Complete LGA 2011-v3 Guide: All Processors, Compatibility & 2025 Viability

LGA2011‑3 platform — overview

Introduced in 2014, the LGA2011‑3 platform represented a significant advancement in Intel’s high‑end desktop (HEDT) and server lineup. Built on Haswell‑E and later Broadwell‑E architectures, it succeeded the aging LGA2011 socket while introducing DDR4 support, higher core counts, and much higher memory bandwidth and I/O throughput. It’s also commonly referred to as LGA2011‑v3.

This platform served two primary markets:

  • The HEDT segment, featuring Core i7 processors like the 5960X and 6950X for enthusiasts, content creators, and overclockers;
  • The server/workstation market, with Xeon E5‑2600 v3/v4 series offering up to 22 cores for enterprise workloads.

Between 2019–2024, the socket experienced renewed popularity. Enterprise server refresh cycles saturated secondary markets with affordable processors, while Chinese motherboards enabled budget system builds suitable for gaming and workstation use.

This guide provides a deep dive into LGA2011‑3, examining its architectures and standout processors, while assessing whether this platform remains viable in 2025.

LGA2011‑3 Processor Architectures and Features

Haswell‑E / Haswell‑EP

Haswell‑EP logo

In August 2014, Intel introduced the Haswell‑E platform for high‑end desktops, along with the server‑oriented Haswell‑EP Xeon E5 v3 series. Both shared the same 22 nm microarchitecture and socket LGA2011‑3, bringing quad‑channel DDR4 memory and up to 18‑core CPUs to market.

Key architectural features:

  • Process node: 22 nm Tri‑Gate
  • Haswell core design (2013), adapted for HEDT and server applications
  • DDR4 memory controller, quad‑channel, up to DDR4‑2133 officially (some models also supported DDR3)
  • AVX2 and FMA3 instruction support for SIMD acceleration
  • No integrated GPU, as expected for workstation/server‑grade silicon
  • Up to 40 PCIe 3.0 lanes on high‑end parts for GPU and storage expansion
  • TSX (Transactional Synchronization Extensions) present in early revisions but often disabled due to errata
  • Up to 8 cores (Core i7) and up to 18 cores (Xeon E5‑2600 v3) in a monolithic die

Haswell‑E brought the first DDR4‑enabled platform to both enthusiasts and enterprise users. While the i7 lineup appealed to overclockers and creators, the Xeon v3 family delivered massive multi‑threaded performance for data centers, rendering farms, and later — budget DIY workstations.

One notable v3‑era tweak was a turbo boost modification that allowed enthusiasts to lock the maximum single‑core turbo across all cores, often yielding 300–500 MHz gains (with higher heat and power). It became popular among LGA2011‑3 builders. For the current method, see our S3TurboTool tutorial.

Broadwell‑E / Broadwell‑EP

Broadwell‑EP logo

In mid‑2016, Intel released the Broadwell‑E family for HEDT alongside the server‑oriented Broadwell‑EP Xeon E5 v4 lineup. Both used the 14 nm process and remained compatible with LGA2011‑3. Thanks to the die shrink and tuning, Broadwell offered more cores, better efficiency, and slightly improved IPC over Haswell.

Key architectural features:

  • Process node: 14 nm
  • Refined Haswell core with modest IPC gains (~5–8%)
  • DDR4 quad‑channel controller, now officially up to DDR4‑2400
  • Up to 10 cores (Core i7) and up to 22 cores (Xeon E5) in a monolithic die
  • Turbo Boost Max Technology 3.0 (select models) — prioritizes the fastest core for better single‑thread performance
  • AVX2 and FMA3 retained; TSX generally re‑enabled and functional. AVX frequency reduction now affects only cores actively running AVX
  • Up to 40 PCIe 3.0 lanes on enthusiast and high‑end server parts
  • Improved power efficiency and thermals versus Haswell‑E

Broadwell‑E marked the peak of Intel’s monolithic HEDT/server CPUs before the shift toward mesh interconnects and more scalable designs. Its Xeon variants — especially high‑core‑count E5 v4 chips — remain popular in budget workstations, virtualization hosts, and enthusiast builds, helped by affordable Chinese X99 motherboards.

