AMD EPYC 74F3 vs Intel Core i5-9600K Comparison

The AMD EPYC 74F3 and Intel Core i5-9600K occupy completely different corners of the processor market, and the benchmark data reflects that chasm. The EPYC 74F3 is a 24-core, 48-thread server/workstation part built on TSMC's 7 nm process, while the i5-9600K is a 6-core, 6-thread desktop chip on Intel's 14 nm node. In every head-to-head Cinebench test, the EPYC wins by a margin of roughly 470%, making any direct performance comparison almost academic. The data shows that the EPYC 74F3 is designed for multi-threaded server workloads, whereas the i5-9600K targets mainstream desktop use with an unlocked multiplier and integrated graphics.

The Verdict

The data is unambiguous: the AMD EPYC 74F3 is for professionals running heavy multi-threaded workloads, and the Intel Core i5-9600K is for desktop users who need a compact, overclockable chip. The EPYC 74F3 delivers 24 cores and 48 threads, compared to just 6 cores and 6 threads on the i5-9600K. In Cinebench R23 multi-core, the EPYC scores 51,566 versus 9,055 for the i5 — a 469.5% advantage. If your work involves rendering, virtualization, or any task that scales with core count, the EPYC is the only rational choice from this data.

However, the i5-9600K is not without merit. It has a higher boost clock (4.60 GHz vs 4.00 GHz), a lower TDP (95 W vs 240 W), and it supports dual-channel memory with 42.7 GB/s bandwidth — far below the EPYC's eight-channel 204.8 GB/s, but adequate for desktop tasks. The i5 also has integrated UHD 630 graphics, meaning you can build a system without a discrete GPU. The EPYC has no integrated graphics and requires a dedicated GPU. Choose the i5-9600K for a cost-sensitive desktop build with overclocking; choose the EPYC 74F3 for a server or workstation where raw multi-core throughput is paramount.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 74F3 has 24 cores and 48 threads, while the Intel Core i5-9600K has 6 cores and 6 threads. The EPYC's thread count is eight times higher.

Q: How big is the multi-core performance gap in Cinebench?

A: In Cinebench R23 multi-core, the EPYC 74F3 scores 51,566 versus 9,055 for the i5-9600K, a 469.5% lead for the EPYC. The R20 multi-core test shows a similar 469.5% gap (21,657 vs 3,803).

Q: Which processor has a higher single-core score?

A: The EPYC 74F3 wins every single-core test. In Cinebench R23 single-core, it scores 7,279 versus 1,278 for the i5-9600K, a 469.6% advantage. Even with the i5's higher boost clock (4.60 GHz vs 4.00 GHz), the EPYC's Zen 3 architecture dominates.

Q: Do both processors support ECC memory?

A: No. The EPYC 74F3 supports ECC memory, while the i5-9600K does not. The EPYC also uses eight-channel memory with 204.8 GB/s bandwidth, versus dual-channel 42.7 GB/s for the i5.

Q: Which chip has integrated graphics?

A: The Intel Core i5-9600K includes UHD 630 integrated graphics. The AMD EPYC 74F3 has no integrated graphics, so a discrete GPU is required.

Q: What is the production status of each processor?

A: The EPYC 74F3 is listed as "Active," while the i5-9600K is "End-of-life." The EPYC's release date is March 14, 2021; the i5 launched on October 18, 2018.

Architecture Differences

The two processors are built on fundamentally different architectures. The EPYC 74F3 uses AMD's Zen 3 architecture, codenamed Milan, fabricated on TSMC's 7 nm process. It contains 33,200 million transistors across four separate 81 mm² dies. The i5-9600K uses Intel's Coffee Lake architecture, codenamed Coffee Lake, on a 14 nm process from Intel. The EPYC's newer, denser process allows it to pack 24 cores into a socket designed for servers, while the i5's older process limits it to 6 cores.

Cache organization is another stark difference. The EPYC 74F3 has a massive 256 MB shared L3 cache, plus 64 KB L1 and 512 KB L2 per core. The i5-9600K has just 9 MB shared L3, 64 KB L1 per core, and 256 KB L2 per core. This 256 MB L3 is a key advantage for the EPYC in workloads with large working sets. The EPYC also supports PCIe Gen 4 with 128 lanes (CPU only), while the i5 is limited to PCIe Gen 3 with 16 lanes. The EPYC targets the server/workstation market with eight-channel DDR4 memory and ECC support; the i5 is a desktop part with dual-channel memory and no ECC.

