Intel Xeon Gold 6140 18-core LGA 3647
Le processeur Intel Xeon Gold 6140 offre 18 cœurs et 36 threads avec une fréquence boost de 3,7 GHz, un cache L3 de 24,75 Mo et un TDP de 140 W, idéal pour les charges de travail serveur exigeantes. Il prend en charge jusqu'à 768 Go de mémoire DDR4 ECC à 2666 MHz, avec des fonctionnalités de sécurité matérielle renforcée. Ce CPU est recommandé pour les administrateurs de centres de données et les entreprises gérant des workloads de cloud hybride ou de stockage, où la fiabilité et la performance multicœur priment.
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Aperçu
The 30-Second Version
A retired 18-core server beast that's still a killer deal for homelab builders. Just don't expect it to feel fast in single-threaded desktop work.
Pros & Cons
Points forts
- 18 cores and 36 threads for serious VM and container density 84th
- Supports up to 768GB of ECC DDR4, perfect for memory-hungry homelab setups 79th
- AVX-512 support gives it a real edge in specific compute workloads 73rd
- Used prices around $407 to $430 make it a bargain for the core count
Points faibles
- Single-thread performance is mediocre, so it feels sluggish in everyday tasks
- LGA 3647 motherboards are expensive and getting harder to find
- No integrated graphics, so you'll need a cheap GPU or headless setup
- Renewed units often arrive with leftover thermal paste to clean off
L'avis des propriétaires
The Word on the Street
Les preuves
Performance
The multi-thread score of 23,535 in PassMark lands this Xeon well above average for its class, and our database puts it in the 78th percentile overall. That's the headline. But the single-thread score of 1,973 is dead average, and you'll feel it in anything that leans on one or two cores. AVX-512 support is a nice bonus for certain scientific and AI workloads, and the 140W TDP is surprisingly reasonable for 18 cores. The real surprise is efficiency: it ranks in the 72nd percentile, which is better than we expected from a 14nm part this old.
Specifications
Full Specifications
Processor
| Brand | Intel |
| Series | Xeon Gold |
| Model | 6140 |
| Class | server |
| Process | 14 |
Cores & Clocks
| Cores | 18 |
| Threads | 36 |
| Base Clock | 2300 |
| Boost Clock | 3700 |
Cache
| L2 Cache | 18 |
| L3 Cache | 24.75 MB |
Performance
| PassMark Multi | 23535 |
| PassMark Single | 1973 |
Memory
| Memory Type | DDR4 |
| Max Speed | 2666 |
| Max Memory | 768 |
| ECC | Yes |
Platform & Power
| Socket | LGA 3647 |
| TDP | 140 |
vs Competition
Against something like the AMD Ryzen 7 9800X3D, this Xeon gets absolutely destroyed in single-thread and gaming, but that's not the fight it's trying to win. The 9800X3D is a gaming and desktop chip with 8 cores; the 6140 is a server part with 18 cores and ECC support. For a homelab NAS or Proxmox box, the Xeon's core count and memory ceiling make it the better tool. The other 'competitors' in our list, like the G.Skill Trident Z Neo and that Micro Center bundle, aren't even CPUs in the same category, so ignore them. If you need a cheap, dense server CPU, this is your pick. If you need a fast desktop, look elsewhere.
