EPYC 7742 vs Celeron N2840
Primary details
Comparing Celeron N2840 and EPYC 7742 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 46 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 3.35 |
| Market segment | Laptop | Server |
| Series | Intel Celeron | AMD EPYC |
| Power efficiency | no data | 18.45 |
| Architecture codename | Bay Trail-M (2013−2014) | Zen 2 (2017−2020) |
| Release date | 22 May 2014 (10 years ago) | 7 August 2019 (5 years ago) |
| Launch price (MSRP) | no data | $6,950 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Celeron N2840 and EPYC 7742 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) | 64 (Tetrahexaconta-Core) |
| Threads | 2 | 128 |
| Base clock speed | 2.16 GHz | 2.25 GHz |
| Boost clock speed | 2.58 GHz | 3.4 GHz |
| Multiplier | no data | 22.5 |
| L1 cache | 56K (per core) | 96K (per core) |
| L2 cache | 512K (per core) | 512K (per core) |
| L3 cache | 0 KB | 256 MB (shared) |
| Chip lithography | 22 nm | 7 nm, 14 nm |
| Die size | no data | 192 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Celeron N2840 and EPYC 7742 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 | 2 (Multiprocessor) |
| Socket | FCBGA1170 | TR4 |
| Power consumption (TDP) | 7.5 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron N2840 and EPYC 7742. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Smart Connect | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Celeron N2840 and EPYC 7742 technologies aimed at improving security, for example, by protecting against hacks.
| EDB | + | no data |
| Secure Key | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron N2840 and EPYC 7742 are enumerated here.
| AMD-V | - | + |
| VT-d | - | no data |
| VT-x | + | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Celeron N2840 and EPYC 7742. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Eight-channel |
| Maximum memory size | 8 GB | 4 TiB |
| Max memory channels | 2 | 8 |
| Maximum memory bandwidth | 21.32 GB/s | 204.763 GB/s |
| ECC memory support | - | + |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for Intel Atom® Processor Z3700 Series | no data |
| Quick Sync Video | + | - |
| Graphics max frequency | 792 MHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron N2840 and EPYC 7742 integrated GPUs.
| Number of displays supported | 2 | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron N2840 and EPYC 7742.
| PCIe version | 2.0 | no data |
| PCI Express lanes | 4 | no data |
| USB revision | 3.0 and 2.0 | no data |
| Total number of SATA ports | 2 | no data |
| Number of USB ports | 5 | 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.
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
| Recency | 22 May 2014 | 7 August 2019 |
| Physical cores | 2 | 64 |
| Threads | 2 | 128 |
| Chip lithography | 22 nm | 7 nm |
| Power consumption (TDP) | 7 Watt | 225 Watt |
Celeron N2840 has 3114.3% lower power consumption.
EPYC 7742, on the other hand, has an age advantage of 5 years, 3100% more physical cores and 6300% more threads, and a 214.3% more advanced lithography process.
We couldn't decide between Celeron N2840 and EPYC 7742. We've got no test results to judge.
Be aware that Celeron N2840 is a notebook processor while EPYC 7742 is a server/workstation one.
Should you still have questions on choice between Celeron N2840 and EPYC 7742, ask them in Comments section, and we shall answer.
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