EPYC 7642 vs Pentium 4 1.9
Primary details
Comparing Pentium 4 1.9 and EPYC 7642 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 91 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 5.55 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD EPYC |
| Power efficiency | no data | 15.57 |
| Architecture codename | Willamette (2000−2001) | Zen 2 (2017−2020) |
| Release date | August 2001 (23 years ago) | 7 August 2019 (5 years ago) |
| Launch price (MSRP) | no data | $4,775 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Pentium 4 1.9 and EPYC 7642 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) | 48 (Octatetraconta-Core) |
| Threads | 1 | 96 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 1.9 GHz | 3.4 GHz |
| Multiplier | no data | 23 |
| L1 cache | 8 KB | 96K (per core) |
| L2 cache | 256 KB | 512K (per core) |
| L3 cache | 0 KB | 256 MB (shared) |
| Chip lithography | 180 nm | 7 nm, 14 nm |
| Die size | 217 mm2 | 192 mm2 |
| Maximum case temperature (TCase) | 73 °C | no data |
| Number of transistors | 42 million | 4,800 million |
| 64 bit support | - | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Pentium 4 1.9 and EPYC 7642 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 (Multiprocessor) |
| Socket | 423 | TR4 |
| Power consumption (TDP) | 69 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Pentium 4 1.9 and EPYC 7642. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Pentium 4 1.9 and EPYC 7642 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Pentium 4 1.9 and EPYC 7642. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2 | DDR4 Eight-channel |
| Maximum memory size | no data | 4 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 204.763 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Physical cores | 1 | 48 |
| Threads | 1 | 96 |
| Chip lithography | 180 nm | 7 nm |
| Power consumption (TDP) | 69 Watt | 225 Watt |
Pentium 4 1.9 has 226.1% lower power consumption.
EPYC 7642, on the other hand, has 4700% more physical cores and 9500% more threads, and a 2471.4% more advanced lithography process.
We couldn't decide between Pentium 4 1.9 and EPYC 7642. We've got no test results to judge.
Note that Pentium 4 1.9 is a desktop processor while EPYC 7642 is a server/workstation one.
Should you still have questions on choice between Pentium 4 1.9 and EPYC 7642, ask them in Comments section, and we shall answer.
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