AMD® EPYC™ 7742

The AMD EPYC 7742 is a server processor with 64 cores and 128 threads, built on the Zen 2 architecture. It launched in Aug 2019. Clocks run from 2.25 GHz base to 3.4 GHz boost. It supports DDR4 memory. The chip drops into the SP3 socket and exposes PCIe 4.0 (128 lanes). Rated TDP is 225 W. Notable platform capabilities: AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 7742 scores 2,098 in single-core performance and 69,679 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 12,091 for overall performance, 48,229 for productivity performance, 42,100 for creator performance, 97,551 for engineering performance and 23,714 for gaming performance. Its multi-core throughput works out to 1,089 per core, 544 per thread and 310 per watt. Its computed efficiency index is 806. Its performance index is 150, so its overall performance is 50% above the Intel Core i5-12400 (index 100). Each bar shows the score as a share of a reference ceiling, which is the larger of the 99th-percentile score across the Feex CPU database and a fixed baseline.

Workload sub-scores (integer math, floating point, compression, encryption, physics, SIMD, prime sieve and sorting) are not recorded for the AMD EPYC 7742.

The AMD EPYC 7742 has 64 physical cores and runs 128 logical threads. It does not use a hybrid performance and efficiency core layout. It runs 2 threads per core. It runs at a base clock of 2.25 GHz and boosts up to 3.40 GHz.

The AMD EPYC 7742 is a server processor, belongs to the AMD EPYC family and uses the Zen 2 architecture. It launched in Aug 2019.

The AMD EPYC 7742 has 32 MB of L2 cache. That adds up to about 32.0 MB of cache, or 0.50 MB per core. Each core has 512 KB of private L2 cache. Feex has no recorded L1 cache size for this processor.

The AMD EPYC 7742 supports DDR4 memory, uses 8 memory channels, runs memory at up to 3,200 MT/s and delivers up to 204.8 GB/s of memory bandwidth. It does not support DDR5 and LPDDR memory.

The AMD EPYC 7742 uses the SP3 socket, supports PCI Express 4.0 and provides up to 128 PCIe lanes.

The AMD EPYC 7742 has a rated TDP of 225 W.

Instruction sets, security, virtualization, AI acceleration and OS readiness. Features are listed as supported, explicitly not supported, or not recorded; a feature that is not recorded is not the same as unsupported.

It launched at a price of $6,950.

Feex has recorded 51% of the specifications it tracks for the AMD EPYC 7742. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Efficiency Cores, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L1 Cache (Total) and L4 Cache. Memory Support: ECC Memory. Graphics: Integrated Graphics, Graphics Model, Graphics Base Clock, Graphics Max Clock, Execution Units, Display Outputs and Max Video Memory. Platform & Compatibility: Package and Package Size. Power & Thermals: Base Power, Maximum Turbo Power, Configurable TDP (Min), Configurable TDP (Max), Max Junction Temperature and Tcase. Physical & Manufacturing: Transistor Count, Die Size, Die Count and Foundry. Naming & Aliases: SKU, Model Number, Processor Number and Part Number.

Processors that use the same SP3 socket as the AMD EPYC 7742 and have the closest multi-core scores in the Feex database include AMD EPYC 7H12, AMD EPYC 7573X, AMD EPYC 7662, AMD EPYC 75F3 and AMD EPYC 74F3.