Celeron N4020C vs i7-2640M
Aggregate performance score
Core i7-2640M outperforms Celeron N4020C by an impressive 60% based on our aggregate benchmark results.
Primary details
Comparing Core i7-2640M and Celeron N4020C processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2126 | 2499 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Laptop |
| Series | Intel Core i7 | no data |
| Power efficiency | 4.19 | 15.30 |
| Architecture codename | Sandy Bridge (2011−2013) | no data |
| Release date | 4 September 2011 (13 years ago) | 1 January 2021 (3 years ago) |
| Launch price (MSRP) | $346 | no data |
Detailed specifications
Core i7-2640M and Celeron N4020C 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) | 2 (Dual-core) |
| Threads | 4 | 2 |
| Base clock speed | 2.8 GHz | 1.1 GHz |
| Boost clock speed | 3.5 GHz | 2.8 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 28 | no data |
| L1 cache | 128 KB | no data |
| L2 cache | 512 KB | no data |
| L3 cache | 4 MB | 4 MB |
| Chip lithography | 32 nm | 14 nm |
| Die size | 149 mm2 | no data |
| Maximum core temperature | 100 °C | 105 °C |
| Number of transistors | 624 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
Compatibility
Information on Core i7-2640M and Celeron N4020C 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 | 1 (Uniprocessor) | 1 |
| Socket | FCBGA1023,PPGA988 | FCBGA1090 |
| Power consumption (TDP) | 35 Watt | 6 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-2640M and Celeron N4020C. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® AVX | Intel® SSE4.2 |
| AES-NI | + | + |
| FMA | + | - |
| AVX | + | - |
| vPro | + | - |
| Enhanced SpeedStep (EIST) | + | + |
| Speed Shift | no data | - |
| My WiFi | + | no data |
| Turbo Boost Technology | 2.0 | - |
| Hyper-Threading Technology | + | - |
| Idle States | + | + |
| Thermal Monitoring | + | + |
| Flex Memory Access | + | no data |
| Smart Response | no data | - |
| Demand Based Switching | - | no data |
| GPIO | no data | + |
| Turbo Boost Max 3.0 | no data | - |
| FDI | + | no data |
| Fast Memory Access | + | no data |
Security technologies
Core i7-2640M and Celeron N4020C technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | + |
| Secure Key | no data | + |
| MPX | - | + |
| Identity Protection | + | + |
| SGX | no data | Yes with Intel® ME |
| OS Guard | no data | + |
| Anti-Theft | + | - |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-2640M and Celeron N4020C are enumerated here.
| AMD-V | + | - |
| VT-d | + | + |
| VT-x | + | + |
| EPT | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-2640M and Celeron N4020C. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4/LPDDR4 up to 2400 MT/s |
| Maximum memory size | 16 GB | 8 GB |
| Max memory channels | 2 | 2 |
| Maximum memory bandwidth | 228.707 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card Compare | Intel HD Graphics 3000 | Intel UHD Graphics 600 |
| Max video memory | no data | 8 GB |
| Quick Sync Video | + | + |
| Clear Video HD | + | no data |
| Graphics max frequency | 1.3 GHz | 650 MHz |
| Execution Units | no data | 12 |
| InTru 3D | + | no data |
Graphics interfaces
Available interfaces and connections of Core i7-2640M and Celeron N4020C integrated GPUs.
| Number of displays supported | 2 | 3 |
| eDP | + | + |
| DisplayPort | + | + |
| HDMI | + | + |
| MIPI-DSI | no data | + |
| SDVO | + | no data |
| CRT | + | no data |
Graphics image quality
Maximum display resolutions supported by Core i7-2640M and Celeron N4020C integrated GPUs, including resolutions over different interfaces.
| 4K resolution support | no data | + |
| Max resolution over HDMI 1.4 | no data | 4096x2160@30Hz |
| Max resolution over eDP | no data | 4096x2160@60Hz |
| Max resolution over DisplayPort | no data | 4096x2160@60Hz |
Graphics API support
APIs supported by Core i7-2640M and Celeron N4020C integrated GPUs, sometimes API versions are included.
| DirectX | no data | 12 |
| OpenGL | no data | 4.4 |
Peripherals
Specifications and connection of peripherals supported by Core i7-2640M and Celeron N4020C.
| PCIe version | 2.0 | 2.0 |
| PCI Express lanes | 16 | 6 |
| USB revision | no data | 2.0/3.0 |
| Total number of SATA ports | no data | 2 |
| Max number of SATA 6 Gb/s Ports | no data | 2 |
| Number of USB ports | no data | 8 |
| Integrated LAN | no data | - |
| UART | no data | + |
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.
Pros & cons summary
| Performance score | 1.55 | 0.97 |
| Integrated graphics card | 0.66 | 0.87 |
| Recency | 4 September 2011 | 1 January 2021 |
| Threads | 4 | 2 |
| Chip lithography | 32 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 6 Watt |
i7-2640M has a 59.8% higher aggregate performance score, and 100% more threads.
Celeron N4020C, on the other hand, has 31.8% faster integrated GPU, an age advantage of 9 years, a 128.6% more advanced lithography process, and 483.3% lower power consumption.
The Core i7-2640M is our recommended choice as it beats the Celeron N4020C in performance tests.
Should you still have questions on choice between Core i7-2640M and Celeron N4020C, ask them in Comments section, and we shall answer.
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