Core i7-6660U: specs and benchmarks
Aggregate performance score
Core i7-6660U provides poor benchmark performance at 2.18% of a leader's which is a 128-core EPYC 9755.
Contents
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.
Primary details
Core i7-6660U processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in the ranking | 1999 | |
| Place by popularity | not in top-100 | |
| Cost-effectiveness evaluation | 0.16 | |
| Market segment | Laptop | |
| Series | Intel Core i7 | |
| Power efficiency | 5.81 | of 100.00 (Apple M4 (8 cores)) |
| Designer | Intel | |
| Architecture codename | Skylake (2015−2016) | |
| Release date | 20 March 2016 (9 years ago) | |
| Launch price (MSRP) | $415 | of 17,906 (Xeon Platinum 8280L) |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
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 cores | 2 (Dual-core) | |
| Threads | 4 | |
| Base clock speed | 2.4 GHz | of 4.7 GHz (Ryzen 9 7900X) |
| Boost clock speed | 3.4 GHz | of 6.2 GHz (Core i9-14900KS) |
| Bus type | OPI | |
| Bus rate | 4 GT/s | |
| Multiplier | 24 | of 42 (Core i7-7700K) |
| L1 cache | 128 KB | of 80 KB (EPYC 9965) |
| L2 cache | 512 KB | of 2 MB (Xeon 6980P) |
| L3 cache | 4 MB | of 1152 MB (EPYC 9684X) |
| Chip lithography | 14 nm | of 3 nm (EPYC 9965) |
| Maximum core temperature | 100 °C | of 110 °C (Core Ultra 7 265H) |
| 64 bit support | + | |
| Windows 11 compatibility | - |
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 configuration | 1 (Uniprocessor) | of 8 (Xeon Platinum 8454H) |
| Socket | FCBGA1356 | |
| Power consumption (TDP) | 15 Watt | of 500 Watt (EPYC 9755) |
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 extensions | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 | |
| AES-NI | + | |
| AVX | + | |
| vPro | + | |
| Enhanced SpeedStep (EIST) | + | |
| eDRAM | 64 MB | |
| My WiFi | + | |
| Turbo Boost Technology | 2.0 | |
| Hyper-Threading Technology | + | |
| TSX | + | |
| Idle States | + | |
| Thermal Monitoring | + | |
| Flex Memory Access | + | |
| SIPP | + | |
| Smart Response | + |
Security technologies
Processor technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | |
| EDB | + | |
| MPX | + | |
| Identity Protection | + | |
| SGX | Yes 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 types | DDR4-2133, LPDDR3-1866, DDR3L-1600 | |
| Maximum memory size | 32 GB | of 6 TiB (EPYC 9654) |
| Max memory channels | 2 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 34.134 GB/s | of 460.8 GB/s (EPYC 9654) |
Graphics specifications
General parameters of a GPU integrated into Core i7-6660U.
| Integrated graphics card | Intel Iris Graphics 540 | |
| Max video memory | 32 GB | |
| Quick Sync Video | + | |
| Clear Video | + | |
| Clear Video HD | + | |
| Graphics max frequency | 1.05 GHz | |
| InTru 3D | + |
Graphics interfaces
Available interfaces and connections of Core i7-6660U's integrated GPU.
| Number of displays supported | 3 | |
| 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 1.4 | 4096x2304@24Hz | |
| Max resolution over eDP | 4096x2304@60Hz | |
| Max resolution over DisplayPort | 4096x2304@60Hz |
Graphics API support
APIs supported by Core i7-6660U's integrated GPU, sometimes API versions are included.
| DirectX | 12 | |
| OpenGL | 4.5 |
Peripherals
Specifications and connection types of supported peripherals.
| PCIe version | 3.0 | of 5.0 (EPYC 9755) |
| PCI Express lanes | 12 | of 144 (Threadripper PRO 7955WX) |
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.
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. Other than that, Passmark measures multi-core performance.
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.
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.
Send your test results of Core i7-6660U.
AMD equivalent
According to our data, the closest AMD alternative to Core i7-6660U is Ryzen 3 2200U, which is slower by 1% and lower by 10 positions in our ranking.
Here are some closest AMD rivals to Core i7-6660U:
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 215 configurations using Core i7-6660U in our database.