The turbo boost modification was patched for this generation, but architectural improvements combined with noticeably lower heat and power let Broadwell compete successfully with v3 parts even without the mod.

All Socket 2011‑3 Processors and Their Specifications

Core i7 5000 Series

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMultiplierPCIe LanesTDP
Core i7-5820K 6 / 123.3 GHz3.6 GHz15 MBUnlocked28140 W
Core i7-5930K 6 / 122.1 GHz2.6 GHz25 MBUnlocked40140 W
Core i7-5960X 8 / 162.6 GHz3.2 GHz25 MBUnlocked40140 W

Core i7 6000 Series

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMultiplierPCIe LanesTDP
Core i7-6800K 6 / 123.4 GHz3.8 GHz15 MBUnlocked28140 W
Core i7-6850K 6 / 123.6 GHz3.8 GHz15 MBUnlocked40140 W
Core i7-6900K 8 / 163.2 GHz3.7 GHz20 MBUnlocked40140 W
Core i7-6950X 10 / 203.0 GHz3.5 GHz25 MBUnlocked40140 W

Xeon E5 1600 v3

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMultiplierMemory supportTDP
Xeon e5 1603 v34 / 42.8 Ghz-10 mbLockedDDR4-1866140 W
Xeon e5 1607 v34 / 43.1 Ghz-10 mbLockedDDR4-1866140 W
Xeon e5 1620 v34 / 83.5 Ghz3.6 Ghz10 mbLockedDDR4-2133140 W
Xeon e5 1630 v34 / 83.7 Ghz3.8 Ghz10 mbLockedDDR4-2133140 W
Xeon e5 1650 v36 / 123.5 Ghz3.8 Ghz15 mbUnlockedDDR4-2133140 W
Xeon e5 1660 v38 / 163.0 Ghz3.5 Ghz20 mbUnlockedDDR4-2133140 W
Xeon e5 1680 v38 / 163.2 Ghz3.8 Ghz20 mbUnlockedDDR4-2133140 W
Xeon e5 1681 v310 / 202.9 Ghz3.5 Ghz25 mb?DDR4-2133135 W
Xeon e5 1686 v312 / 242.6 Ghz3.3 Ghz30 mb?DDR4-2133135 W
Xeon e5 1691 v314 / 282.5 Ghz3.4 Ghz35 mb?DDR4-2133135 W

Most interesting models: E5‑1650, E5‑1660, and E5‑1680. Unlocked processors designed for boards that support overclocking. Note that frequencies above ~4.2 GHz generate significant heat and power draw.

Models E5‑1681, 1686, and 1691 were produced in small batches and are extremely rare.

Xeon E5 1600 v4

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMemory supportTDP
Xeon e5 1603 v44 / 42.8 Ghz-10 mbDDR4-2133140 W
Xeon e5 1607 v44 / 43.1 Ghz-10 mbDDR4-2133140 W
Xeon e5 1620 v44 / 83.5 Ghz3.8 Ghz10 mbDDR4-2400140 W
Xeon e5 1630 v44 / 83.7 Ghz4.0 Ghz10 mbDDR4-2400140 W
Xeon e5 1650 v46 / 123.6 Ghz4.0 Ghz15 mbDDR4-2400140 W
Xeon e5 1660 v48 / 163.2 Ghz3.8 Ghz20 mbDDR4-2400140 W
Xeon e5 1680 v48 / 163.4 Ghz4.0 Ghz20 mbDDR4-2400140 W

Intel dropped unlocked multipliers in this series, retaining them only in some QS samples.

