Intel Core i7-6660U: specs and benchmarks

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Summary

Intel started Core i7-6660U sales 20 March 2016 at a recommended price of $415. This is a Skylake architecture notebook processor primarily aimed at office systems. It has 2 cores and 4 threads, and is based on 14 nm manufacturing technology, with a maximum frequency of 3400 MHz and a locked multiplier.

Compatibility-wise, this is FCBGA1356 processor with a TDP of 15 Watt. It supports DDR4-2133, LPDDR3-1866, DDR3L-1600 memory.

It provides poor benchmark performance at 2.31% of a leader's which is AMD Ryzen Threadripper PRO 7995WX.

Ryzen Threadripper PRO 7995WXRyzen ThreadripperPRO 7995WX
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General info

Core i7-6660U processor market type (desktop or notebook), architecture, sales start time and pricing.

Place in performance ranking1677
Place by popularitynot in top-100
Market segmentLaptop
SeriesIntel Core i7
Architecture codenameSkylake (2015−2016)
Release date20 March 2016 (8 years old)
Launch price (MSRP)$415of 305 (Core i7-870)
Current price$54 (0.1x MSRP)of 17802 (Threadripper PRO 7995WX)

Technical specs

Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.

Physical cores2 (Dual-core)
Threads4
Base clock speed2.4 GHzof 4.7 (FX-9590)
Boost clock speed3.4 GHzof 6.2 (Core i9-14900KS)
Bus support4 GT/s
L1 cache128 KBof 7475.2 (Apple M2 Pro 10-Core)
L2 cache512 KBof 36864 (Apple M2 Max)
L3 cache4 MBof 768 (EPYC 7373X)
Chip lithography14 nmof 3 (Apple M3 Max 16-Core)
Maximum core temperature100 °Cof 110 (Atom x7-E3950)
64 bit support+
Windows 11 compatibility-
Unlocked multiplierNo

Compatibility

Information on Core i7-6660U compatibility with other computer components and devices: motherboard (look for socket type), power supply unit (look for power consumption) etc. Useful when planning a future computer configuration or upgrading an existing one. Note that power consumption of some processors can well exceed their nominal TDP, even without overclocking. Some can even double their declared thermals given that the motherboard allows to tune the CPU power parameters.

Number of CPUs in a configuration1of 8 (Opteron 842)
SocketFCBGA1356
Power consumption (TDP)15 Wattof 400 (Xeon Platinum 9282)

Technologies and extensions

Technological capabilities and additional instructions supported by Core i7-6660U. You'll probably need this information if you require some particular technology.

Instruction set extensionsIntel® SSE4.1, Intel® SSE4.2, Intel® AVX2
AES-NI+
AVX+
vPro+
Enhanced SpeedStep (EIST)+
eDRAM64 MB
My WiFi+
Turbo Boost Technology2.0
Hyper-Threading Technology+
TSX+
Idle States+
Thermal Monitoring+
Flex Memory Access+
SIPP+
Smart Response+
StatusDiscontinued

Security technologies

Processor technologies aimed at improving security, for example, by protecting against hacks.

TXT+
EDB+
Secure Key+
MPX+
Identity Protection+
SGXYes with Intel® ME
OS Guard+

Virtualization technologies

Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.

VT-d+
VT-x+
EPT+

Memory specs

Types, maximum amount and channel number of RAM supported by Core i7-6660U's memory controller. Depending on the motherboard, higher memory frequency may be supported.

Supported memory typesDDR4-2133, LPDDR3-1866, DDR3L-1600of 5600 (Ryzen 9 7940HS)
Maximum memory size32 GBof 786 (Xeon E5-2670 v3)
Max memory channels2of 12 (Xeon Platinum 9221)
Maximum memory bandwidth34.1 GB/sof 460.8 (EPYC 9124)
ECC memory support-

Graphics specifications

General parameters of a GPU integrated into Core i7-6660U.

Integrated graphics cardIntel Iris Graphics 540
Max video memory32 GB
Quick Sync Video+
Clear Video+
Clear Video HD+
Graphics max frequency1.05 GHz
InTru 3D+

Graphics interfaces

Available interfaces and connections of Core i7-6660U's integrated GPU.

Number of displays supported3
eDP+
DisplayPort+
HDMI+
DVI+

Graphics image quality

Maximum display resolutions supported by Core i7-6660U's integrated GPU, including resolutions over different interfaces.

4K resolution support+
Max resolution over HDMI 1.44096x2304@24Hz
Max resolution over eDP4096x2304@60Hz
Max resolution over DisplayPort4096x2304@60Hz

Graphics API support

APIs supported by Core i7-6660U's integrated GPU, sometimes API versions are included.

DirectX12
OpenGL4.5

Peripherals

Specifications and connection types of supported peripherals.

PCIe version3.0of 5 (Core i9-12900K)
PCI Express lanes12of 128 (EPYC 7551P)

Benchmark performance

Single-core and multi-core benchmark results of Core i7-6660U. Overall benchmark performance is measured in points in 0-100 range, higher is better.


Combined synthetic benchmark score

This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.

i7-6660U 2.31

Passmark

Passmark CPU Mark is a widespread benchmark, consisting of 8 different types of workload, including integer and floating point math, extended instructions, compression, encryption and physics calculation. There is also one separate single-threaded scenario measuring single-core performance.

Benchmark coverage: 68%

i7-6660U 3549

GeekBench 5 Single-Core

GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.

Benchmark coverage: 42%

i7-6660U 1032

GeekBench 5 Multi-Core

GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.

Benchmark coverage: 42%

i7-6660U 2119

Gaming performance

Relative perfomance

Overall Core i7-6660U performance compared to nearest competitors among notebook CPUs.


AMD equivalent

According to our data, the closest AMD alternative to Core i7-6660U is Ryzen 3 2200U, which is faster by 1% and higher by 4 positions in our ranking.

Ryzen 3 2200URyzen 32200U
Compare

Here are some closest AMD rivals to Core i7-6660U:

Intel Core i7-6660U 100
AMD FX-9830P 93.07
AMD FX-7500 90.48

Similar processors

Here is our recommendation of several processors that are more or less close in performance to the one reviewed.

Recommended GPUs

People consider these graphics cards to be good for Core i7-6660U, according to our PC configuration statistics.

These are the fastest graphics cards for Core i7-6660U in our user configuration statistics. There is a total of 247 configurations based on Core i7-6660U in our database.

User ratings: view and submit

Here is the rating given to the reviewed processor by our users. Let others know your opinion by rating it yourself.


4.2 11 votes

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Questions and comments

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