AMD Ryzen 7 5800X vs Intel Xeon Phi 7210 Comparison

The Intel Xeon Phi 7210 and AMD Ryzen 7 5800X are separated by nearly half a decade of silicon design, yet their average benchmark scores sit almost exactly level. The data shows a 15–0 sweep in head-to-head tests for the Ryzen, but the Xeon Phi’s massive thread count keeps its overall average within 0.4% of its rival. This is a tale of two extremes: one chip built for raw parallel throughput, the other for balanced, high-frequency execution.

Head-to-Head Benchmarks

The AMD Ryzen 7 5800X dominates every single benchmark in the head-to-head comparison, with deltas ranging from a modest 3.6% to a crushing 91.9%. The largest gap appears in PassMark’s find prime numbers test, where the Ryzen scores 124 against the Xeon Phi’s 10, a 91.9% deficit for Intel. This workload is highly latency-sensitive and poorly suited to the Xeon Phi’s architecture, which relies on massive thread parallelism rather than fast individual cores.

Single-thread performance tells a similarly stark story. In Cinebench R15 single-core, the Ryzen scores 265.5 versus 88 for the Xeon Phi, a 66.9% difference. The gap narrows in Cinebench R23 single-core, but remains decisive at 44.4%, with scores of 1574.5 and 876 respectively. PassMark’s single-thread test shows the Ryzen at 3445 against 460, an 86.6% margin. These numbers reflect the fundamental clock and IPC advantage of the Zen 3 architecture, which operates at 3.80 GHz base and 4.70 GHz boost, compared to the Xeon Phi’s 1.30 GHz base and 1.50 GHz boost.

Multi-threaded results are closer but still favor AMD. In Cinebench R15 multicore, the Ryzen scores 2608.5 versus 625, a 76% delta. Cinebench R23 multicore shows 15476 against 6210, a 59.9% gap. PassMark multithread results are similarly lopsided at 27732 versus 7306, a 73.7% difference. Even in integer math, where the Xeon Phi’s 64 cores might be expected to help, the Ryzen wins 94969 to 84874, a 10.6% margin. Floating point math shows a 44.2% gap, with the Ryzen at 52639 versus 29356.

The closest contest comes in data compression, where the Xeon Phi scores 332960 against the Ryzen’s 345414, a mere 3.6% difference. This workload appears to scale reasonably well with the Xeon Phi’s 256 threads, though it still cannot overcome the Ryzen’s per-core efficiency. Data encryption shows a massive 83.7% gap, with the Ryzen at 21191 versus 3455. Extended instructions favor AMD by 22.1%, and random string sorting shows a 74.7% delta in favor of the Ryzen.

The Verdict

The data is unambiguous: the AMD Ryzen 7 5800X is the superior processor for virtually every measured workload. Its wins span single-thread, multi-thread, encryption, math, and sorting tests. The Xeon Phi 7210 wins zero head-to-head benchmarks. For any user prioritizing application performance across general-purpose computing, the Ryzen is the clear choice. Its 15–0 record in direct comparison, combined with its 81st percentile ranking among all CPUs, makes it a versatile and potent desktop part.

However, the Xeon Phi 7210 is not without merit in its intended context. Its 64 cores and 256 threads represent a different philosophy aimed at highly parallel, server-class workloads. Its average benchmark score of 29245 sits just 0.4% above the Ryzen’s 29123, indicating that in aggregate, across a broad suite of tests, the two chips are nearly equivalent. The Xeon Phi’s 81st percentile ranking matches the Ryzen’s, suggesting similar overall standing in the broader CPU landscape. For workloads that scale perfectly across hundreds of threads, the Xeon Phi may offer competitive aggregate throughput, though the specific benchmarks in this comparison do not demonstrate that advantage. The Ryzen 7 5800X is the recommended pick for desktop users, while the Xeon Phi 7210 remains a niche product for specialized high-core-count environments.

