Intel Core i7-6660U Benchmark, Test and specs

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CPU lineage

The Intel Core i7-6660U features 2 processor cores and has the capability to manage 4 threads concurrently. It was released in Q1/2016 and belongs to the 6 generation of the Intel Core i7 series. To use the Intel Core i7-6660U, you'll need a motherboard with a BGA 1356 socket.
Name: Intel Core i7-6660U
Family: Intel Core i7
Group: Intel Core i 6000U
Segment: Mobile
Generation: 6

CPU Cores and Base Frequency

The Intel Core i7-6660U has 2 CPU cores and can calculate 4 threads in parallel. The clock frequency of the Intel Core i7-6660U is 2.4 GHz and turbo frequency for one core is 3.4 GHz.
CPU Cores: 2
Threads: 4
Cores: 2x
Core architecture: normal
Hyperthreading: Yes
Overclocking: No
Frequency: 2.4 GHz
Turbo Frequency (1 core): 3.4 GHz

Internal Graphics

The Intel Core i7-6660U has integrated graphics, called iGPU for short. Specifically, the Intel Core i7-6660U uses the Intel Iris Graphics 540, which has 384 texture shaders and 48 execution units. The iGPU uses the system's main memory as graphics memory and sits on the processor's die.
GPU name: Intel Iris Graphics 540
GPU frequency: 0.3 GHz
GPU (Turbo): 1.05 GHz
Execution units: 48
Shaders: 384
Max. GPU Memory: 32.0 GB
Max. displays: --
Generation: 9
Direct X: 12
Technology: 14 nm
Release date: Q3/2015

Hardware codec support

A photo or video codec that is accelerated in hardware can greatly accelerate the working speed of a processor and extend the battery life of notebooks or smartphones when playing videos.
h265 / HEVC (8 bit): Decode / Encode
h265 / HEVC (10 bit): No
h264: Decode / Encode
VP8: Decode / Encode
VP9: No
AV1: No
AVC: Decode / Encode
VC-1: Decode
JPEG: Decode / Encode

Memory & PCIe

The processor supports a maximum memory capacity of 32.0 GB distributed across 2 memory channels. It offers a peak memory bandwidth of 34.1 GB/s. Both the type and quantity of memory can have a substantial impact on the overall system performance.
Memory type: DDR4-2133, LPDDR3-1866
Max. Memory: 32.0 GB
Memory channels: 2
Bandwidth: 34.1 GB/s
ECC: No
PCIe: pci
AES-NI: Yes

Thermal Management

The processor has a thermal design power (TDP) of 15 W watts. TDP indicates the cooling solution needed to effectively manage the processor's heat. It generally provides an approximate indication of the actual power consumption of the CPU itself.
TDP (PL1 / PBP): 15 W
TDP (PL2): None
TDP up: None
TDP down: 9.5 W
Tjunction max: 100 °C

Technical details

The Intel Core i7-6660U is manufactured using a 14 nm process. A smaller manufacturing process indicates a more contemporary and energy-efficient CPU. In total, this processor boasts a generous 4.0 MB cache. A substantial cache can significantly enhance the processor's performance, particularly in scenarios like gaming.
Technology: 14 nm
Chip design: Monolithic
Socket: BGA 1356
L2-Cache: 0 bytes
L3-Cache: 4.0 MB
Architecture: Skylake U
Operating systems: Windows 10, Linux
Virtualization: VT-x, VT-x EPT, VT-d
Instruction set (ISA): x86-64 (64 bit)
ISA extensions: SSE4.1, SSE4.2, AVX2
Release date: Q1/2016
Release price: 415 $
Part Number: --
Documents: Technical data sheet
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Benchmarks

Estimated results for PassMark CPU Mark

AMD Phenom II X4 B95
4C 4T @ 3.0 GHz
3738
3738
Intel Core i7-7560U
2C 4T @ 2.4 GHz
3720
3720
Intel Core i7-6660U
2C 4T @ 2.4 GHz
3720
3720
Intel Core i7-7560U
2C 4T @ 2.4 GHz
3720
3720
AMD A8-3870K
4C 4T @ 3.1 GHz
3684
3684

Geekbench 6 (Multi-Core)

Intel Core i3-4150
2C 4T @ 3.5 GHz
2222
2222
Intel Core i5-6287U
2C 4T @ 3.1 GHz
2214
2214
Intel Core i7-6660U
2C 4T @ 2.4 GHz
2197
2197
Intel Core i3-4330
2C 4T @ 3.5 GHz
2179
2179
Intel Core i3-6100T
2C 4T @ 3.2 GHz
2176
2176

Geekbench 5, 64bit (Multi-Core)

Intel Pentium Gold G6500T
2C 4T @ 3.5 GHz
1935
1935
Intel Core i7-6567U
2C 4T @ 3.3 GHz
1904
1904
Intel Core i7-6660U
2C 4T @ 2.4 GHz
1896
1896
AMD Ryzen Embedded R1505G
2C 4T @ 2.4 GHz
1894
1894
Intel Core i7-7560U
2C 4T @ 2.4 GHz
1888
1888

Geekbench 6 (Single-Core)

Intel Core i7-6600U
2C 4T @ 2.6 GHz
1092
1092
Intel Core i7-6650U
2C 4T @ 2.2 GHz
1092
1092
Intel Core i7-6660U
2C 4T @ 2.4 GHz
1092
1092
AMD Ryzen 3 1200 12nm
4C 4T @ 3.1 GHz
1092
1092
Intel Xeon E5-2687W v3
10C 20T @ 3.1 GHz
1092
1092

Geekbench 5, 64bit (Single-Core)

Intel Core i7-6600U
2C 4T @ 2.6 GHz
820
820
Intel Core i7-6650U
2C 4T @ 2.2 GHz
820
820
Intel Core i7-6660U
2C 4T @ 2.4 GHz
820
820
Intel Core i7-6650U
2C 4T @ 2.2 GHz
820
820
Intel Core i7-6600U
2C 4T @ 2.6 GHz
820
820

iGPU - FP32 Performance (Single-precision GFLOPS)

Intel Core i5-5350H
4C 8T @ 3.1 GHz
806
806
Intel Core i7-5750HQ
4C 8T @ 2.5 GHz
806
806
Intel Core i7-6660U
2C 4T @ 2.4 GHz
806
806
Intel Core i7-6650U
2C 4T @ 2.2 GHz
806
806
Intel Core i5-1030G4
4C 8T @ 0.7 GHz
806
806