Most interesting models:

  • E5‑1650 v4 — 6 cores with decent clocks; most budget‑friendly gaming choice
  • E5‑1660 v4 — affordable 8‑core; also good for home PCs

Xeon E5 2600 v3

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMemory supportTDP
Xeon e5 2603 v36 / 61.6 Ghz-15 mbDDR4-160085 W
Xeon e5 2608L v36 / 122.0 Ghz-15 mbDDR4-186652 W
Xeon e5 2609 v36 / 61.9 Ghz-15 mbDDR4-160085 W
Xeon e5 2618L v38 / 162.3 Ghz3.4 Ghz20 mbDDR4-186675 W
Xeon E5 2620 v36 / 122.4 Ghz3.2 Ghz15 mbDDR4-186685 W
Xeon e5 2622 v38 / 162.4 Ghz3.4 Ghz20 mbDDR4-186685 W
Xeon e5 2623 v34 / 83.0 Ghz3.5 Ghz10 mbDDR4-1866105 W
Xeon e5 2628 v38 / 82.5 Ghz3.0 Ghz20 mbDDR4-186685 W
Xeon e5 2628L v310 / 202.0 Ghz2.5 Ghz25 mbDDR4-186675 W
Xeon e5 2629 v38 / 162.4 Ghz-20 mbDDR3-1866
DDR4-1866
85 W
Xeon e5 2630 v38 / 162.4 Ghz3.2 Ghz20 mbDDR4-186685 W
Xeon e5 2630L v38 / 161.8 Ghz2.9 Ghz20 mbDDR4-186655 W
Xeon e5 2637 v34 / 83.5 Ghz3.7 Ghz15 mbDDR4-2133135 W
Xeon E5 2640 v38 / 162.6 Ghz3.4 Ghz20 mbDDR4-213390 W
Xeon e5 2643 v36 / 123.4 Ghz3.7 Ghz20 mbDDR4-2133135 W
Xeon e5 2648L v312 / 241.8 Ghz2.5 Ghz30 mbDDR4-213375 W
Xeon e5 2649 v310 / 202.3 Ghz3.0 Ghz25 mbDDR3-1866
DDR4-2133
105 W
Xeon e5 2650 v310 / 202.3 Ghz3.0 Ghz25 mbDDR4-2133105 W
Xeon e5 2650L v312 / 241.8 Ghz2.5 Ghz30 mbDDR4-213365 W
Xeon e5 2652 v310 / 202.3 Ghz2.8 Ghz25 mbDDR4-2133105 W
Xeon e5 2658 v312 / 242.2Ghz2.9 Ghz30 mbDDR3-2133
DDR4-2133
105 W
Xeon e5 2658A v312 / 242.2 Ghz2.9 Ghz30 mbDDR4-2133105 W
Xeon e5 2660 v310 / 202.6 Ghz3.3 Ghz25 mbDDR4-2133105 W
Xeon e5 2663 v310 / 102.8 Ghz3.5 Ghz25 mbDDR4-2133120 W
Xeon E5 2666 v310 / 202.9 Ghz3.5 Ghz25 mbDDR3-1866
DDR4-2133
135 W
Xeon e5 2667 v38 / 163.2 Ghz3.6 Ghz20 mbDDR4-2133135 W
Xeon e5 2669 v312 / 242.3 Ghz3.1 Ghz30 mbDDR3-1866
DDR4-2133
120 W
Xeon E5 2670 v312 / 242.3 Ghz3.1 Ghz30 mbDDR4-2133120 W
Xeon e5 2673 v312 / 242.4 Ghz3.1 Ghz30 mbDDR3-1866
DDR4-2133
105 W
Xeon e5 2675 v316 / 321.8 Ghz2.3 Ghz40 mbDDR4-2133110 W
Xeon e5 2676 v312 / 242.4 Ghz3.1 Ghz30 mbDDR4-2133120 W
Xeon e5 2678 v312 / 242.5 Ghz3.3 Ghz30 mbDDR3-1866
DDR4-2133
120 W
Xeon e5 2680 v312 / 242.5 Ghz3.3 Ghz30 mbDDR4-2133120 W
Xeon e5 2683 v314 / 282.0 Ghz3.0 Ghz35 mbDDR4-2133120 W
Xeon e5 2685 v312 / 122.6 Ghz3.3 Ghz30 mbDDR4-2133120 W
Xeon e5 2686 v318 / 362.0 Ghz3.5 Ghz45 mbDDR3-1866
DDR4-2133
120 W
Xeon e5 2687W v310 / 203.1 Ghz3.5 Ghz25 mbDDR4-2133160 W
Xeon e5 2690 v312 / 242.6 Ghz3.5 Ghz30 mbDDR4-2133135 W
Xeon e5 2695 v314 / 282.3 Ghz3.3 Ghz35 mbDDR4-2133120 W
Xeon e5 2696 v318 / 362.3 Ghz3.8 Ghz45 mbDDR3-1866
DDR4-2133
145 W
Xeon e5 2697 v314 / 282.6 Ghz3.6 Ghz35 mbDDR4-2133145 W
Xeon e5 2698 v316 / 322.3 Ghz3.6 Ghz40 mbDDR4-2133135 W
Xeon e5 2698A v316 / 322.8 Ghz3.2 Ghz40 mbDDR4-2133165 W
Xeon e5 2698B v316 / 322.0 Ghz3.4 Ghz40 mbDDR4-2133135 W
Xeon e5 2699 v318 / 362.3 Ghz3.6 Ghz45 mbDDR4-2133145 W

