Core i7-6600U

Details and Benchmarks for Intel Core i7-6600U

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 i7-6600U based on all benchmark results gathered. Look at this like a meta score, you will find more specific workload ratings below.

4,799 Rank: 1022
Rank Name Score Visual
1018 Xeon E3-1290 v2 4,811
+0.3%
1019 Ryzen 3 2300U 4,809
+0.2%
1020 Core i5-3550 4,807
+0.2%
1021 Xeon E5-2670 v2 4,800
+0%
1022 Core i7-6600U 4,799
1023 Celeron G3950 4,799
+0%
1024 Core i7-4712HQ 4,799
+0%
1025 Core i7-7500U 4,798
+-0%
1026 Core i5-3450 4,798
+-0%
1027 Core i7 965 4,796
-0.1%

View full ranking →

Multicore Score

Multicore performance score for Core i7-6600U based on multi-threaded benchmark results.

4,589 Rank: 1104
Rank Name Score Visual
1100 A10-9700 4,592
+0.1%
1101 Phenom II X4 B50 4,591
+0%
1102 Athlon Gold 7220U 4,591
+0%
1103 Intel Core i5-6198DU 4,590
+0%
1104 Core i7-6600U 4,589
1105 Core i3-7100H 4,588
+-0%
1106 Core i5-3330 4,588
+-0%
1107 A10-9700E 4,588
+-0%
1108 Celeron N3010 4,587
+-0%
1109 Core i5-6287U 4,586
-0.1%

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Singlecore Score

Single-core performance score for Core i7-6600U based on single-threaded benchmark results.

4,939 Rank: 976
Rank Name Score Visual
972 Core i7-4860HQ 4,948
+0.2%
973 Core i7-3820QM 4,947
+0.2%
974 Pentium G4560T 4,944
+0.1%
975 Pentium Gold G6400 4,944
+0.1%
976 Core i7-6600U 4,939
977 Core i7-4702HQ 4,939
+0%
978 Core i5-4258U 4,938
+-0%
979 FX-4350 4,937
+-0%
980 Core i7-4760HQ 4,937
+-0%
981 Xeon E5-2620 v4 4,936
-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 i7-6600U based on integer math, floating point math, and prime number computation benchmarks.

4,555 Rank: 1144
Rank Name Score Visual
1140 Core i5-4330M 4,556
+0%
1141 Athlon PRO 200GE 4,555
+0%
1142 Pentium G4600T 4,555
+0%
1143 Pentium G4500 4,555
+0%
1144 Core i7-6600U 4,555
1145 FX-7600P 4,555
+0%
1146 Athlon Gold 3150U 4,555
+0%
1147 A8-6500B 4,555
+0%
1148 Core i7-5557U 4,554
+-0%
1149 Core i7-5600U 4,554
+-0%

View full ranking →

Data Processing

Aggregated score for Core i7-6600U based on data encryption, data compression, and string sorting benchmarks.

4,529 Rank: 1168
Rank Name Score Visual
1164 A8-5600K 4,530
+0%
1165 Phenom II X4 960T 4,530
+0%
1166 Xeon E5440 4,530
+0%
1167 Pentium G4560T 4,529
+0%
1168 Core i7-6600U 4,529
1169 Core i7-5557U 4,529
+0%
1170 Core i5-5287U 4,529
+0%
1171 A12-9730P 4,529
+0%
1172 PRO A10-9700E 4,529
+0%
1173 Phenom II X4 925 4,528
+-0%

View full ranking →

Physics & Compute

Aggregated score for Core i7-6600U based on physics simulation and extended instruction set (SSE/AVX) benchmarks.

