AMD EPYC 7773X vs Intel Core Ultra 5 226V Comparison

The Verdict

The Intel Core Ultra 5 226V and AMD EPYC 7773X are not competing products in any realistic sense; they serve entirely different markets. The data shows the AMD EPYC 7773X wins 7 of 8 head-to-head benchmarks, with massive leads in every multi-threaded and even single-threaded Cinebench test. The Intel Core Ultra 5 226V wins exactly one head-to-head test: Geekbench single-core, where it scores 1930 versus 1536, a 25.7% advantage.

For a mobile user who needs a low-power, single-core responsive chip for everyday tasks and light workloads, the Intel Core Ultra 5 226V is the only sensible pick. Its 17 watt TDP and integrated Arc 130V graphics make it a natural fit for thin laptops. For anyone running server workloads, heavy rendering, virtualization, or large-scale data processing, the AMD EPYC 7773X is the clear choice. Its 64 cores and 128 threads, combined with a 768 MB shared L3 cache, deliver Cinebench R23 multi-core performance that is 87.3% higher than the Intel part. There is no scenario where these two should be cross-shopped; the verdict is dictated by platform and workload, not by benchmark score alone.

Architecture Differences

The Intel Core Ultra 5 226V is built on Lunar Lake architecture using a 3 nm process node, fabricated by TSMC. It has 8 cores and 8 threads, meaning no hyper-threading, with a base clock of 2.10 GHz and a boost clock of 4.50 GHz. Its cache layout is unusual: 192 KB L1 per core, 2.5 MB L2 per core, and 8 MB shared L3. This is a mobile-focused design with a 17 watt TDP, socketed on Intel BGA 2833, and it includes integrated Arc 130V graphics. The memory support is listed as dependent on the motherboard, with a dual-channel memory bus, and it does not support ECC memory. PCIe is Gen 5 with 4 lanes from the CPU only.

The AMD EPYC 7773X is built on Zen 3 architecture, specifically the Milan-X codename, using a 7 nm process node, also fabricated by TSMC. It has 64 cores and 128 threads, with a base clock of 2.20 GHz and a boost clock of 3.50 GHz. The cache hierarchy is very different: 64 KB L1 per core, 512 KB L2 per core, and a massive 768 MB shared L3, which is the defining feature of the Milan-X line. It uses AMD Socket SP3, has a 280 watt TDP, and is a server/workstation part with no integrated graphics. Memory support is DDR4 with an eight-channel bus and 204.8 GB/s of bandwidth, and it supports ECC memory. PCIe is Gen 4 with 128 lanes from the CPU. The transistor count is listed as 33,200 million with a die size of 8x 81 mm².

The core count difference is the primary architectural gap. The EPYC has 8 times the cores and 16 times the threads. The L3 cache difference is also extreme: 768 MB versus 8 MB, a 96x difference in favor of AMD. The Intel part compensates with a higher boost clock (4.50 GHz vs 3.50 GHz) and a newer process node, but that does not overcome the raw resource disparity in multi-threaded workloads.

Head-to-Head Benchmarks

The benchmark results are lopsided. In Cinebench R15 multi-core, the EPYC scores 7825 against the Intel's 1501, a delta of -80.8% for the Intel part. The single-core R15 result also goes to AMD: 1104 versus 267, a -75.8% delta. This is notable because single-core performance is typically where a low-power mobile chip might compete, but the EPYC's higher base clock and Zen 3 IPC still dominate.

Cinebench R20 follows the same pattern. Multi-core: EPYC 32608, Intel 6381, delta -80.4%. Single-core: EPYC 4603, Intel 900, delta -80.4%. The consistency of the delta across R15 and R20 suggests a linear scaling relationship that heavily favors the EPYC.

Cinebench R23 shows the largest gap. Multi-core: EPYC 77639, Intel 9848, delta -87.3%. This is the widest margin in any test, reflecting the EPYC's ability to sustain high throughput across 64 cores. Single-core R23: EPYC 10960, Intel 1744, delta -84.1%. Even in a test that should favor higher clocks, the EPYC wins by a wide margin.

Geekbench multi-core: EPYC 15554, Intel 8598, delta -44.7%. This is the closest multi-threaded result, but AMD still leads by nearly half. The only Intel win is Geekbench single-core: 1930 versus 1536, a 25.7% advantage for the Intel Core Ultra 5 226V. This indicates that in a specific mixed workload that Geekbench's single-core test measures, the Intel part's higher boost clock and newer architecture give it a real edge.

The overall win count stands at 1 for Intel and 7 for AMD. The data clearly shows that the EPYC 7773X is the dominant performer in nearly every measured category, with the Intel part only taking a narrow single-core Geekbench victory.

