Table of Contents
The Xeon E5‑2697 v3 is a flagship 14‑core processor and one of the most attractive Haswell‑EP CPUs.
Beyond its substantial core count, with TBU applied it can reach relatively high all‑core clocks for the socket. It’s also among the best values on this platform in terms of price‑to‑performance.
Specifications
| Model | Xeon e5 2697 v3 |
|---|---|
| Socket | LGA2011-3 |
| Release Date | Q3 2014 |
| Architecture | Haswell-EP, 22 nm |
| Cores / Threads | 14 / 28 |
| Memory support | DDR4-2133, 4-channel |
| Base Frequency | 2600 MHz |
| Max Turbo Frequency | 3600 MHz (1-2 Cores) 3400 MHz (3 Cores) 3300 MHz (4 Cores) 3200 MHz (5 Cores) 3100 MHz (6+ Cores) |
| Extensions & Features | MMX instructions SSE / Streaming SIMD Extensions SSE2 / Streaming SIMD Extensions 2 SSE3 / Streaming SIMD Extensions 3 SSSE3 / Supplemental Streaming SIMD Extensions 3 SSE4 / SSE4.1 + SSE4.2 / Streaming SIMD Extensions 4 AES / Advanced Encryption Standard instructions AVX / Advanced Vector Extensions AVX2 / Advanced Vector Extensions 2.0 BMI / BMI1 + BMI2 / Bit Manipulation instructions F16C / 16-bit Floating-Point conversion instructions FMA3 / 3-operand Fused Multiply-Add instructions EM64T / Extended Memory 64 technology / Intel 64 HT / Hyper-Threading technology VT-x / Virtualization technology VT-d / Virtualization for directed I/O TBT 2.0 / Turbo Boost technology 2.0 NX / XD / Execute disable bit ? TXT / Trusted Execution technology Enhanced Intel SpeedStep technology |
| L3 Cache | 35 Mb |
| PCIe Lanes | 40, Gen 3.0 |
| TDP | 145 W |
| Maximum operating temperature (Tcase) | 76.7°C |
| Multiplier | Locked |
| Integrated Graphics | None |
| CPUID | 0x306F2 |
| Approximate Price | AliExpress: $15 - $25 (Check Price) |
Key advantages in 2026:
- 14 cores and excellent multithreaded performance
- Relatively high frequency compared to other high‑core‑count CPUs for LGA2011‑3
- Works in both single‑socket and dual‑socket configurations
- Strong price‑to‑performance ratio
Limitations:
- Aging architecture; lower IPC versus modern CPUs
- Memory limited to 2133 MT/s (quad‑channel helps with bandwidth)
- Runs hot; use a tower cooler with at least 4 heatpipes (5–6 preferred)
- High load power; avoid motherboards with weak VRM
Overclocking Capability
Turbo Boost Unlock
Turbo Boost Unlock (TBU) on Xeon E5 v3 forces the CPU to hold its maximum single‑core turbo ratio across all cores. It exploits an unintended Haswell‑EP behavior—a bug, not a planned Intel feature. Applied through methods such as BIOS modification via S3TurboTool, it typically yields 10–30% gains in multithreaded workloads, depending on SKU and cooling. Expect higher sustained power and thermals; use strong cooling and make sure the motherboard VRM can handle the additional load.
TBU is now commonplace in the Haswell‑EP community; without it, performance often falls short in modern tasks, including gaming.
For the E5‑2697 v3, TBU can add roughly 500 MHz all‑core, but it’s not automatic. Even a 145 W TDP is rarely enough to hold the maximum ratio across all cores under heavy all‑core workloads (rendering, stress tests, etc.). The CPU will drop clocks to stay within TDP/EDP limits. Undervolting can partially improve headroom. Most samples are stable at −50 mV; good chips can hold −70 to −100 mV.
