i7-8665U vs Phenom II X2 X640 BE
Aggregate performance score
Core i7-8665U outperforms Phenom II X2 X640 BE by a whopping 293% based on our aggregate benchmark results.
Primary details
Comparing Phenom II X2 X640 BE and Core i7-8665U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2469 | 1445 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | 2x AMD Phenom II | Intel Core i7 |
| Power efficiency | 2.10 | 24.79 |
| Architecture codename | Champlain (2010−2011) | Whiskey Lake-U (2018−2019) |
| Release date | 12 May 2011 (13 years ago) | 1 October 2018 (6 years ago) |
| Launch price (MSRP) | no data | $409 |
Detailed specifications
Phenom II X2 X640 BE 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 | 2 (Dual-core) | 4 (Quad-Core) |
| Threads | 2 | 8 |
| Base clock speed | no data | 1.9 GHz |
| Boost clock speed | 3.2 GHz | 4.8 GHz |
| Bus type | no data | OPI |
| Bus rate | 3600 MHz | 4 GT/s |
| Multiplier | no data | 19 |
| L1 cache | 256 KB | 64 KB (per core) |
| L2 cache | 2 MB | 256 KB (per core) |
| L3 cache | no data | 8 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Maximum core temperature | no data | 100 °C |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
Compatibility
Information on Phenom II X2 X640 BE 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 | no data | 1 (Uniprocessor) |
| Socket | S1 | FCBGA1528 |
| Power consumption (TDP) | 45 Watt | 15 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X2 X640 BE and Core i7-8665U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | MMX, 3DNow!, SSE1-3A, AMD64, Enhanced Virus Protection, Virtualization | Intel® SSE4.1, Intel® SSE4.2, Intel® AVX2 |
| AES-NI | - | + |
| AVX | - | + |
| VirusProtect | + | - |
| Enhanced SpeedStep (EIST) | no data | + |
| 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
Phenom II X2 X640 BE and Core i7-8665U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | no data | + |
| 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 Phenom II X2 X640 BE 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 Phenom II X2 X640 BE and Core i7-8665U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 |
| Maximum memory size | no data | 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 Phenom II X2 X640 BE 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 Phenom II X2 X640 BE 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 Phenom II X2 X640 BE 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 Phenom II X2 X640 BE and Core i7-8665U.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 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.
Cinebench 10 32-bit single-core
Cinebench R10 is an ancient ray tracing benchmark for processors by Maxon, authors of Cinema 4D. Its single core version uses just one CPU thread to render a futuristic looking motorcycle.
Cinebench 10 32-bit multi-core
Cinebench Release 10 Multi Core is a variant of Cinebench R10 using all the processor threads. Possible number of threads is limited by 16 in this version.
3DMark06 CPU
3DMark06 is a discontinued DirectX 9 benchmark suite from Futuremark. Its CPU part contains two scenarios, one dedicated to artificial intelligence pathfinding, another to game physics using PhysX package.
Pros & cons summary
| Performance score | 1.00 | 3.93 |
| Recency | 12 May 2011 | 1 October 2018 |
| Physical cores | 2 | 4 |
| Threads | 2 | 8 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 45 Watt | 15 Watt |
i7-8665U has a 293% higher aggregate performance score, an age advantage of 7 years, 100% more physical cores and 300% more threads, a 221.4% more advanced lithography process, and 200% lower power consumption.
The Core i7-8665U is our recommended choice as it beats the Phenom II X2 X640 BE in performance tests.
Should you still have questions on choice between Phenom II X2 X640 BE and Core i7-8665U, ask them in Comments section, and we shall answer.
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