Ryzen Threadripper 3990X vs Pentium 4 660
Primary details
Comparing Pentium 4 660 and Ryzen Threadripper 3990X processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 33 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 9.50 |
| Market segment | Desktop processor | Desktop processor |
| Series | Pentium 4 | AMD Ryzen Threadripper |
| Architecture codename | Prescott 2M | Matisse (2019−2020) |
| Release date | no data | 7 February 2020 (4 years ago) |
| Launch price (MSRP) | no data | $3,999 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium 4 660 and Ryzen Threadripper 3990X 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 | 1 (Single-Core) | 64 (Tetrahexaconta-Core) |
| Threads | 1 | 128 |
| Base clock speed | 3.6 GHz | 2.9 GHz |
| Boost clock speed | 3.6 GHz | 4.3 GHz |
| Bus rate | 800 MHz | no data |
| Multiplier | no data | 29 |
| L1 cache | no data | 96K (per core) |
| L2 cache | no data | 512K (per core) |
| L3 cache | 2 MB L2 Cache | 256 MB |
| Chip lithography | 90 nm | 7 nm, 12 nm |
| Die size | no data | 74 mm2 |
| Maximum core temperature | 71 °C | no data |
| Maximum case temperature (TCase) | no data | 95 °C |
| Number of transistors | no data | 3,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
| VID voltage range | 1.2V-1.4V | no data |
Compatibility
Information on Pentium 4 660 and Ryzen Threadripper 3990X 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 |
| Socket | PLGA775,PPGA775 | TR4 |
| Power consumption (TDP) | 115 Watt | 280 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4 660 and Ryzen Threadripper 3990X. 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 |
| Thermal Monitoring | + | - |
| Demand Based Switching | - | no data |
| FSB parity | - | no data |
| Status | Discontinued | no data |
| Precision Boost 2 | no data | + |
Security technologies
Pentium 4 660 and Ryzen Threadripper 3990X 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 Pentium 4 660 and Ryzen Threadripper 3990X are enumerated here.
| AMD-V | - | + |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4 660 and Ryzen Threadripper 3990X. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4-3200 |
| 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 | - | + |
Peripherals
Specifications and connection of peripherals supported by Pentium 4 660 and Ryzen Threadripper 3990X.
| PCIe version | no data | 4.0 |
Pros & cons summary
| Physical cores | 1 | 64 |
| Threads | 1 | 128 |
| Chip lithography | 90 nm | 7 nm |
| Power consumption (TDP) | 115 Watt | 280 Watt |
Pentium 4 660 has 143.5% lower power consumption.
Ryzen Threadripper 3990X, on the other hand, has 6300% more physical cores and 12700% more threads, and a 1185.7% more advanced lithography process.
We couldn't decide between Pentium 4 660 and Ryzen Threadripper 3990X. We've got no test results to judge.
Should you still have questions on choice between Pentium 4 660 and Ryzen Threadripper 3990X, ask them in Comments section, and we shall answer.
Similar processor comparisons
We picked several similar comparisons of processors in the same market segment and performance relatively close to those reviewed on this page.