Most interesting models:

  • E5‑2666 v3 — 10 cores with adequate frequency; universal budget option
  • E5‑2690 v3 — popular 12‑core with decent clocks
  • E5‑2697 v3 — most interesting 14‑core option
  • E5‑2696/2699 v3 — high frequency and many cores

Xeon E5 2600 v4

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMemory supportTDP
Xeon E5-2603 v46 / 61.7 GHz-15 MBDDR4-186685W
Xeon E5-2608L v48 / 161.6 GHz1.7 GHz20 MBDDR4-186650W
Xeon E5-2609 v48 / 81.7 GHz-20 MBDDR4-186685W
Xeon E5-2618L v410 / 202.2 GHz3.2 GHz25 MBDDR4-213375W
Xeon E5 2620 v48 / 162.1 GHz3 GHz20 MBDDR4-213385W
Xeon E5-2623 v44 / 82.6 GHz3.2 GHz10 MBDDR4-213385W
Xeon E5-2628L v412 / 241.9 GHz2.4 GHz30 MBDDR4-213375W
Xeon E5 2630 v410 / 202.2 GHz3.1 GHz25 MBDDR4-213385W
Xeon E5-2630L v410 / 201.8 GHz2.9 GHz25 MBDDR4-213355W
Xeon E5-2637 v44 / 83.5 GHz3.7 GHz15 MBDDR4-2400135W
Xeon E5 2640 v410 / 202.4 GHz3.4 GHz25 MBDDR4-240090W
Xeon E5 2643 v46 / 123.4 GHz3.7 GHz20 MBDDR4-2400135W
Xeon E5-2648L v414 / 281.8 GHz2.5 GHz35 MBDDR4-240075W
Xeon E5 2650 v412 / 242.2 GHz2.9 GHz30 MBDDR4-2400105W
Xeon E5-2650L v414 / 281.7 GHz2.5 GHz35 MBDDR4-240065W
Xeon E5-2658 v414 / 282.3 GHz2.8 GHz35 MBDDR4-2400105W
Xeon E5 2660 v414 / 282 GHz3.2 GHz35 MBDDR4-2400105W
Xeon E5 2667 v48 / 163.2 GHz3.6 GHz25 MBDDR4-2400135W
Xeon E5 2673 v420 / 402.3 GHz3.5 GHz50 MBDDR4-2400135W
Xeon E5-2679 v420 / 402.5 GHz3.3 GHz50 MBDDR4-2400200W
Xeon E5 2680 v414 / 282.4 GHz3.3 GHz35 MBDDR4-2400120W
Xeon E5-2682 v416 / 322.5 GHz2.9 GHz40 MBDDR4-2400120W
Xeon E5 2683 v416 / 322.1 GHz3 GHz40 MBDDR4-2400120W
Xeon E5 2686 v418 / 362.3 GHz3 GHz45 MBDDR3-1866
DDR4-2400
145W
Xeon E5 2687W v412 / 243 GHz3.5 GHz30 MBDDR4-2400160W
Xeon E5 2689 v410 / 203.1 GHz3.8 GHz25 MBDDR4-2400165W
Xeon E5 2690 v414 / 282.6 GHz3.5 GHz35 MBDDR4-2400135W
Xeon E5 2695 v418 / 362.1 GHz3.3 GHz45 MBDDR4-2400120W
Xeon E5 2696 v422 / 442.2 GHz3.7 GHz55 MBDDR3-1866
DDR4-2400
150W
Xeon E5 2697 v418 / 362.3 GHz3.6 GHz45 MBDDR4-2400145W
Xeon E5 2697A v416 / 322.6 GHz3.6 GHz40 MBDDR4-2400145W
Xeon E5 2698 v420 / 402.2 GHz3.6 GHz50 MBDDR4-2400135W
Xeon E5-2699C v422 / 442.2 GHz2.4 GHz55 MBDDR4-2400145W
Xeon E5 2699 v422 / 442.2 GHz3.6 GHz55 MBDDR4-2400145W
Xeon E5-2699A v422 / 442.4 GHz3.6 GHz55 MBDDR4-2400145W
Xeon E5-2699R v422 / 442.2 GHz3.6 GHz55 MBDDR4-2400145W

