Ryzen 5 PRO 8540U vs Celeron B815
Primary details
Comparing Celeron B815 and Ryzen 5 PRO 8540U processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 694 |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Laptop | Server |
| Series | Intel Celeron | no data |
| Power efficiency | no data | 37.68 |
| Architecture codename | Sandy Bridge (2011−2013) | Hawk Point (2024) |
| Release date | 1 January 2012 (12 years ago) | 16 April 2024 (less than a year ago) |
| Launch price (MSRP) | $86 | no data |
Detailed specifications
Celeron B815 and Ryzen 5 PRO 8540U 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) | 6 (Hexa-Core) |
| Threads | 2 | 12 |
| Base clock speed | 1.6 GHz | 3.2 GHz |
| Boost clock speed | 1.6 GHz | 4.9 GHz |
| Bus type | DMI 2.0 | no data |
| Bus rate | 4 × 5 GT/s | no data |
| Multiplier | 16 | no data |
| L1 cache | 128 KB | 64 KB (per core) |
| L2 cache | 512 KB | 1 MB (per core) |
| L3 cache | 2 MB (shared) | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 131 mm2 | 137 mm2 |
| Maximum core temperature | 100 °C | no data |
| Number of transistors | 504 million | 20,900 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Celeron B815 and Ryzen 5 PRO 8540U 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 | FCPGA988,PGA988 | FP7 |
| Power consumption (TDP) | 35 Watt | 28 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Celeron B815 and Ryzen 5 PRO 8540U. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Intel® SSE4.1, Intel® SSE4.2 | no data |
| AES-NI | - | + |
| FMA | + | - |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| My WiFi | - | no data |
| Turbo Boost Technology | - | no data |
| Hyper-Threading Technology | - | no data |
| Idle States | + | no data |
| Thermal Monitoring | + | - |
| Flex Memory Access | + | no data |
| Demand Based Switching | - | no data |
| FDI | + | no data |
| Fast Memory Access | + | no data |
| Precision Boost 2 | no data | + |
Security technologies
Celeron B815 and Ryzen 5 PRO 8540U technologies aimed at improving security, for example, by protecting against hacks.
| TXT | - | no data |
| EDB | + | no data |
| Anti-Theft | - | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Celeron B815 and Ryzen 5 PRO 8540U 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 B815 and Ryzen 5 PRO 8540U. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR5 |
| Maximum memory size | 16 GB | no data |
| Max memory channels | 2 | no data |
| Maximum memory bandwidth | 21.335 GB/s | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | Intel® HD Graphics for 2nd Generation Intel® Processors | AMD Radeon 740M |
| Graphics max frequency | 1.05 GHz | no data |
Graphics interfaces
Available interfaces and connections of Celeron B815 and Ryzen 5 PRO 8540U integrated GPUs.
| Number of displays supported | 2 | no data |
| eDP | + | no data |
| DisplayPort | + | - |
| HDMI | + | - |
| SDVO | + | no data |
| CRT | + | no data |
Peripherals
Specifications and connection of peripherals supported by Celeron B815 and Ryzen 5 PRO 8540U.
| PCIe version | 2.0 | 4.0 |
| PCI Express lanes | 16 | 14 |
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.
Pros & cons summary
| Recency | 1 January 2012 | 16 April 2024 |
| Physical cores | 2 | 6 |
| Threads | 2 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 35 Watt | 28 Watt |
Ryzen 5 PRO 8540U has an age advantage of 12 years, 200% more physical cores and 500% more threads, a 700% more advanced lithography process, and 25% lower power consumption.
We couldn't decide between Celeron B815 and Ryzen 5 PRO 8540U. We've got no test results to judge.
Be aware that Celeron B815 is a notebook processor while Ryzen 5 PRO 8540U is a server/workstation one.
Should you still have questions on choice between Celeron B815 and Ryzen 5 PRO 8540U, ask them in Comments section, and we shall answer.
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