Core 2 Quad Q9400s vs EPYC 7401P
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 508 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Cost-effectiveness evaluation | 3.60 | no data |
| Market segment | Server | Desktop processor |
| Series | AMD EPYC | no data |
| Power efficiency | 3.95 | no data |
| Designer | AMD | Intel |
| Manufacturer | no data | Intel |
| Architecture codename | Naples (2017−2018) | Yorkfield (2007−2009) |
| Release date | 29 June 2017 (8 years ago) | 18 January 2009 (17 years ago) |
| Launch price (MSRP) | $1,075 | no data |
Cost-effectiveness evaluation
Performance per price, higher is better.
Performance to price scatter graph
Detailed specifications
EPYC 7401P and Core 2 Quad Q9400s 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 | 24 (Tetracosa-Core) | 4 (Quad-Core) |
| Threads | 48 | 4 |
| Base clock speed | 2 GHz | 2.66 GHz |
| Boost clock speed | 3 GHz | 0.67 GHz |
| Bus rate | no data | 1333 MHz |
| Multiplier | 20 | no data |
| L1 cache | 96K (per core) | 64 KB (per core) |
| L2 cache | 512K (per core) | 6 MB (shared) |
| L3 cache | 64 MB (shared) | 0 KB |
| Chip lithography | 14 nm | 45 nm |
| Die size | 192 mm2 | 2x 82 mm2 |
| Maximum case temperature (TCase) | no data | 76 °C |
| Number of transistors | 4,800 million | 456 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | + | - |
| VID voltage range | no data | 0.85V-1.3625V |
Compatibility
Information on EPYC 7401P and Core 2 Quad Q9400s 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 (Uniprocessor) | 1 |
| Socket | TR4 | LGA775 |
| Power consumption (TDP) | 170 Watt | 65 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by EPYC 7401P and Core 2 Quad Q9400s. 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 | - |
Security technologies
EPYC 7401P and Core 2 Quad Q9400s 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 EPYC 7401P and Core 2 Quad Q9400s are enumerated here.
| AMD-V | + | - |
| VT-d | no data | + |
| VT-x | no data | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by EPYC 7401P and Core 2 Quad Q9400s. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR4 Eight-channel | DDR1, DDR2, DDR3 |
| Maximum memory size | 2 TiB | no data |
| Max memory channels | 8 | no data |
| Maximum memory bandwidth | 170.671 GB/s | no data |
| ECC memory support | + | - |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | On certain motherboards (Chipset feature) |
Peripherals
Specifications and connection of peripherals supported by EPYC 7401P and Core 2 Quad Q9400s.
| PCIe version | 3.0 | 2.0 |
| PCI Express lanes | 128 | no data |
Pros & cons summary
| Recency | 29 June 2017 | 18 January 2009 |
| Physical cores | 24 | 4 |
| Threads | 48 | 4 |
| Chip lithography | 14 nm | 45 nm |
| Power consumption (TDP) | 170 Watt | 65 Watt |
EPYC 7401P has an age advantage of 8 years, 500% more physical cores and 1100% more threads, and a 221.4% more advanced lithography process.
Core 2 Quad Q9400s, on the other hand, has 161.5% lower power consumption.
We couldn't decide between AMD EPYC 7401P and Intel Core 2 Quad Q9400s. We've got no test results to judge.
Be aware that EPYC 7401P is a server/workstation processor while Core 2 Quad Q9400s is a desktop one.
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