Specification Differences

Here are the fields where the two processors differ directly from the data:

| Specification | AMD EPYC 74F3 | Intel Core i5-9600K |

|---|---|---|

| Cores | 24 | 6 |

| Threads | 48 | 6 |

| Base Clock | 2.80 GHz | 3.70 GHz |

| Boost Clock | 4.00 GHz | 4.60 GHz |

| TDP | 240 W | 95 W |

| Socket | AMD Socket SP3 | Intel Socket 1151 |

| Process Node | 7 nm (TSMC) | 14 nm (Intel) |

| L2 Cache | 512 KB (per core) | 256 KB (per core) |

| L3 Cache | 256 MB (shared) | 9 MB (shared) |

| Memory Bus | Eight-channel | Dual-channel |

| Memory Bandwidth | 204.8 GB/s | 42.7 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 4, 128 Lanes | Gen 3, 16 Lanes |

| Integrated Graphics | None | UHD 630 |

| Market Segment | Server/Workstation | Desktop |

| Production Status | Active | End-of-life |

| Multiplier Unlocked | No | Yes |

| Launch MSRP | $2900 | — |

The i5-9600K has higher base and boost clocks (3.70/4.60 GHz vs 2.80/4.00 GHz) and a far lower TDP (95 W vs 240 W). It also has an unlocked multiplier, which the EPYC lacks. The EPYC counters with 4x more cores, 8x more threads, 28x more L3 cache, and nearly 5x the memory bandwidth.

Head-to-Head Benchmarks

The head-to-head data shows a total sweep: the EPYC 74F3 wins all 6 benchmark comparisons, and the i5-9600K wins none. The margins are extraordinarily consistent, hovering around 470% in every test. In Cinebench R15 multi-core, the EPYC scores 5,197 versus 912 for the i5, a 469.8% lead. The single-core R15 test shows 733 vs 128, a 472.7% margin — the largest single-core gap in the data.

Cinebench R20 follows the same pattern. Multi-core: 21,657 vs 3,803 (469.5% delta). Single-core: 3,057 vs 536 (470.3% delta). Cinebench R23 multi-core: 51,566 vs 9,055 (469.5% delta). Single-core: 7,279 vs 1,278 (469.6% delta). The consistency of these deltas suggests that the EPYC's advantage is not workload-specific but architectural — the Zen 3 core simply outperforms Coffee Lake at every clock speed.

It is notably the i5-9600K has additional benchmarks in its file (Geekbench, Passmark) that the EPYC lacks, so no direct comparison is possible for those tests. The EPYC's file contains only Cinebench scores, which are the basis for the 6-0 win count.

Where Each One Wins

The EPYC 74F3 wins everywhere the data measures. In all Cinebench versions (R15, R20, R23) and both single-core and multi-core modes, the EPYC leads by roughly 470%. This makes it the clear pick for any multi-threaded rendering, simulation, or server workload. The 256 MB L3 cache and eight-channel memory bandwidth are designed for data-intensive enterprise tasks, and the ECC memory support adds reliability for long-running computations. The EPYC's 69th percentile ranking among all CPUs, combined with its nearest rival being the AMD EPYC 7702P (which scores 15,130 on average, just 1.4% higher), places it squarely in high-end server territory.

The i5-9600K, despite losing every head-to-head test, has qualitative advantages in specific use cases. Its lower 95 W TDP makes it far easier to cool in a compact desktop build. Its unlocked multiplier allows overclocking, which the EPYC does not support. The integrated UHD 630 graphics eliminate the need for a discrete GPU in basic systems. Its higher boost clock (4.60 GHz) and 14 nm process are older, but the data shows the EPYC's single-core performance is still 470% higher, so the i5's clock advantage does not translate to a benchmark win.

For a builder, the choice is simple: the EPYC 74F3 is a server processor with a launch MSRP of $2900, requiring a Socket SP3 motherboard, eight-channel memory, and a dedicated GPU. The i5-9600K is an end-of-life desktop chip with a 95 W TDP, suitable for a Socket 1151 board with dual-channel memory and no discrete GPU needed. If you need cores and threads, the EPYC is the data-backed winner. If you need a low-power, overclockable desktop part with integrated graphics, the i5-9600K fills that role — just don't expect it to compete in multi-threaded benchmarks.