i7-8665U vs Xeon E5-2686 v4
Aggregate performance score
Xeon E5-2686 v4 outperforms Core i7-8665U by a whopping 224% based on our aggregate benchmark results.
Primary details
Comparing Xeon E5-2686 v4 and Core i7-8665U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 593 | 1427 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Laptop |
| Series | Intel Xeon E5 | Intel Core i7 |
| Power efficiency | 8.34 | 24.86 |
| Architecture codename | Broadwell (2015−2019) | Whiskey Lake-U (2018−2019) |
| Release date | 20 June 2016 (8 years ago) | 16 April 2019 (5 years ago) |
| Launch price (MSRP) | no data | $409 |
Detailed specifications
Xeon E5-2686 v4 and Core i7-8665U basic parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters indirectly say of CPU speed, though for more precise assessment you have to consider their test results.
| Physical cores | 18 (Octadeca-Core) | 4 (Quad-Core) |
| Threads | 36 | 8 |
| Base clock speed | 2.3 GHz | 1.9 GHz |
| Boost clock speed | 3 GHz | 4.8 GHz |
| Bus type | QPI | OPI |
| Bus rate | 2 × 9.6 GT/s | 4 GT/s |
| Multiplier | 23 | 19 |
| L1 cache | no data | 256 KB |
| L2 cache | 4.5 MB | 1 MB |
| L3 cache | 45 MB | 8 MB (shared) |
| Chip lithography | 14 nm | 14 nm |
| Die size | 456.12 mm2 | no data |
| Maximum core temperature | no data | 100 °C |
| Number of transistors | 7200 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Xeon E5-2686 v4 and Core i7-8665U compatibility with other computer components: 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 | 2 (Multiprocessor) | 1 (Uniprocessor) |
| Socket | no data | FCBGA1528 |
| Power consumption (TDP) | 145 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E5-2686 v4 and Core i7-8665U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | no data | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | + | + |
| AVX | + | + |
| vPro | + | no data |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | + |
| My WiFi | no data | + |
| Turbo Boost Technology | no data | 2.0 |
| Hyper-Threading Technology | no data | + |
| TSX | + | + |
| Idle States | no data | + |
| Thermal Monitoring | - | + |
| Flex Memory Access | no data | + |
| SIPP | - | + |
| Smart Response | no data | + |
Security technologies
Xeon E5-2686 v4 and Core i7-8665U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | + |
| EDB | no data | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | - | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E5-2686 v4 and Core i7-8665U are enumerated here.
| AMD-V | - | + |
| VT-d | no data | + |
| VT-x | no data | + |
| EPT | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Xeon E5-2686 v4 and Core i7-8665U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 |
| Maximum memory size | 1,536 GB | 64 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 38.397 GB/s |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | Intel® UHD Graphics for 8th Generation Intel® Processors |
| Max video memory | no data | 32 GB |
| Quick Sync Video | - | + |
| Clear Video | no data | + |
| Clear Video HD | no data | + |
| Graphics max frequency | no data | 1.15 GHz |
Graphics interfaces
Available interfaces and connections of Xeon E5-2686 v4 and Core i7-8665U integrated GPUs.
| Number of displays supported | no data | 3 |
| eDP | no data | + |
| DisplayPort | - | + |
| HDMI | - | + |
| DVI | no data | + |
Graphics image quality
Maximum display resolutions supported by Xeon E5-2686 v4 and Core i7-8665U integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096 x 2304@24Hz |
| Max resolution over eDP | no data | 4096 x 2304@60Hz |
| Max resolution over DisplayPort | no data | 4096 x 2304@60Hz |
Graphics API support
APIs supported by Xeon E5-2686 v4 and Core i7-8665U integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.5 |
Peripherals
Specifications and connection of peripherals supported by Xeon E5-2686 v4 and Core i7-8665U.
| PCIe version | 3.0 | 3.0 |
| PCI Express lanes | 40 | 16 |
Synthetic benchmark performance
Various benchmark results of the processors in comparison. Overall score 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.
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.
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.
Pros & cons summary
| Performance score | 13.26 | 4.09 |
| Recency | 20 June 2016 | 16 April 2019 |
| Physical cores | 18 | 4 |
| Threads | 36 | 8 |
| Power consumption (TDP) | 145 Watt | 15 Watt |
Xeon E5-2686 v4 has a 224.2% higher aggregate performance score, and 350% more physical cores and 350% more threads.
i7-8665U, on the other hand, has an age advantage of 2 years, and 866.7% lower power consumption.
The Xeon E5-2686 v4 is our recommended choice as it beats the Core i7-8665U in performance tests.
Be aware that Xeon E5-2686 v4 is a server/workstation processor while Core i7-8665U is a notebook one.
Should you still have questions on choice between Xeon E5-2686 v4 and Core i7-8665U, ask them in Comments section, and we shall answer.
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