Despite DDR3 not being officially supported, several v4 models can operate with both DDR4 and DDR3 in practice.

Most interesting models:

  • E5‑2667 v4 — one of the best gaming choices
  • E5‑2690 v4 — 14 cores with decent clock speed and attractive pricing
  • E5‑2697A v4 — most interesting 16‑core option
  • E5‑2696/2699 v4 — maximum multi‑threaded performance

Xeon E5 4600 v3

Processors in this series are similar to E5‑2600 v3 but support not only single/dual‑socket configurations — they can also run in quad‑socket systems. Generally more expensive and rarer, offering little interest for home use.

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMemory supportTDP
Xeon e5 4610 v310 / 201.7 Ghz-25 MBDDR4-1600105 W
Xeon e5 4620 v310 / 202.0 Ghz2.6 Ghz25 MBDDR4-1866105 W
Xeon e5 4627 v310 / 102.6 Ghz3.2 Ghz25 MBDDR4-1866135 W
Xeon e5 4640 v312 / 241.9 Ghz2.6 Ghz30 MBDDR4-1866105 W
Xeon e5 4648 v312 / 241.7 Ghz2.2 Ghz30 MBDDR4-1866105 W
Xeon e5 4650 v312 / 242.1 Ghz2.8 Ghz30 MBDDR4-2133105 W
Xeon e5 4655 v36 / 122.9 Ghz3.2 Ghz30 MBDDR4-2133135 W
Xeon e5 4660 v314 / 282.1 Ghz2.9 Ghz35 MBDDR4-2133120 W
Xeon e5 4667 v316 / 322.0 Ghz2.9 Ghz40 MBDDR4-2133135 W
Xeon e5 4669 v318 / 362.1 Ghz2.9 Ghz45 MBDDR4-2133135 W

Xeon E5 4600 v4

This series is also designed for multi‑socket configurations but built on Broadwell‑EP.

