EPYC 7401 vs Core 2 Duo T6400
Primary details
Comparing Core 2 Duo T6400 and EPYC 7401 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | 106 |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | no data | 9.27 |
| Market segment | Laptop | Server |
| Series | Intel Core 2 Duo | AMD EPYC |
| Power efficiency | no data | 19.37 |
| Architecture codename | Penryn (2008−2011) | Naples (2017−2018) |
| Release date | 1 January 2009 (15 years ago) | 29 June 2017 (7 years ago) |
| Launch price (MSRP) | no data | $1,850 |
Cost-effectiveness evaluation
Performance per price, higher is better.
Detailed specifications
Core 2 Duo T6400 and EPYC 7401 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 | 2 (Dual-core) | 24 (Tetracosa-Core) |
| Threads | 2 | 48 |
| Base clock speed | 2 GHz | 2 GHz |
| Boost clock speed | 2 GHz | 3 GHz |
| Bus rate | 800 MHz | no data |
| Multiplier | no data | 20 |
| L1 cache | no data | 96K (per core) |
| L2 cache | 2 MB | 512K (per core) |
| L3 cache | 2 MB L2 Cache | 64 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Die size | no data | 192 mm2 |
| Maximum core temperature | 105 °C | no data |
| Number of transistors | no data | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
| VID voltage range | 1V-1.25V | no data |
Compatibility
Information on Core 2 Duo T6400 and EPYC 7401 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 | 2 (Multiprocessor) |
| Socket | PGA478 | TR4 |
| Power consumption (TDP) | 35 Watt | 170 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Duo T6400 and EPYC 7401. 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 |
| Demand Based Switching | - | no data |
Security technologies
Core 2 Duo T6400 and EPYC 7401 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 Core 2 Duo T6400 and EPYC 7401 are enumerated here.
| AMD-V | - | + |
| VT-x | - | no data |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core 2 Duo T6400 and EPYC 7401. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR4 Eight-channel |
| Maximum memory size | no data | 2 TiB |
| Max memory channels | no data | 8 |
| Maximum memory bandwidth | no data | 170.671 GB/s |
| ECC memory support | - | + |
Peripherals
Specifications and connection of peripherals supported by Core 2 Duo T6400 and EPYC 7401.
| PCIe version | no data | 3.0 |
| PCI Express lanes | no data | 128 |
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
| Recency | 1 January 2009 | 29 June 2017 |
| Physical cores | 2 | 24 |
| Threads | 2 | 48 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 35 Watt | 170 Watt |
Core 2 Duo T6400 has 385.7% lower power consumption.
EPYC 7401, on the other hand, has an age advantage of 8 years, 1100% more physical cores and 2300% more threads, and a 221.4% more advanced lithography process.
We couldn't decide between Core 2 Duo T6400 and EPYC 7401. We've got no test results to judge.
Be aware that Core 2 Duo T6400 is a notebook processor while EPYC 7401 is a server/workstation one.
Should you still have questions on choice between Core 2 Duo T6400 and EPYC 7401, ask them in Comments section, and we shall answer.
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