Pentium D 820 vs Ryzen Threadripper PRO 5995WX
Primary details
Comparing Ryzen Threadripper PRO 5995WX and Pentium D 820 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 19 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Server | Desktop processor |
| Series | AMD Ryzen Threadripper | Pentium D |
| Power efficiency | 19.83 | no data |
| Architecture codename | Chagall PRO (2022) | Smithfield (2005) |
| Release date | 8 March 2022 (2 years ago) | May 2005 (19 years ago) |
Detailed specifications
Ryzen Threadripper PRO 5995WX and Pentium D 820 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 | 64 (Tetrahexaconta-Core) | 2 (Dual-core) |
| Threads | 128 | 2 |
| Base clock speed | 2.7 GHz | 2.8 GHz |
| Boost clock speed | 4.5 GHz | 2.8 GHz |
| Bus rate | no data | 800 MHz |
| Multiplier | 27 | no data |
| L1 cache | 64K (per core) | 28 KB |
| L2 cache | 512K (per core) | 2 MB |
| L3 cache | 256 MB | 0 KB |
| Chip lithography | 7 nm | 90 nm |
| Die size | 8x 81 mm2 | 206 mm2 |
| Maximum core temperature | no data | 64 °C |
| Maximum case temperature (TCase) | 95 °C | no data |
| Number of transistors | 33,200 million | 169 million |
| 64 bit support | + | + |
| Windows 11 compatibility | + | - |
| VID voltage range | no data | 1.2V-1.4V |
Compatibility
Information on Ryzen Threadripper PRO 5995WX and Pentium D 820 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 |
| Socket | WRX8 | PLGA775 |
| Power consumption (TDP) | 280 Watt | 95 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Ryzen Threadripper PRO 5995WX and Pentium D 820. 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 | + |
| Demand Based Switching | no data | - |
| PAE | no data | 32 Bit |
| FSB parity | no data | - |
Security technologies
Ryzen Threadripper PRO 5995WX and Pentium D 820 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 Ryzen Threadripper PRO 5995WX and Pentium D 820 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 Ryzen Threadripper PRO 5995WX and Pentium D 820. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4-3200 | DDR1, DDR2, DDR3 |
| Maximum memory size | 2 TiB | no data |
| Maximum memory bandwidth | 204.8 GB/s | no data |
Peripherals
Specifications and connection of peripherals supported by Ryzen Threadripper PRO 5995WX and Pentium D 820.
| PCIe version | 4.0 | no data |
| PCI Express lanes | 128 | 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.
Pros & cons summary
| Physical cores | 64 | 2 |
| Threads | 128 | 2 |
| Chip lithography | 7 nm | 90 nm |
| Power consumption (TDP) | 280 Watt | 95 Watt |
Ryzen Threadripper PRO 5995WX has 3100% more physical cores and 6300% more threads, and a 1185.7% more advanced lithography process.
Pentium D 820, on the other hand, has 194.7% lower power consumption.
We couldn't decide between Ryzen Threadripper PRO 5995WX and Pentium D 820. We've got no test results to judge.
Be aware that Ryzen Threadripper PRO 5995WX is a server/workstation processor while Pentium D 820 is a desktop one.
Should you still have questions on choice between Ryzen Threadripper PRO 5995WX and Pentium D 820, ask them in Comments section, and we shall answer.
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