ModelCores / ThreadsBase FrequencyMax Turbo FrequencyL3 CacheMemory supportTDP
Xeon E5 4610 v410 / 201.8 GHz-25 MBDDR4-1866105 W
Xeon E5 4620 v410 / 202.1 GHz2.6 GHz25 MBDDR4-2133105 W
Xeon E5 4627 v410 / 102.6 GHz3.2 GHz25 MBDDR4-2400135 W
Xeon E5 4628L v414 / 281.8 GHz2.2 GHz35 MBDDR4-213375 W
Xeon E5 4640 v412 / 242.1 GHz2.6 GHz30 MBDDR4-2133105 W
Xeon E5 4650 v414 / 282.2 GHz2.8 GHz35 MBDDR4-2400105 W
Xeon E5 4655 v48 / 162.5 GHz3.2 GHz30 MBDDR4-2400135 W
Xeon E5 4660 v416 / 322.2 GHz3.0 GHz40 MBDDR4-2400120 W
Xeon E5 4667 v418 / 362.2 GHz3.0 GHz45 MBDDR4-2400135 W
Xeon E5 4669 v422 / 442.2 GHz3.0 GHz55 MBDDR4-2400135 W

Processor Recommendations by Use Case

Key recommendation: generally avoid Haswell‑E (v3) processors. While strong for their era — and the turbo mod extends their usefulness — Broadwell‑E (v4) now costs about the same while running cooler and more efficiently. The architectural gains and better efficiency offset the v3 turbo mod and slightly higher base clocks.

Best processors for overclocking:

  • Core i7‑6850K — 6 unlocked Broadwell cores; ideal for motherboards with modest VRM
  • Core i7‑6900K — 8 unlocked Broadwell cores; requires robust power delivery
  • Core i7‑6950X — 10 unlocked Broadwell cores; enthusiast choice needing top‑tier boards

Best locked processors for gaming:

  • E5‑1650 v4 — most budget‑friendly
  • E5‑2667 v4 — best price/performance balance
  • E5‑2689 v4 — more cores but noticeably more expensive

Platform gaming performance with Xeon E5‑2667 v4:

A reasonable GPU ceiling would be RTX 3060, RX 6600, and similarly performing models. When choosing GPUs, remember the platform is limited to PCIe 3.0.

Best locked processors for workstation tasks:

  • E5‑2690 v4 — 14 cores, 35 MB L3, 135 W TDP
  • E5‑2697A v4 — 16 cores, 40 MB L3, 145 W TDP
  • E5‑2697 v4 — 18 cores, 45 MB L3, 145 W TDP
  • E5‑2696/2699 v4 — 22 cores; maximum multi‑threaded performance

Compatibility

Originally, the 2011‑3 platform used two main chipsets — X99 and C612 — both based on the same PCH codenamed Wellsburg. X99 targeted enthusiasts and the HEDT segment with Core i7, while C612 served servers and workstations with Xeon E5. Despite the marketing split, the chipsets are cross‑compatible: desktop CPUs run on server boards, and Xeon E5 works on X99 where BIOS support exists.

Huananzhi X99-P4F motherboard — overview
Huananzhi X99‑P4F — budget “modern” motherboard utilizing the H55 chipset from the LGA1156 era

Later, it was discovered that the platform could operate on other chipsets with limitations — a fact leveraged by Chinese manufacturers to create numerous boards using older‑generation chipsets. Typically, desktop chipsets originally designed for LGA1155 and LGA1150 are used, though rarer options also exist.

Conclusion and Legacy

Socket LGA2011‑3 has had a remarkable journey: starting in 2014, it served as the foundation for powerful servers, workstations, and enthusiast builds. Thanks to support for high core counts, quad‑channel DDR4, and ample expansion, this platform remained relevant in professional environments for years.

Its true “second life” came later — with affordable Xeon E5 processors and Chinese motherboards saturating the market. Today, LGA2011‑3 continues to power budget gaming, workstation, and rendering builds, offering excellent price/performance more than a decade after its debut.

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