EPYC Embedded 3251 vs Core 2 Quad Q9450
Contents
Primary details
Comparing processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | 2535 | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | no data | AMD EPYC Embedded |
| Power efficiency | 0.56 | no data |
| Designer | Intel | AMD |
| Architecture codename | Yorkfield (2007−2009) | Zen (2017−2020) |
| Release date | March 2008 (17 years ago) | 21 February 2018 (7 years ago) |
| Launch price (MSRP) | no data | $315 |
Detailed specifications
Core 2 Quad Q9450 and EPYC Embedded 3251 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 | 4 (Quad-Core) | 8 (Octa-Core) |
| Threads | 4 | 16 |
| Base clock speed | 2.66 GHz | 2.5 GHz |
| Boost clock speed | 2.67 GHz | 3.1 GHz |
| Bus rate | 1333 MHz | no data |
| Multiplier | no data | 25 |
| L1 cache | 64K (per core) | 96K (per core) |
| L2 cache | 12 MB (shared) | 512K (per core) |
| L3 cache | 0 KB | 16 MB (shared) |
| Chip lithography | 45 nm | 14 nm |
| Die size | 2x 107 mm2 | 192 mm2 |
| Maximum case temperature (TCase) | 71 °C | no data |
| Number of transistors | 820 million | 4,800 million |
| 64 bit support | + | + |
| Windows 11 compatibility | - | - |
| Unlocked multiplier | - | + |
| VID voltage range | 0.85V-1.3625V | no data |
Compatibility
Information on Core 2 Quad Q9450 and EPYC Embedded 3251 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 | 1 (Uniprocessor) |
| Socket | LGA775 | TR4 |
| Power consumption (TDP) | 95 Watt | 50 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core 2 Quad Q9450 and EPYC Embedded 3251. 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
Core 2 Quad Q9450 and EPYC Embedded 3251 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 Quad Q9450 and EPYC Embedded 3251 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 Core 2 Quad Q9450 and EPYC Embedded 3251. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | DDR1, DDR2, DDR3 | DDR4 Eight-channel |
| Maximum memory size | no data | 512 GB |
| Max memory channels | no data | 2 |
| Maximum memory bandwidth | no data | 42.671 GB/s |
| ECC memory support | - | + |
Pros & cons summary
| Physical cores | 4 | 8 |
| Threads | 4 | 16 |
| Chip lithography | 45 nm | 14 nm |
| Power consumption (TDP) | 95 Watt | 50 Watt |
EPYC Embedded 3251 has 100% more physical cores and 300% more threads, a 221.4% more advanced lithography process, and 90% lower power consumption.
We couldn't decide between Intel Core 2 Quad Q9450 and AMD EPYC Embedded 3251. We've got no test results to judge.
Note that Core 2 Quad Q9450 is a desktop processor while EPYC Embedded 3251 is a server/workstation one.
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