Ryzen 5 PRO 8645HS vs Xeon E7-2820
Primary details
Comparing Xeon E7-2820 and Ryzen 5 PRO 8645HS processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Server |
| Series | Intel Xeon E7 | no data |
| Architecture codename | Westmere (2010−2011) | Hawk Point (2024) |
| Release date | 5 April 2011 (13 years ago) | 16 April 2024 (less than a year ago) |
| Launch price (MSRP) | $1,334 | no data |
Detailed specifications
Xeon E7-2820 and Ryzen 5 PRO 8645HS 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 | 8 (Octa-Core) | 6 (Hexa-Core) |
| Threads | 16 | 12 |
| Base clock speed | 2 GHz | 4.3 GHz |
| Boost clock speed | 2.27 GHz | 5 GHz |
| Bus type | QPI | no data |
| Bus rate | 5.86 GT/s | no data |
| Multiplier | 15 | no data |
| L1 cache | 512 KB | 64 KB (per core) |
| L2 cache | 2 MB | 1 MB (per core) |
| L3 cache | 18 MB | 16 MB (shared) |
| Chip lithography | 32 nm | 4 nm |
| Die size | 513 mm2 | 178 mm2 |
| Maximum core temperature | 64 °C | no data |
| Number of transistors | 2600 Million | 25,000 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Xeon E7-2820 and Ryzen 5 PRO 8645HS 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 |
| Socket | LGA1567 | FP7 |
| Power consumption (TDP) | 105 Watt | 45 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Xeon E7-2820 and Ryzen 5 PRO 8645HS. 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 | + | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Turbo Boost Technology | 1.0 | no data |
| Hyper-Threading Technology | + | no data |
| Thermal Monitoring | + | - |
| Precision Boost 2 | no data | + |
Security technologies
Xeon E7-2820 and Ryzen 5 PRO 8645HS technologies aimed at improving security, for example, by protecting against hacks.
| TXT | + | no data |
| EDB | + | no data |
Virtualization technologies
Virtual machine speed-up technologies supported by Xeon E7-2820 and Ryzen 5 PRO 8645HS 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 E7-2820 and Ryzen 5 PRO 8645HS. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3-800, DDR3-978, DDR3-1066, DDR3-1333, Speed-1066 | DDR5 |
| Maximum memory size | 1 TB | no data |
| Max memory channels | 4 | no data |
| Maximum memory bandwidth | 34.113 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | AMD Radeon 760M |
Peripherals
Specifications and connection of peripherals supported by Xeon E7-2820 and Ryzen 5 PRO 8645HS.
| PCIe version | no data | 4.0 |
| PCI Express lanes | no data | 20 |
Pros & cons summary
| Recency | 5 April 2011 | 16 April 2024 |
| Physical cores | 8 | 6 |
| Threads | 16 | 12 |
| Chip lithography | 32 nm | 4 nm |
| Power consumption (TDP) | 105 Watt | 45 Watt |
Xeon E7-2820 has 33.3% more physical cores and 33.3% more threads.
Ryzen 5 PRO 8645HS, on the other hand, has an age advantage of 13 years, a 700% more advanced lithography process, and 133.3% lower power consumption.
We couldn't decide between Xeon E7-2820 and Ryzen 5 PRO 8645HS. We've got no test results to judge.
Should you still have questions on choice between Xeon E7-2820 and Ryzen 5 PRO 8645HS, ask them in Comments section, and we shall answer.
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