EPYC 7642 vs Opteron 6168
Primary details
Comparing Opteron 6168 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 | 5.54 |
| Market segment | Server | Server |
| Series | no data | AMD EPYC |
| Power efficiency | no data | 15.57 |
| Architecture codename | Magny-Cours (2010−2011) | Zen 2 (2017−2020) |
| Release date | 29 March 2010 (14 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
Opteron 6168 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 | 12 (Dodeca-Core) | 48 (Octatetraconta-Core) |
| Threads | 12 | 96 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 1.9 GHz | 3.4 GHz |
| Multiplier | no data | 23 |
| L1 cache | 768 KB (shared) | 96K (per core) |
| L2 cache | 6 MB (per core) | 512K (per core) |
| L3 cache | 12 MB | 256 MB (shared) |
| Chip lithography | 45 nm | 7 nm, 14 nm |
| Die size | 346 mm2 | 192 mm2 |
| Maximum case temperature (TCase) | 69 °C | no data |
| Number of transistors | 1,800 million | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | + |
| Unlocked multiplier | - | + |
Compatibility
Information on Opteron 6168 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 | 2 | 2 (Multiprocessor) |
| Socket | G34 | TR4 |
| Power consumption (TDP) | 115 Watt | 225 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Opteron 6168 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 Opteron 6168 and EPYC 7642 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Opteron 6168 and EPYC 7642. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR3 | 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 | - | + |
Peripherals
Specifications and connection of peripherals supported by Opteron 6168 and EPYC 7642.
| PCIe version | 2.0 | no data |
Pros & cons summary
| Recency | 29 March 2010 | 7 August 2019 |
| Physical cores | 12 | 48 |
| Threads | 12 | 96 |
| Chip lithography | 45 nm | 7 nm |
| Power consumption (TDP) | 115 Watt | 225 Watt |
Opteron 6168 has 95.7% lower power consumption.
EPYC 7642, on the other hand, has an age advantage of 9 years, 300% more physical cores and 700% more threads, and a 542.9% more advanced lithography process.
We couldn't decide between Opteron 6168 and EPYC 7642. We've got no test results to judge.
Should you still have questions on choice between Opteron 6168 and EPYC 7642, ask them in Comments section, and we shall answer.
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