Core i7-7660U

Details and Benchmarks for Intel Core i7-7660U

Sysbuilds Alpha Stage!

Please take all results with a big grain of salt. Sysbuilds is in alpha stage at the moment which can lead to wrong data, strange counting errors, silly results and more. This site is under active development.

Benchmark Results

Combined benchmark scores based on multiple data points, giving a quick overview of this processor's performance.

Overall Score

Overall score for Core i7-7660U based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

5,115 Rank: 778
Rank Name Score Visual
774 Core i3-6100 5,124
+0.2%
775 Ryzen 5 2400G 5,123
+0.2%
776 Xeon E3-1230 V2 5,122
+0.1%
777 EPYC 7251 5,119
+0.1%
778 Core i7-7660U 5,115
779 Core i3-8109U 5,114
+-0%
780 Core i7-5700HQ 5,114
+-0%
781 Core i5-10310U 5,114
+-0%
782 Xeon E3-1225 v5 5,113
+-0%
783 Core i3-4360 5,113
+-0%

View full ranking →

Multicore Score

Multicore performance score for Core i7-7660U based on multi-threaded benchmark results.

4,580 Rank: 1116
Rank Name Score Visual
1112 Xeon Bronze 3106 4,584
+0.1%
1113 Core i3-8109U 4,582
+0%
1114 Core i7-6560U 4,582
+0%
1115 Core i5-3340 4,581
+0%
1116 Core i7-7660U 4,580
1117 Core i5-7267U 4,580
+0%
1118 Pentium 6805 4,580
+0%
1119 Pentium G4520 4,578
+-0%
1120 Core i7-7600U 4,578
+-0%
1121 Core i5-2320 4,578
+-0%

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Singlecore Score

Single-core performance score for Core i7-7660U based on single-threaded benchmark results.

5,471 Rank: 575
Rank Name Score Visual
571 Core i7-9850H 5,473
+0%
572 Core i5-9400 5,473
+0%
573 Core i5-4690 5,473
+0%
574 Xeon E3-1220 v5 5,472
+0%
575 Core i7-7660U 5,471
576 Core i7-5960X 5,470
+-0%
577 Core i3-8109U 5,469
+-0%
578 Core i5-1135G7 5,469
+-0%
579 Core i5-7260U 5,468
-0.1%
580 EPYC 7F72 5,467
-0.1%

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Workload Scores

Performance scores grouped by workload type, normalized and aggregated from multiple raw benchmark results.

Number Crunching

Aggregated score for Core i7-7660U based on integer math, floating point math, and prime number computation benchmarks.

4,579 Rank: 1032
Rank Name Score Visual
1028 A8-6600K 4,580
+0%
1029 A10-5800K 4,580
+0%
1030 Xeon E5520 4,580
+0%
1031 A10 PRO-7800B 4,580
+0%
1032 Core i7-7660U 4,579
1033 Core i7-7560U 4,579
+0%
1034 Atom C3958 4,579
+0%
1035 A12-9800E 4,579
+0%
1036 A8-7600 4,579
+0%
1037 A10-7800 4,579
+0%

View full ranking →

Data Processing

Aggregated score for Core i7-7660U based on data encryption, data compression, and string sorting benchmarks.

4,552 Rank: 1048
Rank Name Score Visual
1044 Xeon E5530 4,553
+0%
1045 Core i5-3335S 4,553
+0%
1046 Athlon X4 950 4,553
+0%
1047 Core i3-8109U 4,552
+0%
1048 Core i7-7660U 4,552
1049 Core i3-7101TE 4,552
+0%
1050 A10-9700 4,552
+0%
1051 A10-7870K 4,552
+0%
1052 Xeon X5470 4,552
+0%
1053 Core i3-8121U 4,552
+0%

View full ranking →

Physics & Compute

Aggregated score for Core i7-7660U based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,625 Rank: 896
Rank Name Score Visual
892 Core i5-7260U 4,627
+0%
893 Xeon E3-1240 4,627
+0%
894 Core i5-3570 4,626
+0%
895 Xeon X5660 4,626
+0%
896 Core i7-7660U 4,625
897 Core i5-7360U 4,625
+0%
898 Core i5-7287U 4,625
+0%
899 Core i7-2600 4,625
+0%
900 Core i7-3635QM 4,625
+0%
901 Xeon E3-1265L v2 4,625
+0%

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Core i7-7660U Details

As of March 2026, the Intel Core i7-7660U remains a notable entry in the mobile processor lineup, particularly for users seeking a balance between performance and power efficiency in ultrabooks and thin-and-light laptops. Built on Intel's Kaby Lake microarchitecture and fabricated on a 14 nm process, this dual-core, quad-thread processor was released in 2017, placing it among older but still relevant mobile CPUs. Despite its age, it retains relevance in budget and mid-tier systems where integrated graphics and low power consumption are priorities.

