AMD Ryzen 3 5300U vs Intel Xeon W-2123 Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen 3 5300U has an average benchmark score of 2135, while the Intel Xeon W-2123 scores 2079. The Ryzen sits 0.4% ahead of the AMD Ryzen 5 7520C and 0.5% ahead of the Intel Core i7-1160G7, while the Xeon is 0.1% behind the Intel Core i3-9350KF.

Q: How do the two chips compare in single-core Cinebench R23 performance?

A: The AMD Ryzen 3 5300U wins single-core Cinebench R23 with a score of 1115 versus the Xeon W-2123's 1014, a 10% advantage. The Ryzen also dominates Cinebench R15 single-core, scoring 170 versus 102, a 66.7% lead.

Q: Does the Xeon W-2123 win any benchmark outright?

A: Yes. The Xeon W-2123 takes Cinebench R23 multicore with a score of 7189 compared to the Ryzen's 5341, a 25.7% margin. That is the only head-to-head test where Intel wins.

Q: What are the architectural differences between these two processors?

A: The Ryzen 3 5300U uses AMD's Zen 2 architecture on a 7 nm TSMC process with 9,800 million transistors and a 156 mm² die. The Xeon W-2123 uses Intel's Skylake architecture on a 14 nm process with a 484 mm² die. The Ryzen has 4 MB of shared L3 cache, while the Xeon has 8.25 MB shared L3 and 1 MB L2 per core versus 512 KB per core on the AMD.

Q: Which chip supports ECC memory?

A: The Intel Xeon W-2123 supports ECC memory. The AMD Ryzen 3 5300U does not. The Xeon also offers quad-channel DDR4 memory with 85.3 GB/s bandwidth, while the Ryzen is dual-channel with 51.2 GB/s.

Q: What are the market segments and production statuses?

A: The Ryzen 3 5300U is a mobile processor in the 5000 series, released on 2021-01-11 and still active in production. The Xeon W-2123 is a server/workstation chip released on 2017-08-28 and is now end-of-life. The Xeon had a launch MSRP of $294.

Where Each One Wins

The benchmark data splits this comparison into two distinct usage profiles. The AMD Ryzen 3 5300U is the clear winner for lightly threaded workloads and legacy rendering tests. It wins three of the four head-to-head comparisons, including both single-core tests and Cinebench R15 multicore. In Cinebench R15 multicore, the Ryzen scores 906 against the Xeon's 724, a 25.1% advantage. That is a substantial margin in an older rendering benchmark that may favor the AMD's higher per-core efficiency.

The Ryzen's single-core results are particularly striking. Its Cinebench R15 single-core score of 170 beats the Xeon's 102 by 66.7%, and its Cinebench R23 single-core score of 1115 beats 1014 by 10%. These results indicate that for everyday responsiveness, application launches, and lightly threaded productivity tasks, the Ryzen 3 5300U is the stronger choice. The Geekbench scores reinforce this pattern: the Ryzen records 4035 multicore and 1244 single-core, though no direct Xeon Geekbench comparison exists in the head-to-head set.

The Intel Xeon W-2123 takes the opposite side in sustained all-core rendering. Its Cinebench R23 multicore score of 7189 dwarfs the Ryzen's 5341, a 25.7% lead. This is the one test where the Xeon's higher base clock of 3.60 GHz and larger 8.25 MB L3 cache translate into a decisive win. The Xeon also holds advantages in platform-level capabilities: it supports ECC memory, quad-channel DDR4 with 85.3 GB/s bandwidth, and 48 PCIe Gen 3 lanes from the CPU. For workstation builds that need memory reliability, high memory throughput, or many PCIe devices, the Xeon platform is the better foundation even where its raw compute scores lag.

The Ryzen counters with its integrated Radeon Graphics 384SP, which the Xeon lacks entirely. For a mobile or compact system that needs display output without a discrete GPU, the Ryzen has a built-in advantage. The Xeon requires a separate graphics solution. The Ryzen's 15 W TDP also positions it for thin-and-light designs, whereas the Xeon's 120 W TDP demands substantial cooling and power delivery.

Architecture Differences

These two processors represent fundamentally different design philosophies from different eras. The AMD Ryzen 3 5300U is built on Zen 2 architecture, codenamed Lucienne, fabricated on a 7 nm TSMC process. The die contains 9,800 million transistors on a 156 mm² package. The Intel Xeon W-2123 uses Skylake architecture, codenamed Skylake-W, on Intel's 14 nm process with a 484 mm² die. Transistor count for the Xeon is not recorded in the database.

The cache layouts differ significantly. Both chips have 64 KB of L1 cache per core, but the Xeon doubles the L2 allocation to 1 MB per core versus 512 KB on the Ryzen. The L3 situation is reversed in magnitude: the Xeon has 8.25 MB shared L3, while the Ryzen has only 4 MB shared. Despite the Xeon's larger cache pool, the Ryzen's newer architecture and higher single-core efficiency produce better single-threaded benchmark results.

