the higher-clock eight-core Silver, for work that cares more about per-core speed than about count.

Higher clock at the same core count. Read the licence before the spec.

$937.61Back-ordered
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Silver 2nd Gen, 12-core

Lenovo

Lenovo Intel Xeon Silver (2nd Gen) 4214 Dodeca-core (12 Core) 2.20 GHz…

4XG7A14810

A Xeon Silver 4214 at 2.20 GHz across twelve cores with 16.5 MB of L3 — more cores at a similar clock, the consolidation shape of the Silver tier.

Silver tier, twelve cores. The socket-licensed road.

$1,179.74Back-ordered
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Silver 5th Gen, 8-core

Lenovo

Lenovo Intel Xeon Silver (5th Gen) 4509Y Octa-core (8 Core) 2.60 GHz…

4XG7A93047

A fifth-generation Xeon Silver 4509Y at 2.60 GHz across eight cores with 22.5 MB of L3 — a recent-generation Silver, on a platform with the newer memory controller behind it.

A generation change moves the memory controller as well.

$3,214.14Back-ordered
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Xeon 6 6505P, 12-core

Lenovo

Lenovo Intel Xeon 6505P Dodeca-core (12 Core) 2.20 GHz Processor Upgrade

4XG7B04167

A Xeon 6 6505P at 2.20 GHz across twelve cores with 48 MB of L3 — the entry into the current generation's performance-core line, on a new platform rather than as a drop-in.

Xeon 6: a new-board decision, not an upgrade to an older machine.

$2,991.17Back-ordered
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Gold 2nd Gen, 20-core

LENOVO DCG SOURCING

Intel Xeon Gold (2nd Gen) 6242R Icosa-core (20 Core) 3.10 GHz Processor…

4XG7A38078

A second-generation Xeon Gold 6242R at 3.10 GHz across twenty cores with 35.75 MB of L3 — high clock and high core count together, the R-series shape of the Gold tier.

Gold tier. Check the chassis is rated for this part's thermal band.

$1,903.54Back-ordered
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Gold 6230, 20-core

Advantech

Advantech Intel Xeon Gold (2nd Gen) 6230 Icosa-core (20 Core) 2.10 GHz…

96MPXECA-2.1-28M36

A Xeon Gold 6230 at 2.10 GHz across twenty cores with 27.5 MB of L3 — a broad-middle Gold part for dense general-purpose virtualisation.

Twenty cores at a moderate clock: the consolidation trade.

$3,379.41Back-ordered
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Silver 5th Gen, 16-core

Lenovo

Lenovo Intel Xeon Silver (5th Gen) 4514Y Hexadeca-core (16 Core) 2 GHz…

4XG7A91454

A Xeon Silver 4514Y at 2.00 GHz across sixteen cores with 30 MB of L3 — the top of the current Silver tier, where it starts to overlap the entry Gold parts on core count.

Silver tier, current generation.

$3,883.01Back-ordered
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Gold 5515+, 8-core

Lenovo

Lenovo Xeon Gold (5th Gen) 5515+ Octa-core (8 Core) 3.20 GHz Processor…

4XG7A93051

A fifth-generation Xeon Gold 5515+ at 3.20 GHz across eight cores — few cores at a high clock, which is the shape that keeps a per-core software licence small.

Read this part against the licence, not against the core count.

$5,173.83Back-ordered
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Gold 6526Y, 16-core

Lenovo

Lenovo Intel Xeon Gold (5th Gen) 6526Y Hexadeca-core (16 Core) 2.80 GHz…

4XG7A91466

A Xeon Gold 6526Y at 2.80 GHz across sixteen cores — clock and core count in balance, the middle of the current Gold tier and a common general-purpose choice.

Gold tier, current generation.

$6,335.56Back-ordered
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Platinum 8253, 16-core

Lenovo

Lenovo Intel Xeon Platinum (2nd Gen) 8253 Hexadeca-core (16 Core) 2.20…

4XG7A15746

A second-generation Xeon Platinum 8253 at 2.20 GHz across sixteen cores with 22 MB of L3 — the entry into the top bin, where the wider socket support lives.

Platinum tier: the widest socket-configuration support.

$5,409.84Back-ordered
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Gold 3rd Gen, 24-core

Lenovo

Lenovo Intel Xeon Gold (3rd Gen) 5318Y Tetracosa-core (24 Core) 2.10…

4XG7A63417

A third-generation Xeon Gold 5318Y at 2.10 GHz across twenty-four cores with 36 MB of L3 — a dense Gold part for a hypervisor host consolidating older machines.

Twenty-four cores. Socket-licensed workloads gain most here.

