AMD® EPYC™ 7443

The AMD EPYC 7443 is a server processor with 24 cores and 48 threads, built on the Zen 3 architecture. It launched in Mar 2021. Clocks run from 2.85 GHz base to 4.0 GHz boost. A 128-MB L3 cache backs the cores (5.9 MB per core). It supports DDR4 memory. Rated TDP is 200 W. Notable platform capabilities: AMD-V (Hardware Virtualization), AMD SEV.

The AMD EPYC 7443 scores 2,927 in single-core performance and 56,743 in multi-core performance (PassMark CPU Mark ratings). From those two ratings Feex computes 12,887 for overall performance, 40,981 for productivity performance, 36,477 for creator performance, 72,347 for engineering performance and 22,967 for gaming performance. Its multi-core throughput works out to 2,364 per core, 1,182 per thread and 284 per watt. Its computed efficiency index is 911. Its performance index is 160, so its overall performance is 60% 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.

Scores for individual PassMark CPU Mark test categories. Higher is better. These are measured test scores, not computed from the single-core and multi-core ratings.

In the individual workload tests the AMD EPYC 7443 scores 228,486 in integer math, 126,459 in floating-point math, 822,116 in compression, 56,396 in cryptography, 5,019 in physics simulation, 46,165 in vector SIMD, 408 in the prime sieve and 94,709 in sorting. Higher is better. Compared with the Intel Core i5-12400, it is 288% above in integer math, 176% above in floating-point math, 260% above in compression, 391% above in cryptography, 360% above in physics simulation, 198% above in vector SIMD, 509% above in the prime sieve and 318% above in sorting. Each bar shows the score as a share of that workload's reference ceiling, the larger of the 99th-percentile score across CPUs with a recorded value and a fixed baseline.

The AMD EPYC 7443 has 24 physical cores and runs 48 logical threads. It runs 2 threads per core. It runs at a base clock of 2.85 GHz and boosts up to 4.00 GHz.

The AMD EPYC 7443 is a server processor, belongs to the AMD EPYC family and uses the Zen 3 architecture. It launched in Mar 2021.

The AMD EPYC 7443 has 1.50 MB of L1 cache, 12 MB of L2 cache and 128 MB of L3 cache. That adds up to about 141.5 MB of cache, or 5.90 MB per core. Each core has 512 KB of private L2 cache.

The AMD EPYC 7443 has a 3-level cache hierarchy: L1 at 1.5 MB, L2 at 12 MB and L3 at 128 MB. L3 is the largest level and makes up about 90% of the cache listed here.

The AMD EPYC 7443 supports DDR4 memory and uses 8 memory channels. It does not support DDR5 and LPDDR memory.

The AMD EPYC 7443 does not include integrated graphics, so a discrete graphics card is required for display output.

The AMD EPYC 7443 supports PCI Express 4.0.

The AMD EPYC 7443 has a rated TDP of 200 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.

Feex has recorded 46% of the specifications it tracks for the AMD EPYC 7443. Values Feex does not hold are shown as "Not recorded" rather than estimated.

Not recorded: Core Configuration: Performance Cores, Efficiency Cores, Hybrid Architecture, All-Core Boost and Unlocked Multiplier. Architecture & Generation: Codename, ISA Family and Market Status. Cache: L4 Cache. Memory Support: Memory Bandwidth, ECC Memory and Max Memory Speed. Platform & Compatibility: Package, Package Size and PCIe Lanes. 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, Foundry and Launch Price. Naming & Aliases: Normalized Name, SKU, Model Number, Processor Number and Part Number.

Processors close to the AMD EPYC 7443 in the Feex database, matched by socket, family, segment, architecture, core count, TDP and benchmark scores, include AMD EPYC 9455 Emb, AMD EPYC 9535, AMD EPYC 9455P, AMD EPYC 9654 and AMD EPYC 9654P.