4,576 Rank: 1031
Rank Name Score Visual
1027 Core i5-2500S 4,579
+0.1%
1028 Xeon W3530 4,578
+0%
1029 Xeon E5630 4,578
+0%
1030 Core i3-4160 4,577
+0%
1031 Core i7-6600U 4,576
1032 Xeon W3540 4,576
+0%
1033 Core i7-2630QM 4,575
+-0%
1034 Core i3-8130U 4,575
+-0%
1035 Core i3-7167U 4,575
+-0%
1036 Core i7-920 4,575
+-0%

View full ranking →

Core i7-6600U Details

The Intel Core i7-6600U, released in early 2016 as part of the Skylake microarchitecture family, represents a significant step forward in mobile processor efficiency and integrated graphics performance compared to its predecessor, the Haswell-based i7-4650U. While now over seven years old, the i7-6600U was designed for ultra-thin laptops and premium ultrabooks, offering a compelling balance of power and thermal control within a 15 W TDP envelope. Its 14 nm process node and improved power management made it a popular choice for business and productivity-focused systems during its lifecycle, though it has since been overtaken by more modern architectures.

This dual-core processor with four threads leverages Intel's Hyper-Threading technology, allowing it to handle multithreaded workloads efficiently. It features a base clock speed of 2.6 GHz, with a turbo frequency of up to 3.4 GHz when operating on a single core and 3.2 GHz under two-core load. The chip is built on the Skylake U design, featuring 4 MiB of L3 cache, 0.5 MiB of L2 cache, and a total of 0.125 MiB of L1 cache split between instruction and data. The processor supports DDR4-2133, LPDDR3-1866, and DDR3L-1600 memory, with a maximum capacity of 32 GiB and a memory bandwidth of 31.79 GiB/s across two channels.

Integrated into the i7-6600U is the Intel HD Graphics 520 GPU, which includes 24 execution units and a base frequency of 300 MHz, capable of boosting up to 1.05 GHz. This GPU supports up to three display outputs and offers improved video decoding capabilities, including HEVC and VP9, making it suitable for light multimedia tasks and office applications. The processor also supports a range of Intel technologies, including Intel Turbo Boost 2.0, Intel SpeedStep, Intel VT-x, and Intel AES-NI, enhancing performance and security.

In benchmark testing, the i7-6600U achieves an overall Passmark score of 4,799, ranking it #1,022 out of 2,060 processors. Its single-core score of 4,939 places it at #976, indicating strong performance per core, while its multicore score of 4,589 positions it at #1,104. This suggests that the CPU performs well in single-threaded applications but lags behind modern multi-core processors in sustained workload performance. Compared to contemporaries like the Core i5-6198DU, the i7-6600U is only marginally slower, while it falls behind newer mobile chips such as the Core i7-7500U and Ryzen 3 2300U.

As of March 2026, the Core i7-6600U is best suited for light productivity, web browsing, and general office use in legacy systems. While it lacks the raw power of current-generation mobile processors, its efficiency and integrated graphics still make it a viable option for users maintaining older laptops or seeking low-power computing solutions. Its position in the market reflects the evolution of mobile computing, where power efficiency and integrated performance have become as critical as raw clock speeds.
Frequently Compared

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Intel Core i7-6600U

Main Specifications

Designer: Intel
Name: Core i7-6600U
Family: Core
Series: i7-6000
Model Number: i7-6600U
Cores: 2
Threads: 4
Base Frequency: 2600 MHz
Turbo Frequency (1 core): 3400 MHz
Turbo Frequency (2 cores): 3200 MHz
Clock Multiplier: 26x (locked)
Microarchitecture: Skylake
Core Name: Skylake
Core Family: 6
Core Model: 78
Package: FCBGA-1356
Target Segment: Mobile
Max CPUs: 1
TDP: 15 W
Release Price: $393.00

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

Integrated Graphics

GPU: HD Graphics 520
GPU Designer: Intel
GPU Max Frequency: 1050 MHz
Execution Units: 24

Physical Specifications

Process: 14 nm
Die Area: 98.57 mm²
Transistor Count: 1.75 billion
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 TXT vPro VT-x VT-d EPT MPX SGX Secure Key SMEP SIPP IPT TSX Flex Memory MWT ISRT
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