EPYC 9745 vs i7-975 Extreme Edition
Primary details
Comparing Core i7-975 Extreme Edition and EPYC 9745 processor market type (desktop or notebook), architecture, sales start time and price.
| Place in the ranking | not rated | not rated |
| Place by popularity | not in top-100 | not in top-100 |
| Market segment | Desktop processor | Server |
| Series | Intel Core i7EE | no data |
| Architecture codename | Nehalem (2008−2010) | Turin (2024) |
| Release date | 2 June 2009 (15 years ago) | 10 October 2024 (less than a year ago) |
| Launch price (MSRP) | no data | $12,141 |
Detailed specifications
Core i7-975 Extreme Edition and EPYC 9745 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) | 128 |
| Threads | 8 | 256 |
| Base clock speed | no data | 2.4 GHz |
| Boost clock speed | 3.33 GHz | 3.7 GHz |
| Bus type | QPI | no data |
| Bus rate | 6.4 GT/s | no data |
| Multiplier | 25 | no data |
| L1 cache | no data | 80 KB (per core) |
| L2 cache | 1 MB | 1 MB (per core) |
| L3 cache | 8 MB | 256 MB (shared) |
| Chip lithography | 45 nm | 3 nm |
| Die size | 263 mm2 | no data |
| Number of transistors | 731 Million | no data |
| 64 bit support | + | + |
| Windows 11 compatibility | - | no data |
Compatibility
Information on Core i7-975 Extreme Edition and EPYC 9745 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) | 2 |
| Socket | no data | SP5 |
| Power consumption (TDP) | 130 Watt | 400 Watt |
Technologies and extensions
Technological solutions and additional instructions supported by Core i7-975 Extreme Edition and EPYC 9745. You'll probably need this information if you require some particular technology.
| AES-NI | - | + |
| AVX | - | + |
| Enhanced SpeedStep (EIST) | + | no data |
| Precision Boost 2 | no data | + |
Virtualization technologies
Virtual machine speed-up technologies supported by Core i7-975 Extreme Edition and EPYC 9745 are enumerated here.
| AMD-V | - | + |
Memory specs
Types, maximum amount and channel quantity of RAM supported by Core i7-975 Extreme Edition and EPYC 9745. Depending on the motherboard, higher memory frequencies may be supported.
| Supported memory types | no data | DDR5 |
| Maximum memory size | 24 GB | no data |
Graphics specifications
General parameters of integrated GPUs, if any.
| Integrated graphics card | no data | N/A |
Peripherals
Specifications and connection of peripherals supported by Core i7-975 Extreme Edition and EPYC 9745.
| PCIe version | no data | 5.0 |
| PCI Express lanes | no data | 128 |
Pros & cons summary
| Recency | 2 June 2009 | 10 October 2024 |
| Physical cores | 4 | 128 |
| Threads | 8 | 256 |
| Chip lithography | 45 nm | 3 nm |
| Power consumption (TDP) | 130 Watt | 400 Watt |
i7-975 Extreme Edition has 207.7% lower power consumption.
EPYC 9745, on the other hand, has an age advantage of 15 years, 3100% more physical cores and 3100% more threads, and a 1400% more advanced lithography process.
We couldn't decide between Core i7-975 Extreme Edition and EPYC 9745. We've got no test results to judge.
Note that Core i7-975 Extreme Edition is a desktop processor while EPYC 9745 is a server/workstation one.
Should you still have questions on choice between Core i7-975 Extreme Edition and EPYC 9745, ask them in Comments section, and we shall answer.
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