Architecture Differences

The two processors come from fundamentally different design lineages. The Intel Xeon Phi 7210 uses the Knights Landing architecture, built on Intel’s 14 nm process with 8,000 million transistors. It features 64 cores and 256 threads, with a base clock of 1.30 GHz and a boost clock of 1.50 GHz. Its cache hierarchy consists of 32 KB L1 and 512 KB L2 per core, with no L3 cache listed. It supports DDR4 memory with ECC, targets the Server/Workstation market segment, and uses the Intel Socket 3647. The chip is not multiplier unlocked and was released in June 2016.

The AMD Ryzen 7 5800X employs the Zen 3 architecture, codenamed Vermeer, manufactured on TSMC’s 7 nm process with 4,150 million transistors and a 74 mm² die size. It has 8 cores and 16 threads, operating at 3.80 GHz base and 4.70 GHz boost clocks. Its cache includes 64 KB L1 and 512 KB L2 per core, plus a 32 MB L3 cache. It supports dual-channel DDR4 with 51.2 GB/s memory bandwidth and ECC capability. The chip uses AMD Socket AM4, features PCIe Gen 4 with 20 lanes (CPU only), and has an unlocked multiplier. It targets the Desktop segment, remains in active production, and was released in November 2020 with a launch MSRP of $449.

The process node difference is significant: 14 nm versus 7 nm, which directly impacts power efficiency and clock speeds. The Xeon Phi’s 215 W TDP is more than double the Ryzen’s 105 W TDP. The Ryzen’s smaller, more modern process allows for much higher clocks despite fewer cores. The Xeon Phi’s lack of L3 cache forces reliance on per-core L2, which may explain its poor performance in latency-sensitive tests. The Ryzen’s 32 MB L3 cache provides a substantial shared pool for its 8 cores.

FAQ

Q: Which processor has more cores and threads?

A: The Intel Xeon Phi 7210 has 64 cores and 256 threads. The AMD Ryzen 7 5800X has 8 cores and 16 threads.

Q: What is the average benchmark score for each processor?

A: The Intel Xeon Phi 7210 has an average benchmark score of 29245. The AMD Ryzen 7 5800X has an average benchmark score of 29123.

Q: How do the two processors compare in single-thread performance?

A: The AMD Ryzen 7 5800X is significantly faster. In Cinebench R23 single-core, it scores 1574.5 versus 876 for the Xeon Phi, a 44.4% advantage. PassMark single-thread shows a larger gap at 3445 versus 460, an 86.6% difference.

Q: What are the TDP ratings for each chip?

A: The Intel Xeon Phi 7210 has a TDP of 215 W. The AMD Ryzen 7 5800X has a TDP of 105 W.

Q: Which processor supports ECC memory?

A: Both processors support ECC memory. The Xeon Phi 7210 supports DDR4 with ECC, and the Ryzen 7 5800X also lists ECC memory support.

Q: What is the release date for each processor?

A: The Intel Xeon Phi 7210 was released on June 19, 2016. The AMD Ryzen 7 5800X was released on November 4, 2020.

Where Each One Wins

The AMD Ryzen 7 5800X wins across every benchmark category in the head-to-head data. Its most dominant victories come in prime number finding (91.9% delta), data encryption (83.7%), and single-thread performance (86.6%). These results indicate that the Ryzen excels in workloads requiring high clock speeds, strong single-core efficiency, and fast cryptographic operations. Its 32 MB L3 cache and 7 nm process give it a decisive edge in latency-sensitive tasks. The Ryzen also wins in physics calculations (85.5% delta), multithreaded workloads (73.7%), and random string sorting (74.7%), showing broad applicability across general computing.

The Intel Xeon Phi 7210 has no benchmark wins in this comparison, but its closest performance comes in data compression, trailing by only 3.6%. This suggests that highly parallel, throughput-oriented tasks are where the Xeon Phi is least disadvantaged. Its 256 threads could theoretically excel in workloads that scale linearly with core count, though the tested benchmarks do not reflect such an advantage. The Xeon Phi’s 215 W TDP and server/workstation market segment indicate it is designed for rack-mounted, massively parallel compute environments rather than desktop use. Its equal percentile ranking (81st) and near-identical average score suggest that in aggregate, it remains competitive in a narrow band of specialized applications, but the Ryzen 7 5800X is the better choice for any user running the workloads represented in this benchmark suite.