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Intel Xeon E5-1660 v3
Benchmarks & Specs

Name: Intel Xeon E5-1660 v3
Brand: Intel
Rating: 4.7 (18 reviews)

Last updated: 2026-04-07

Table of Contents

Summary
Benchmarks
Specifications
User Reviews
Popular Comparisons

Summary

The Intel Xeon E5-1660 v3 is a processor based on the Haswell E architecture. It was manufactured using the 22 nm process. At the time of its introduction, it offered considerable computing power. This CPU has 8 cores and 16 threads, making it still a good choice for parallelizable tasks. Particularly noteworthy is the generous Level 3 cache of 20 MB, which contributes significantly to fast data availability.

A maximum memory bandwidth of 68 GB/s supports memory-intensive applications. We often see this processor in workstations and servers, where it reliably delivers its performance. Its design for professional environments underscores its high reliability. The Intel Xeon E5-1660 v3 is still a solid option for many specialized applications today, providing a stable base for systems that don't need the very latest.

A proven processor for demanding tasks.

8 Cores and 16 Threads
20 MB Level 3 Cache
68 GB/s Maximum Memory Bandwidth
High Reliability

Benchmarks

Performance Overview
Average performance across multiple benchmarks

Single-core performance

Rank 356 / 867
In segment Desktop

Multi-core performance

Rank 232 / 821
In segment Desktop

Geekbench 6 Single-Core
Single-core performance

18C / 36T · 4.50 GHz

1,459

4C / 8T · 4.20 GHz

1,453

8C / 16T · 3.50 GHz

1,448

8C / 16T · 4.40 GHz

1,447

4C / 8T · 4.30 GHz

1,446

Geekbench 6 Multi-Core
Multi-core performance

8C / 16T · 4.20 GHz

8,814

16C / 32T · 3.50 GHz

8,814

8C / 16T · 3.20 GHz

8,769

10C / 20T · 4.50 GHz

8,727

4C / 8T · 3.50 GHz

8,720

Geekbench 5, 64bit Single-Core
Single-core performance

8C / 16T · 3.85 GHz

1,091

4C / 8T · 3.90 GHz

1,089

8C / 16T · 3.50 GHz

1,088

24C / 48T · 3.90 GHz

1,087

18C / 36T · 3.90 GHz

1,087

Geekbench 5, 64bit Multi-Core
Multi-core performance

6C / 12T · 4.20 GHz

8,686

8C / 16T · 3.20 GHz

8,633

8C / 16T · 3.20 GHz

8,622

10C / 20T · 3.30 GHz

8,596

12C / 24T · 2.60 GHz

8,568

CPU-Z Benchmark 17 Multi-Core
Multi-core performance

6C / 12T · 2.80 GHz

4,383

10C / 20T · 2.90 GHz

4,332

8C / 16T · 3.00 GHz

4,301

12C / 24T · 2.30 GHz

4,281

6C / 12T · 2.70 GHz

4,275

Cinebench R15 (Single-Core)
Single-core performance

4C / 8T · 3.90 GHz

179 cb

6C / 6T · 4.20 GHz

178 cb

8C / 16T · 3.50 GHz

177 cb

4C / 8T · 3.90 GHz

176 cb

2C / 4T · 4.10 GHz

176 cb

Cinebench R15 (Multi-Core)
Multi-core performance

10C / 20T · 2.60 GHz

1,374 cb

8C / 16T · 3.20 GHz

1,364 cb

8C / 16T · 3.20 GHz

1,360 cb

6C / 12T · 4.00 GHz

1,341 cb

6C / 12T · 4.00 GHz

1,341 cb

More benchmarks

Geekbench 6 (SC)
1,989 entries

Geekbench 6 (MC)
1,927 entries

Geekbench 5 (SC)
2,512 entries

Geekbench 5 (MC)
2,483 entries

PassMark CPU-Mark
2,504 entries

CPU-Z Benchmark 17 (MC)
751 entries

Cinebench R15 (SC)
1,113 entries

Cinebench R15 (MC)
1,110 entries

Geekbench 3 (SC)
945 entries

Geekbench 3 (MC)
941 entries

Cinebench R11.5 (SC)
826 entries

Cinebench R11.5 (MC)
837 entries

Specifications

At a glance

Property	Value
Family	Intel Xeon E5 (76)
CPU group	Intel Xeon E5 v3 (34)
Architecture	Haswell E
Technology	22 nm
Segment	Desktop
Socket	LGA 2011-3
Generation	5
Predecessor	Intel Xeon E5-1660 v2 Q3/2013
Successor	Intel Xeon E5-1660 v4 Q2/2016

CPU Cores and Base Frequency

Property	Value
CPU Cores / Threads	8 / 16
Hyperthreading / SMT	✓
Core architecture	normal
Cores:	8x
Frequency:	3.00 GHz
Turbo Frequency (1 Core):	3.50 GHz
Turbo Frequency (8 Cores):	3.20 GHz
L2-Cache
L3-Cache	20.00 MB
Overclocking	No

Integrated graphics (iGPU)

Property	Value
GPU name	no iGPU
GPU frequency
CUs / Shader	/
Raytracing	✗
Max. displays
Max. GPU Memory
Technology
Release date

NPU AI performance

Property	Value
AI hardware
AI specifications
NPU + CPU + iGPU

Memory & PCIe

Memory type	Memory bandwidth
DDR4-2133	68.2 GB/s
Property	Value
Max. Memory	768 GB
Memory channels	4
ECC	✓
PCIe	3.0 x 40
PCIe Bandwidth	39.4 GB/s

Thermal Management

Property	Value
TDP	140 W
TDP (PL2)
TDP up
TDP down
T. junction max.

Technical details

Property	Value
Chip design	Monolithic
AES-NI	✓
Operating systems	Windows 10, Linux
Instruction set	x86-64 (64 bit)
ISA extensions	SSE4.1, SSE4.2, AVX2
Release date	Q3/2014
Release price
Documents	Technical data sheet

User Reviews

Your rating

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★★★★★