$7,215.66Back-ordered
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Xeon 6 6710E, 64-core

Lenovo

Lenovo Intel Xeon 6 6710E Tetrahexaconta-core (64 Core) 2.40 GHz…

4XG7A96812

A Xeon 6 6710E at 2.40 GHz across sixty-four efficiency cores with 96 MB of L3 — the current generation's scale-out shape, where throughput per rack unit is the number that matters.

Efficiency cores: high count, moderate clock, a new platform underneath.

$7,133.52Back-ordered
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More server processors in the Uniqcli catalog

See all 2,776 server processors

More from across this category. In-stock lines lead, and a back-ordered line carries the same estimated availability its product page does — with live pricing throughout, NDAA §889 screening before checkout and TAA verified on request.

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A Xeon is bought as an upgrade kit for a specific machine, so the server's own supported-processor list comes first: the part is keyed to a socket, a chipset generation and a firmware level. Then read the tier — Bronze for I/O-bound work, Silver for mainstream virtualisation, Gold across the middle range, Platinum at the top core count — and let the licence settle cores against clock.

A server processor is not bought the way a desktop one is. It is bought as an upgrade kit for a specific machine, matched to a socket and a generation the board already commits to, and usually alongside a heatsink and a memory plan rather than on its own. Every row on this page is that shape: an Intel Xeon part, named in the manufacturer's own catalog title, supplied as a processor upgrade for a server platform. These are the vendor's own option kits — the parts a server's configuration guide names — which is why the shelf reads as one supplier rather than as a field of competing brands, and this page is not a comparison between manufacturers.

The tier is the first thing to read and it is a real segmentation rather than marketing. Bronze is the entry step: low clocks, modest core counts, the part for a file server, a small backup target or a machine whose work is I/O rather than compute. Silver is the mainstream tier where most general-purpose virtualisation lands. Gold is the broad middle-to-upper band, and it is where the range is widest — a Gold part can be eight fast cores for a per-core-licensed database or thirty-two moderate ones for a dense hypervisor. Platinum is the top bin, with the highest core counts and the largest socket-count support. Xeon 6 is the current generation and splits its own line between performance cores and efficiency cores, with the E-series parts reaching very high core counts at moderate clocks.

After the tier, three numbers decide the buy. Core count against clock speed is the trade every server purchase makes, and licensing usually settles it — where software is licensed per core, fewer faster cores can cost far less to run than more slower ones, and where it is licensed per socket the opposite is true. Cache follows core count and matters most to databases and analytics. Thermal design power is the constraint the chassis imposes: a board and its cooling are rated for a TDP ceiling, and a part above it will not be supported even if it seats. None of that is decided from a spec sheet alone. Send the server model and its current configuration and the processor can be matched to that platform's own supported-CPU list, its population rules for two-socket boards, and the heatsink the kit requires.

Buyer's checklist

How to choose a Xeon processor for a server

  • Start from the server's own supported-processor list, not from the part. A Xeon upgrade is keyed to a socket, a chipset generation and a firmware level; a part one generation off will not run in the board even where it physically seats. The machine's configuration guide is the document that settles it.
  • Read the tier against the workload. Bronze is for I/O-bound and light general work; Silver for mainstream virtualisation; Gold covers most of the middle and upper range; Platinum is the top core-count bin. Xeon 6 is the current generation and its E-series parts trade clock for very high core counts.
  • Let the licence decide cores versus clock. Per-core-licensed software makes eight fast cores cheaper to operate than sixteen slow ones; per-socket licensing pushes the other way. On most servers the software bill outweighs the processor bill, so price the licence and the part together.
  • Check the TDP against the chassis. Boards and cooling are rated to a thermal ceiling, and the higher-clocked parts in every tier are the ones that exceed it. A part above the platform's rated TDP is unsupported even when it fits the socket.
  • On a two-socket board, populate matched. Both sockets want the same part number — same tier, same clock, same cache, same stepping family — and mismatched processors are a common reason a dual-socket machine boots to one socket or refuses to post.
  • Order the heatsink and the thermal interface with the processor. A CPU upgrade kit and the cooling that goes with it are separate line items on most platforms, and the correct heatsink is specific to the chassis height and the part's TDP band.
  • Plan the memory in the same change. Generation changes move the memory controller as well — DDR4 to DDR5, different channel counts, different supported speeds — so a processor upgrade that crosses a generation is a memory decision too.

Bronze, Silver, Gold, Platinum — and what Xeon 6 changed

The metal tiers set the shape of the part before any individual number does. Bronze parts sit at the bottom of the core count and clock range and support fewer memory channels and fewer sockets; they are honest value in a machine that is waiting on disks or on the network rather than on compute. Silver widens the core count and lifts the clocks into the range general-purpose virtualisation wants. Gold is the largest tier by far on this shelf and the one that repays reading carefully, because two Gold parts can be opposite purchases: a low-core, high-clock part aimed at per-core-licensed workloads sits beside a high-core, moderate-clock part aimed at consolidation, at similar money. Platinum is the top bin, with the highest core counts, the largest cache and support for the widest socket configurations.

