Intel Core i7-6660U

Intel Core i7-6660U
Benchmarks & Specs

Last updated:
The Intel Core i7-6660U processor comes from an earlier generation of mobile chips. It belongs to the Skylake U architecture and was manufactured using the 14 nm process. From the outset, its design was aimed at energy-efficient devices. This enabled very good battery life in laptops and Ultrabooks.

Despite its age, this chip offers a solid foundation for everyday tasks. We still often see it reliably performing its service in systems. A clear plus is the integrated Intel Iris Graphics 540 graphics unit. It is particularly worth emphasizing that it delivered noticeably improved graphics performance at the time.

Thus, light games and multimedia applications were always easily possible. The 4 MB Level 3 cache supports the general system responsiveness. This chip always handles typical multitasking scenarios confidently and efficiently. The Intel Core i7-6660U is still well suited for simple office work. It also offers a solid basis for media consumption.

It represents a balanced solution for its original device class.
  • Energy efficient and good for battery life
  • Integrated Intel Iris Graphics 540
  • Solid performance for everyday tasks and multitasking

Performance Overview
Average performance across multiple benchmarks

Single-core performance
Rank 473 / 834
In segment Notebook
Multi-core performance
Rank 526 / 832
In segment Notebook
Geekbench 6 Single-Core

Geekbench 6 Single-Core
Single-core performance

AMD Athlon Silver 7120U
2C / 2T · 3.50 GHz
1,093
Intel Core m7-6Y75
2C / 4T · 3.10 GHz
1,093
Intel Core i7-6660U
2C / 4T · 3.40 GHz
1,092
Intel Core i7-4810MQ
4C / 8T · 3.80 GHz
1,091
Intel Core i7-4940MX
4C / 8T · 3.90 GHz
1,091
Geekbench 6 Multi-Core

Geekbench 6 Multi-Core
Multi-core performance

Intel Core i5-4340M
2C / 4T · 3.50 GHz
2,227
Intel Core i5-6287U
2C / 4T · 3.30 GHz
2,214
Intel Core i7-6660U
2C / 4T · 2.40 GHz
2,197
Intel Core i7-5557U
2C / 4T · 3.40 GHz
2,187
Intel Core i3-8130U
2C / 4T · 2.80 GHz
2,168
Geekbench 5, 64bit Single-Core

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

AMD Ryzen 5 3450U
4C / 8T · 3.50 GHz
822
Intel Pentium Gold 6500Y
2C / 4T · 3.40 GHz
821
Intel Core i7-6660U
2C / 4T · 3.40 GHz
820
AMD Ryzen 7 3750H
4C / 8T · 4.00 GHz
818
Intel Core i5-4310M
2C / 4T · 3.30 GHz
817
Geekbench 5, 64bit Multi-Core

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

Intel Core i7-7600U
2C / 4T · 3.90 GHz
1,920
Intel Core i7-6567U
2C / 4T · 3.00 GHz
1,904
Intel Core i7-6660U
2C / 4T · 2.40 GHz
1,896
Intel Core i7-7560U
2C / 4T · 3.70 GHz
1,888
Intel Core i7-4600M
2C / 4T · 3.60 GHz
1,887
iGPU - FP32 Performance (Single-precision GFLOPS)

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core i5-1030G4
Intel Iris Plus Graphics G4
806
Intel Core i5-1035G4
Intel Iris Plus Graphics G4
806
Intel Core i7-6660U
Intel Iris Graphics 540
806
Intel Core i5-5257U
Intel Iris Graphics 6100
806
Intel Core i9-12900HX
Intel UHD Graphics 770
794

More benchmarks

At a glance

PropertyValue
FamilyIntel Core i7 (300)
CPU groupIntel Core i 6000U (20)
ArchitectureSkylake U
Technology14 nm
SegmentNotebook
SocketBGA 1356
Generation6
Predecessor
SuccessorIntel Core i7-7660U
Q4/2016

CPU Cores and Base Frequency

PropertyValue
CPU Cores / Threads2 / 4
Hyperthreading / SMT
Core architecturenormal
Cores: 2x
Frequency: 2.40 GHz
Turbo Frequency (1 Core): 3.40 GHz
Turbo Frequency (2 Cores):
L2-Cache
L3-Cache4.00 MB
OverclockingNo

Integrated graphics (iGPU)

PropertyValue
GPU nameIntel Iris Graphics 540
GPU frequency0.30 - 1.05 GHz
CUs / Shader48 / 384
Raytracing
Max. displays3
Max. GPU Memory32 GB
Technology14 nm
Release dateQ3/2015

Memory & PCIe

Memory typeMemory bandwidth
LPDDR3-1866
DDR4-2133
29.9 GB/s
34.1 GB/s
PropertyValue
Max. Memory32 GB
Memory channels2
ECC
PCIe3.0 x 12
PCIe Bandwidth11.8 GB/s

Thermal Management

PropertyValue
TDP15 W
TDP (PL2)
TDP up
TDP down9.5 W
T. junction max.100 °C

Technical details

PropertyValue
Chip designMonolithic
AES-NI
Operating systemsWindows 10, Linux
Instruction setx86-64 (64 bit)
ISA extensionsSSE4.1, SSE4.2, AVX2
Release dateQ1/2016
Release price415 $
DocumentsTechnical data sheet
Intel Core i7-6660U
Intel Core i7-6660U
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