| Spec | Intel Xeon Gold 6140 | AMD Ryzen 7 9800X3D | SMC EPYC 9555P | HP Xeon 6526Y | CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor | D&H Core i9 BX80673I99960X |
|---|---|---|---|---|---|---|
| Cores | 18 | 8 | 64 | 16 | 24 | 16 |
| Threads | 36 | 16 | 128 | 32 | 48 | 32 |
| Boost Clock Mhz | 3700 | 5200 | 4400 | 3900 | 4000 | 4400 |
| L3 Cache Mb | 24.75 | 96 | 256 | 37 | 128 | 22 |
| Tdp W | 140 | 120 | 360 | 195 | 200 | 165 |
| Socket | LGA 3647 | AM5 | AMD Socket SP5 | LGA 4677 | AMD Socket SP3 | LGA 2066 |
| Integrated Graphics | - | AMD Radeon Graphics | - | No | - | - |
| Compare | Compare | Compare | Compare | Compare |
| Produit | AI | Feature | Platform | Efficiency | Multi Thread | Preuve sociale | Affordability | Single Thread |
|---|---|---|---|---|---|---|---|---|
| Intel Xeon Gold 6140 | 83.7 | 20.7 | 59.8 | 73.2 | 78.8 | 46.3 | 17.9 | 53 |
| AMD Ryzen 7 9800X3D Compare | 91.6 | 98.5 | 95.2 | 88.9 | 89.2 | 96.4 | 23.7 | 95.1 |
| SMC EPYC 9555P Compare | 99.3 | 77.4 | 96.7 | 89.7 | 99.4 | 0 | 0.4 | 85.9 |
| HP Xeon 6526Y Compare | 92.1 | 77.4 | 90.8 | 79.4 | 89.9 | 0 | 2.7 | 80.6 |
| CG CHIPS GATE EPYC 6GK7443-1EX30-0XE0 1PC New 6GK7443-1EX30-0XE0 Communications Processor Compare | 94.8 | 77.4 | 84.5 | 85.1 | 93.9 | 36.4 | 5.3 | 80.5 |
| D&H Core i9 BX80673I99960X Compare | 89.1 | 63 | 81.7 | 74.9 | 84.5 | 70.7 | 17.4 | 73.8 |
Prix
Value & Pricing
At $407 to $430 in the US, this is a solid deal if you need cores and memory bandwidth more than raw speed. But watch the European listings: prices swing from EUR 664 all the way up to EUR 924 depending on the seller, and that spread is wild. If you're buying in Europe, shop around and don't pay the high end. The sweet spot is the lower end of that range, anything near EUR 664 is fair, anything near EUR 924 is someone hoping you won't check other listings.
En savoir plus
Overview
The Intel Xeon Gold 6140 is a retired server workhorse that still makes a lot of sense for homelab builders on a budget. You're getting 18 cores, 36 threads, and support for up to 768GB of ECC DDR4, all for around $407 to $430 on the used market. That's a lot of parallel crunch for the money, assuming you already have or are willing to hunt down an LGA 3647 board.
The one thing to know? This chip is all about multi-threaded grunt, not snappy single-core speed. A 2.3GHz base clock and 3.7GHz boost won't impress anyone coming from a modern desktop CPU, but for VMs, containers, and media servers, it's a quiet monster.
Common Questions
Q: Is this CPU good for gaming?
No. The single-thread score is average at best, and the 2.3GHz base clock will bottleneck most games. This is a server chip, not a gaming chip.
Q: What motherboard do I need for the Xeon Gold 6140?
You need an LGA 3647 socket board, typically a server or workstation board like the Supermicro X11 series. They're not cheap, so factor that into your budget.
Q: Can I use regular DDR4 RAM with this processor?
Technically yes, but you'll want ECC DDR4 for stability, especially in a server. The chip supports up to 768GB across six memory channels, so load it up if you can.
Who Should Skip This
If you're looking for a snappy desktop CPU for gaming or everyday productivity, this isn't it. The single-thread performance will frustrate you, and the platform costs don't make sense for that use case. Go grab a modern Ryzen or Core i5 instead. This Xeon is for people who need cores, ECC memory, and cheap parallel compute, not for anyone chasing frame rates or fast boot times.
Verdict
Buy it if you're building a homelab server, a Proxmox node, or a NAS that needs to run a dozen services at once. The core count, ECC support, and used price make it a no-brainer for that use case. Just know you're buying into a dead-end platform: LGA 3647 boards are pricey and won't get any newer CPUs. For the right project, though, this is one of the best value server chips you can grab right now.