Memory architecture also diverges. The Ryzen 3 5300U supports dual-channel DDR4 with 51.2 GB/s bandwidth and no ECC support. The Xeon W-2123 supports quad-channel DDR4 with 85.3 GB/s bandwidth and includes ECC memory support. The Xeon also provides 48 PCIe Gen 3 lanes from the CPU, compared to 12 lanes on the Ryzen. These platform differences matter for workstation use cases where memory capacity, bandwidth, and error correction are priorities.

The Ryzen integrates a Radeon Graphics 384SP GPU, making it a complete APU. The Xeon has no integrated graphics, which is typical for a server/workstation part. The Ryzen is also a mobile part on AMD Socket FP6, while the Xeon is a desktop/workstation part on Intel Socket 2066. The Ryzen's production status is active; the Xeon is end-of-life.

Specification Differences

The table below highlights only the fields where the two processors differ:

| Specification | AMD Ryzen 3 5300U | Intel Xeon W-2123 |

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

| Series | 5000 series | Not specified |

| Base clock | 2.60 GHz | 3.60 GHz |

| Boost clock | 3.80 GHz | 3.90 GHz |

| TDP | 15 W | 120 W |

| Socket | AMD Socket FP6 | Intel Socket 2066 |

| Architecture | Zen 2 | Skylake |

| Codename | Lucienne | Skylake-W |

| Generation | Ryzen 3 (Zen 2 (Lucienne)) | Xeon W (Skylake-W) |

| Process node | 7 nm | 14 nm |

| Foundry | TSMC | Intel |

| Die size | 156 mm² | 484 mm² |

| L2 cache | 512 KB (per core) | 1 MB (per core) |

| L3 cache | 4 MB (shared) | 8.25 MB (shared) |

| Memory bus | Dual-channel | Quad-channel |

| Memory bandwidth | 51.2 GB/s | 85.3 GB/s |

| ECC memory | No | Yes |

| PCIe | Gen 3, 12 lanes (CPU only) | Gen 3, 48 lanes (CPU only) |

| Integrated graphics | Radeon Graphics 384SP | None |

| Market segment | Mobile | Server/Workstation |

| Production status | Active | End-of-life |

| Release date | 2021-01-11 | 2017-08-28 |

| Part number | 100-000000376 | SR3LJ |

Both chips share 4 cores and 8 threads, DDR4 memory support, 64 KB L1 per core, and locked multipliers.

Head-to-Head Benchmarks

The recorded head-to-head data covers four tests, with the AMD Ryzen 3 5300U winning three and the Intel Xeon W-2123 winning one. The scale of the victories varies dramatically.

The largest win for either side belongs to the Ryzen in Cinebench R15 single-core. The Ryzen scores 170, the Xeon 102, a 66.7% delta. This is an enormous single-thread gap that likely reflects both the Ryzen's Zen 2 efficiency and the Xeon's older Skylake core design. In Cinebench R15 multicore, the Ryzen again wins, scoring 906 versus 724 for a 25.1% lead. Interestingly, this older multicore test favors the AMD chip despite the Xeon's higher clocks, suggesting that the Ryzen's per-core throughput is substantially better in this workload.

In Cinebench R23 single-core, the Ryzen's advantage narrows to 10%, with scores of 1115 and 1014. The newer benchmark still favors AMD, but the margin is far smaller than in R15. This could indicate that the Xeon's Skylake cores scale better under the R23 workload, or that the Ryzen's advantage diminishes as the test becomes more demanding.

The Xeon's lone victory comes in Cinebench R23 multicore, where it posts 7189 against the Ryzen's 5341, a 25.7% margin. This is the most modern and arguably the most representative all-core rendering test in the set. The Xeon's higher base clock (3.60 GHz versus 2.60 GHz) and larger L3 cache appear to matter more here, allowing it to sustain higher throughput across all four cores. The result shows that the Xeon is not simply obsolete: in sustained multithreaded rendering, it remains competitive and even dominant.

The overall benchmark averages place the Ryzen at 2135 and the Xeon at 2079, a difference of about 2.7%. Both chips sit at the 46th percentile among all CPUs in the database. The Ryzen's nearest rivals include the Intel Core i5-9400T (2136, 0% delta) and the AMD Ryzen 5 7520C (2127, 0.4% delta). The Xeon's nearest rivals include the Intel Core i3-9350KF (2082, -0.1% delta) and the Intel Xeon E5-2628 v3 (2076, 0.1% delta). These proximity scores confirm that both processors land in the same performance tier overall, despite their very different architectural approaches and platform characteristics.