EPYC 7742: specs and benchmarks
Aggregated performance score
It provides good benchmark performance at 44.37% of a leader's which is Ryzen Threadripper PRO 7995WX.
Summary
AMD started EPYC 7742 sales 7 August 2019 at a recommended price of $6,950. This is a Zen 2 architecture desktop processor primarily aimed at professional systems. It has 64 cores and 128 threads, and is based on 7 nm, 14 nm manufacturing technology, with a max turbo frequency of 3400 MHz and an unlocked multiplier.
Compatibility-wise, this is AMD Socket TR4 processor with a TDP of 225 Watt. It supports DDR4 Eight-channel memory.
General info
EPYC 7742 processor market type (desktop or notebook), architecture, sales start time and pricing.
| Place in performance ranking | 40 | |
| Place by popularity | not in top-100 | |
| Value for money | 26.11 | |
| Market segment | Server | |
| Series | AMD EPYC | |
| Architecture codename | Zen 2 (2019−2020) | |
| Release date | 7 August 2019 (4 years ago) | |
| Launch price (MSRP) | $6,950 | of 305 (Core i7-870) |
| Current price | $1656 (0.2x MSRP) | of 15701 (Xeon Platinum 8276L) |
Value for money
Performance per price, higher is better.
Technical specs
Basic microprocessor parameters such as number of cores, number of threads, base frequency and turbo boost clock, lithography, cache size and multiplier lock state. These parameters can generally indicate CPU performance, but to be more precise you have to review its test results.
| Physical cores | 64 (Tetrahexaconta-Core) | |
| Threads | 128 | |
| Base clock speed | 2.25 GHz | of 4.7 (FX-9590) |
| Boost clock speed | 3.4 GHz | of 6.2 (Core i9-14900KS) |
| L1 cache | 96K (per core) | of 7475.2 (Apple M2 Pro 10-Core) |
| L2 cache | 512K (per core) | of 98304 (Ryzen Threadripper PRO 7995WX) |
| L3 cache | 256 MB (shared) | of 768 (EPYC 7373X) |
| Chip lithography | 7 nm, 14 nm | of 3 (Apple M3 Max 16-Core) |
| Die size | 192 mm2 | |
| Number of transistors | 4,800 million | of 9900000 (Ryzen 5 7645HX) |
| 64 bit support | + | |
| Windows 11 compatibility | + | |
| Unlocked multiplier | Yes |
Compatibility
Information on EPYC 7742 compatibility with other computer components and devices: 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 | 2 (Multiprocessor) | of 8 (Opteron 842) |
| Socket | TR4 | |
| Power consumption (TDP) | 225 Watt | of 400 (Xeon Platinum 9282) |
Technologies and extensions
Technological capabilities and additional instructions supported by EPYC 7742. You'll probably need this information if you require some particular technology.
| AES-NI | + | |
| AVX | + |
Virtualization technologies
Supported virtual machine optimization technologies. Some are specific to Intel only, some to AMD.
| AMD-V | + |
Memory specs
Types, maximum amount and channel number of RAM supported by EPYC 7742's memory controller. Depending on the motherboard, higher memory frequency may be supported.
| Supported memory types | DDR4 Eight-channel | |
| Maximum memory size | 4 TiB | of 786 (Xeon E5-2670 v3) |
| Max memory channels | 8 | of 12 (Xeon Platinum 9221) |
| Maximum memory bandwidth | 204.763 GB/s | of 460.8 (EPYC 9124) |
| ECC memory support | + |
Benchmark performance
Single-core and multi-core benchmark results of EPYC 7742. Overall benchmark performance is measured in points in 0-100 range, higher is better.
Combined synthetic benchmark score
This is our combined benchmark performance rating. We are regularly improving our combining algorithms, but if you find some perceived inconsistencies, feel free to speak up in comments section, we usually fix problems quickly.
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.
Benchmark coverage: 68%
GeekBench 5 Single-Core
GeekBench 5 Single-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses only a single CPU core.
Benchmark coverage: 42%
GeekBench 5 Multi-Core
GeekBench 5 Multi-Core is a cross-platform application developed in the form of CPU tests that independently recreate certain real-world tasks with which to accurately measure performance. This version uses all available CPU cores.
Benchmark coverage: 42%
Send your test results of EPYC 7742.
Similar processors
Here is our recommendation of several processors that are more or less close in performance to the one reviewed.
Recommended GPUs
People consider these graphics cards to be good for EPYC 7742, according to our PC configuration statistics.
These are the fastest graphics cards for EPYC 7742 in our user configuration statistics. There is a total of 29 configurations based on EPYC 7742 in our database.