The Core i7-7660U operates at a base frequency of 2.5 GHz and can boost up to 4.0 GHz, leveraging Intel's Turbo Boost Technology 2.0. It features 4 MiB of L3 cache and 0.5 MiB of L2 cache, with 0.125 MiB of L1 cache, supporting fast access to frequently used data. The processor supports up to 32 GiB of DDR4-2133 or DDR3L-1600 memory across two channels, with a maximum memory bandwidth of 31.79 GiB/s. Its TDP is 15 W, with a configurable down to 9.5 W, making it well-suited for fanless or low-noise designs.

One of the standout features of this CPU is its integrated Iris Plus Graphics 640, which includes 48 execution units and can reach a maximum frequency of 1.1 GHz. This GPU supports up to three displays and is capable of handling light gaming, video editing, and multimedia tasks. The processor also supports a wide range of technologies, including AES-NI, AVX2, Intel vPro, Hyper-Threading, and Intel Speed Shift, enhancing security, virtualization, and responsiveness.

In benchmark testing, the Core i7-7660U achieves an overall score of 5,115, ranking #778 of 2,060 processors, with a single-core score of 5,471 (#575) and a multicore score of 4,580 (#1,116). These results place it above many older-generation mobile CPUs like the Core i7-5700HQ and Xeon X5550, but below modern processors such as the Core i5-9400 and Ryzen 5 2400G. Its single-core performance is particularly strong relative to its age, though its multicore capabilities are now limited compared to current standards.

While the Core i7-7660U is no longer competitive in high-performance computing or content creation, it remains a solid option for general productivity, web browsing, and light multimedia use. Its low power consumption and integrated graphics make it ideal for business laptops and everyday users who prioritize battery life and quiet operation over raw performance.
Frequently Compared

AMD Ryzen 9 PRO 3900 2 views

AMD EPYC 7371 2 views

AMD Ryzen 3 PRO 2200GE 1 view

AMD Ryzen 5 PRO 3500U 1 view

Intel Xeon Silver 4214 1 view

Intel Xeon Silver 4116T 1 view

Intel Xeon Silver 4116 1 view

Intel Xeon Silver 4109T 1 view

Intel Core i7-6498DU 1 view

Intel Core i7-2710QE 1 view

Intel Core i7-7660U

Main Specifications

Designer: Intel
Name: Core i7-7660U
Family: Core
Series: i7-7600
Model Number: i7-7660U
Cores: 2
Threads: 4
Base Frequency: 2500 MHz
Turbo Frequency (1 core): 4000 MHz
Clock Multiplier: 25x (locked)
Microarchitecture: Kaby Lake
Core Name: Kaby Lake U
Core Family: 6
Core Model: 142
Package: FCBGA-1356
Target Segment: Mobile
Max CPUs: 1
TDP: 15 W
Release Price: $415.00

Cache Specifications

L1 Cache: 128 KiB
L1 Instruction Cache: 64 KiB (8-way set associative)
L1 Data Cache: 64 KiB (8-way set associative)
L2 Cache: 0.5 MiB (4-way set associative)
L3 Cache: 4 MiB (16-way set associative)

Memory Specifications

Supported Memory Type: LPDDR3-1866 DDR3L-1600 and DDR4-2133
Memory Channels: 2
Maximum Memory: 32 GB
Maximum Bandwidth: 31.79 GB/s
ECC Support: No

Integrated Graphics

GPU: Iris Plus Graphics 640
GPU Designer: Intel
GPU Max Frequency: 1100 MHz
Execution Units: 48

Physical Specifications

Process: 14 nm
Manufacturer: Intel
Technology: CMOS
Word Size: 64-bit
ISA: x86-64 (x86)

CPU Features

MMX EMMX SSE SSE2 SSE3 SSSE3 SSE4.1 SSE4.2 AVX AVX2 ABM BMI1 BMI2 FMA3 AES RdRand ADX CLMUL F16C x86-16 x86-32 x86-64 Real Protected SMM FPU NX HT TBT 2.0 EIST SST TXT vPro VT-x VT-d EPT MPX SGX Secure Key SMEP SIPP IPT TSX Flex Memory MWT ISRT SBA
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