AMD EPYC 7742
- Boost/Base Clock:
- 3.4 GHz / 2.25 GHz
- Core/Thread Count:
- 64 Core / 128 Thread
- Cache:
- 256MB L3 + 32MB L2 + 4MB L1
- TDP:
- 225 Watts
- CPU Process Node:
- 7 Nanometers (TSMC)
- CPU Socket:
- LGA 4094 (SP3)
- CPU Series:
- Zen 2
- Memory Support:
- DDR4-3200 ECC RDIMM
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Manufacturer: AMD Last updated: September 9, 2026
Description
Launched mid-2019, the AMD EPYC 7742 is a 64-core, 128-thread server processor built on Zen 2 as part of AMD's EPYC Rome lineup, running a 2.25 GHz base clock that boosts to 3.4 GHz within a 225 Watt TDP.
This chip's compute chiplets are fabricated at TSMC on 7nm while the I/O die uses GlobalFoundries' 14nm process, a chiplet design specifically built for massive server-scale parallelism rather than any single-threaded workload.
Platform
This server-class chip requires the specialized LGA 4094 (SP3) server socket, typically deployed in dual-socket configurations for genuinely massive aggregate core counts in data center environments.
How Is the EPYC 7742 in Terms of Performance
With 64 cores and 128 threads, this chip is built specifically for server and data center workloads: virtualization, cloud computing, and massively parallel processing, where its scale far exceeds any consumer or workstation desktop chip.
Benchmarks
Cinebench R23 multi-core scores of 43,467 place this chip at genuine server-tier throughput. Geekbench 5 multi-core scores of 25,204 confirm massive parallel capability, though single-core scores (1,243 Cinebench R23) reflect the conservative per-core clocks typical of high-core-count server chips optimized for aggregate throughput over individual thread speed.
Specifications
| Form Factor | Server & Enthusiast |
|---|---|
| Brand | AMD |
| Series | EPYC |
| Model Number | 7742 |
| Boost/Base Clock | 3.4 GHz / 2.25 GHz |
| Core/Thread Count | 64 Core / 128 Thread |
| Cache | 256MB L3 + 32MB L2 + 4MB L1 |
| TDP | 225 Watts |
| CPU Process Node | 7 Nanometers (TSMC), 14nm I/O (GlobalFoundries) |
| CPU Socket | LGA 4094 (SP3) |
| CPU Series | Zen 2, EPYC 7002 "Rome" |
| Memory Support | DDR4-3200 ECC RDIMM |
Expert Review
Rated by the Consumercarts editorial team, not by users
Best for
- Data center and server deployments needing genuine 64-core, 128-thread aggregate throughput
Not for
- Any consumer, gaming, or workstation desktop use — this is purpose-built server hardware requiring specialized infrastructure