Xeon 6 is the current line and it reorganises that ladder. Rather than a single core design across the tiers, it splits into performance-core parts and efficiency-core parts: the P-series keeps high per-core throughput for licence-sensitive and latency-sensitive work, while the E-series pushes core counts far higher at lower clocks for scale-out and containerised workloads where total throughput per rack unit is the number that matters. Both change the platform underneath them — memory generation, channel count, socket — so a Xeon 6 part is a new-server or new-board decision rather than a drop-in upgrade to an older machine. The older Gold and Platinum generations on this page remain the right answer for extending a fleet that is already standardised on them.

An upgrade kit is a platform decision, not a component one

Every part here is titled a processor upgrade, and that word is doing real work. A server CPU option kit is qualified against a specific machine: the socket has to match, the board's firmware has to recognise the part, the chassis cooling has to be rated for its thermal design power, and on a two-socket system the second processor has to be its match. Server vendors publish that list per model, and it is narrower than the socket alone implies — a board can carry a socket type and still support only a subset of the parts made for it. That is why the reliable order starts from the server model rather than from the processor, and why swapping in a part from an adjacent generation is a firmware and support question before it is a performance one.

The rest of the change usually travels with it. A processor upgrade that crosses a generation moves the memory controller too, so the DIMMs, their generation, their supported speed and the channel count all come into scope; a higher-TDP part often needs a different heatsink; and a machine under a support contract may have rules about which parts keep it in scope. Uniqcli quotes the processor, the heatsink and the memory as one document against the specific server, with TAA country-of-origin and NDAA §889 status screened per part number rather than per product family — so a fleet-wide CPU and memory refresh stays on a single quote instead of arriving as three unrelated orders.

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FAQ

Common questions

What is the difference between Xeon Bronze, Silver, Gold and Platinum?
They are Intel's segmentation tiers, and they set core count, clock range, cache, memory support and how many sockets a part can work across. Bronze is the entry step — low clocks and modest core counts, suited to I/O-bound work. Silver is the mainstream tier where most general-purpose virtualisation lands. Gold is the broad middle-to-upper range and is the widest tier by far: it holds both low-core, high-clock parts for per-core-licensed software and high-core parts for consolidation. Platinum is the top bin, with the highest core counts, the largest cache and the widest socket support.
Will a Xeon processor upgrade fit my existing server?
Only if the server's own supported-processor list names it. A Xeon part is keyed to a socket, a chipset generation and a firmware level, and server vendors qualify a narrower set of parts per model than the socket alone allows — so a processor that physically seats can still be unsupported and can fail to post. Read the machine's configuration guide first, check the chassis cooling is rated for the part's thermal design power, and remember that on a two-socket board both sockets want the same part number. Send the server model and its current configuration and the part can be matched against that platform's own list.
Should I buy more cores or faster cores?
Usually the software licence decides, because on most servers it costs more than the processor. Where software is licensed per core — many databases and some virtualisation and analytics products — a smaller number of high-clock cores can be dramatically cheaper to run than a high-core part of the same price, which is exactly why the high-clock, low-core parts exist in the Gold and Platinum tiers. Where licensing is per socket or per host, core count is close to free and consolidation favours the densest part the chassis will cool. Price the licence and the processor together rather than in sequence.
What is Intel Xeon 6 and is it a drop-in upgrade?
Xeon 6 is the current generation, and it is not a drop-in. It splits into performance-core parts, which keep high per-core throughput for licence-sensitive and latency-sensitive work, and efficiency-core parts, which push core counts much higher at lower clocks for scale-out and containerised workloads. Both sit on a different platform from the earlier Gold and Platinum generations — different socket, different memory generation and channel count — so a Xeon 6 processor is a new-server or new-board decision. Extending a fleet already standardised on an earlier generation is usually better served by more of that generation.
Does a processor upgrade need a new heatsink and new memory?
Often both. The heatsink is a separate line item on most server platforms and is specific to the chassis height and the part's thermal design power, so a higher-TDP processor frequently needs a different one. Memory comes into scope whenever the upgrade crosses a generation, because the memory controller moves with the processor — the DDR generation, the supported speeds and the channel count can all change, which makes the DIMMs part of the same decision. Quoting the processor, the cooling and the memory together against the specific server model is the way to avoid a half-finished upgrade.
Can business, government and education buyers order these?
Every line Uniqcli quotes is sourced through US distribution and screened for TAA country-of-origin and NDAA §889 status before checkout — with documentation tied to the specific part number, not a product family.
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