Specification Differences

| Specification | Intel Core Ultra 5 226V | AMD EPYC 7773X |

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

| Cores | 8 | 64 |

| Threads | 8 | 128 |

| Base Clock | 2.10 GHz | 2.20 GHz |

| Boost Clock | 4.50 GHz | 3.50 GHz |

| TDP | 17 W | 280 W |

| Socket | Intel BGA 2833 | AMD Socket SP3 |

| Architecture | Lunar Lake | Zen 3 (Milan-X) |

| Process Node | 3 nm | 7 nm |

| L1 Cache | 192 KB (per core) | 64 KB (per core) |

| L2 Cache | 2.5 MB (per core) | 512 KB (per core) |

| L3 Cache | 8 MB (shared) | 768 MB (shared) |

| Memory Support | Depends on motherboard | DDR4 |

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

| Memory Bandwidth | Not listed | 204.8 GB/s |

| ECC Memory | No | Yes |

| PCIe | Gen 5, 4 Lanes (CPU only) | Gen 4, 128 Lanes (CPU only) |

| Integrated Graphics | Arc 130V | None |

| Market Segment | Mobile | Server/Workstation |

| Release Date | 2024-09-23 | 2022-03-21 |

| Transistor Count | Not listed | 33,200 million |

| Die Size | Not listed | 8x 81 mm² |

The specification table shows the fundamental divergence. The Intel part has a much higher boost clock and a smaller process node, but the EPYC has 8x the cores, 16x the threads, a vastly larger L3 cache, and eight-channel memory. The TDP difference is also stark: 17 W versus 280 W, which explains the thermal and power envelope differences between a mobile chip and a server processor. The EPYC also supports ECC memory, which is critical for server reliability, while the Intel part does not.

FAQ

Q: Which processor has more cores and threads?

A: The AMD EPYC 7773X has 64 cores and 128 threads. The Intel Core Ultra 5 226V has 8 cores and 8 threads.

Q: In which benchmark does the Intel Core Ultra 5 226V beat the AMD EPYC 7773X?

A: The Intel part wins only Geekbench single-core, scoring 1930 against the EPYC's 1536, a 25.7% advantage.

Q: How large is the L3 cache difference between the two?

A: The AMD EPYC 7773X has 768 MB of shared L3 cache, while the Intel Core Ultra 5 226V has 8 MB of shared L3 cache. That is a 96x difference in favor of AMD.

Q: Does the AMD EPYC 7773X support ECC memory?

A: Yes, ECC memory is supported. The Intel Core Ultra 5 226V does not support ECC memory.

Q: What is the memory bus configuration for each processor?

A: The AMD EPYC 7773X uses an eight-channel memory bus with 204.8 GB/s bandwidth. The Intel Core Ultra 5 226V uses a dual-channel memory bus, with memory support depending on the motherboard.

Q: What is the TDP of each processor?

A: The Intel Core Ultra 5 226V has a TDP of 17 watts. The AMD EPYC 7773X has a TDP of 280 watts.

Where Each One Wins

The AMD EPYC 7773X wins in every Cinebench test, both single-core and multi-core, across R15, R20, and R23. The deltas range from -75.8% to -87.3% in favor of AMD, meaning the EPYC is anywhere from 3 to 7 times faster in those tests. It also wins Geekbench multi-core by 44.7%. This makes it the obvious choice for server-side rendering, scientific computing, virtualization hosts, and any workload that can scale across 64 cores and 128 threads. The 768 MB L3 cache is a massive advantage for datasets that fit within that cache, reducing memory traffic and speeding up repeated access patterns. The eight-channel DDR4 memory with 204.8 GB/s bandwidth further supports high-throughput server tasks.

The Intel Core Ultra 5 226V wins only Geekbench single-core, with a 25.7% margin. This is a meaningful result for mobile users who prioritize snappy application launches, web browsing, and light productivity tasks where single-threaded responsiveness matters more than raw core count. Its 4.50 GHz boost clock and 3 nm process node give it excellent per-thread efficiency within a 17 watt envelope. The integrated Arc 130V graphics also make it a self-contained mobile package, eliminating the need for a discrete GPU in thin-and-light laptops. The dual-channel memory bus is sufficient for everyday tasks, and the lack of ECC support is irrelevant for consumer mobile use.

The use-case split is clean. If the workload is multi-threaded, the EPYC 7773X wins decisively. If the workload is single-threaded and runs on battery power, the Intel Core Ultra 5 226V has a specific, narrow advantage. There is no overlap: you would not deploy an EPYC in a laptop, and you would not put a Lunar Lake chip in a server rack. The data simply confirms the intended market segmentation.