Ryzen Threadripper 3960X vs Phenom II X3 P820
Aggregate performance score
Ryzen Threadripper 3960X outperforms Phenom II X3 P820 by a whopping 5113% based on our aggregate benchmark results.
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 3079 | 174 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 15.67 |
| Market segment | Laptop | Desktop processor |
| Series | 3x AMD Phenom II | AMD Ryzen Threadripper |
| Power efficiency | 1.01 | 4.72 |
| Designer | AMD | AMD |
| Manufacturer | no data | TSMC |
| Architecture codename | Champlain (2010−2011) | Matisse (2019−2020) |
| Release date | 12 May 2010 (15 years ago) | 25 November 2019 (6 years ago) |
| Launch price (MSRP) | no data | $1,399 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
Phenom II X3 P820 and Ryzen Threadripper 3960X 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 | 3 (Tri-Core) | 24 (Tetracosa-Core) |
| Threads | 3 | 48 |
| Base clock speed | no data | 3.8 GHz |
| Boost clock speed | 1.8 GHz | 4.5 GHz |
| Bus rate | 3600 MHz | 8 × 16 GT/s |
| Multiplier | no data | 38 |
| L1 cache | 384 KB | 96K (per core) |
| L2 cache | 1.5 MB | 512K (per core) |
| L3 cache | no data | 128 MB |
| Chip lithography | 45 nm | 7 nm, 12 nm |
| Number of transistors | no data | 19,200 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Phenom II X3 P820 and Ryzen Threadripper 3960X 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 | no data | 1 (Uniprocessor) |
| Socket | S1 | TR4 |
| Power consumption (TDP) | 25 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Phenom II X3 P820 and Ryzen Threadripper 3960X. You'll probably need this information if you require some particular technology.
| Instruction set extensions | Virtualization, AMD64, Advanced Virus Protection, SSE(1,2,3,4a) | no data |
| AES-NI | - | + |
| AVX | - | + |
| VirusProtect | + | - |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Phenom II X3 P820 and Ryzen Threadripper 3960X are enumerated here.
| AMD-V | + | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Phenom II X3 P820 and Ryzen Threadripper 3960X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | DDR4 Eight-channel |
| Maximum memory size | no data | 256 GB |
| Max memory channels | no data | 4 |
| Maximum memory bandwidth | no data | 102.403 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Performance score | 0.60 | 31.28 |
| Recency | 12 May 2010 | 25 November 2019 |
| Physical cores | 3 | 24 |
| Threads | 3 | 48 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 25 Watt | 280 Watt |
Phenom II X3 P820 has 1020% lower power consumption.
Ryzen Threadripper 3960X, on the other hand, has a 5113.3% higher aggregate performance score, an age advantage of 9 years, 700% more physical cores and 1500% more threads, and a 542.9% more advanced lithography process.
The AMD Ryzen Threadripper 3960X is our recommended choice as it beats the AMD Phenom II X3 P820 in performance tests.
Be aware that Phenom II X3 P820 is a notebook processor while Ryzen Threadripper 3960X is a desktop one.
Other comparisons
We've compiled a selection of CPU comparisons, ranging from closely matched processors to other comparisons that may be of interest.