With undervolting, in most cases you can expect 3.3–3.4 GHz across all cores under heavy load. Under AVX workloads, subtract roughly another 200 MHz from these values. This behavior is typical for high‑core‑count, locked‑multiplier processors in this lineup, and even so the 2697 v3 remains among the highest‑clocked models in the series.
Base Clock (BCLK) Overclocking
Only select high‑end X99 boards can nudge BCLK, netting roughly +3–5%. It won’t change the overall picture, but it can be combined with TBU.
Performance and Tests
In all tests, the CPU is TB‑unlocked and moderately undervolted.
CPU‑Z
Cinebench R15, R20, R23
Geekbench 6
AIDA64 CPU Queen
7‑Zip
Corona 1.3
Summary
| Xeon E5 2697 v3 (TBU) | |
|---|---|
| CPU-Z (single) | ~400 |
| CPU-Z (multi) | ~6650 |
| Cinebench R15 | ~2300 |
| Cinebench R20 | ~5150 |
| Cinebench R23 | ~13000 |
| GeekBench6 (multi) | ~9200 |
| CPU-Queen | ~117000 |
| 7-Zip | ~91.5 GIPS |
| Corona 1.3 | ~01:25 |
Synthetic and gaming tests, plus a comparison with Ryzen 5 1600/2600/3600/5600:
Gaming Performance
With TBU, the CPU handles games confidently and can even edge out models like the Xeon E5‑2667 v4—often considered the most gaming‑friendly on LGA2011‑3—in some titles. It’s not a match for current‑gen gaming chips, but for the price it’s a solid showing.
- Games up to 2020: 95% run well (60+ FPS), 5% are playable (40–60 FPS)
- Games 2020–2025: 80% run well (60+ FPS), 10% are playable (40–60 FPS), 10% are unplayable (low FPS, stutter, micro‑stutter)
Best‑matched GPUs for 1080p and 1440p: NVIDIA 1070 (Ti), 1660 (Super/Ti), 1080 (Ti), 2060 (Super), 3060 (Ti); AMD RX 580, RX 5600 XT, RX 5700 XT, RX 6600 (XT/6650 XT), RX 6700 XT, RX 7600 (XT).
Gaming performance paired with an RTX 4080 Super and a comparison with the E5‑2667 v4:
Gaming performance comparison with other popular high‑core‑count CPUs for this socket:
Close Alternatives
V3 series (TBU possible, but hotter and less power‑efficient; Haswell‑EP):
- Xeon E5-2698 v3 (16/32, up to 3.6 GHz, 40 MB L3)
- Xeon E5-2696 v3 / E5-2699 v3 (18/36, up to 3.8 GHz, 45 MB L3)
V4 series (TBU not possible, cooler and more power‑efficient; Broadwell‑EP):
- Xeon E5-2690 v4 (14/28, up to 3.5 GHz, 35 MB L3)
- Xeon E5-2697A v4 (16/32, up to 3.6 GHz, 40 MB L3)
- Xeon E5-2697 v4 (18/36, up to 3.6 GHz, 45 MB L3)
The full list of processors for LGA2011‑3 can be found here.
Revisions
Besides the final version, there are also engineering versions of the E5 2697 v3. They can be distinguished by the s-spec code, which is engraved on the processor lid. The final version has the code SR1XF. The revision can also be determined by the HWiNFO utility.
| S-spec Code | Stepping | Version |
| QFQF | C0 | ES\QS |
| QGEF | C0 | ES\QS |
| QGN3 | C1 | QS |
| SR1XF | C1 | Final |
Frequently Asked Questions
Is undervolting possible?
Yes, voltage control is possible on v3 processors. Some ES models may be exceptions.
Is there solder or thermal paste under the lid?
There is solder under the lid (IHS), as with the entire Xeon E5 v3/v4 lineup.
Is the processor compatible with Windows 11?
No, the Xeon E5‑2697 v3 is not officially supported by Windows 11, but it works fine if you bypass the CPU/TPM checks during installation.
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