AMD Ryzen 5 5500U vs Intel Xeon 6315P Comparison

The AMD Ryzen 5 5500U and Intel Xeon 6315P are an unusual pairing: one is a 15-watt mobile chip with six cores and twelve threads, the other a 55-watt server/workstation processor with just four cores and four threads. Despite their different market segments, their average benchmark scores are nearly identical — 14,589 for the AMD and 14,574 for the Intel, a gap of only 0.1% — placing both at the 69th percentile of all CPUs. The head-to-head data shows 8 wins for the Ryzen and 7 for the Xeon, suggesting a split personality where each processor dominates entirely different workloads.

Where Each One Wins

The Ryzen 5 5500U’s wins cluster around memory-intensive and throughput-heavy tasks. Its largest victory is in Passmark data encryption, where it scores 10,405 versus the Xeon’s 5,470 — a 90.2% advantage. Data compression also heavily favors the AMD part: 174,584 versus 118,313, a 47.6% lead. Integer math shows a 67.3% gap (45,258 vs 27,046), and random string sorting is 31.4% faster (19,035 vs 14,487). These results point to the six physical cores and twelve threads being decisive when work can be parallelized across many threads.

The Xeon 6315P, by contrast, wins where raw clock speed and per-core efficiency matter more. Its Passmark single-thread score of 3,795 crushes the Ryzen’s 2,419, a 36.3% delta. This advantage carries into Cinebench R23 single-core (1,430 vs 1,172, an 18% lead) and multi-core (10,134 vs 7,186, a 29.1% lead). The Xeon also dominates prime number finding (150 vs 26, an 82.7% gap), physics calculations (1,156 vs 533, a 53.9% gap), and floating-point math (33,496 vs 26,029, a 22.3% gap).

The pattern is clear: the Ryzen wins when the workload involves many parallel operations on large data sets, while the Xeon wins when the task is latency-sensitive or relies on a few fast threads. The Cinebench R15 results are an outlier — the Ryzen wins both multi-core (1,247 vs 1,021, 22.1%) and single-core (177 vs 144, 22.9%) there — but R23 flips the script entirely, suggesting the older R15 test may not fully exercise the Xeon’s newer architecture.

Architecture Differences

The two chips come from different manufacturing generations and design philosophies. The Ryzen 5 5500U uses TSMC’s 7 nm process with a die size of 156 mm² and 9,800 million transistors. It is built on Zen 2 architecture, codenamed Lucienne, and is part of AMD’s 5000 series for mobile devices. The Xeon 6315P uses Intel’s 10 nm process with a slightly larger 163 mm² die, based on Raptor Lake architecture (specifically Raptor Lake-R) and belongs to the Xeon 6 generation.

Core configurations differ sharply: the AMD offers 6 cores and 12 threads, while the Intel offers only 4 cores and 4 threads. The Ryzen’s base clock is 2.10 GHz with a 4.00 GHz boost, whereas the Xeon runs at 2.80 GHz base and 4.70 GHz boost. Cache layouts also diverge — the Ryzen has 64 KB L1 and 512 KB L2 per core, plus 8 MB shared L3; the Xeon has 80 KB L1 and 1.25 MB L2 per core, plus 12 MB shared L3. The larger per-core L2 cache on the Xeon likely contributes to its single-thread strength.

Memory support is a key differentiator. The Ryzen supports only DDR4 with dual-channel access and a bandwidth of 51.2 GB/s, and lacks ECC. The Xeon supports both DDR4 and DDR5, also dual-channel, and includes ECC memory support — a critical feature for server workloads. PCIe capabilities also differ: the Ryzen offers Gen 3 with 12 lanes, while the Xeon offers Gen 5 with 16 lanes. The Ryzen integrates Radeon Graphics with 448 SP; the Xeon has no integrated graphics. The Xeon uses Intel Socket 1700 and the Ryzen uses AMD Socket FP6, and neither has an unlocked multiplier.

The Verdict

The data suggests these processors serve completely different purposes, despite their similar average scores. The Ryzen 5 5500U is the better choice for multi-threaded consumer workloads like data compression, encryption, and integer-heavy tasks — its 90.2% lead in encryption and 67.3% lead in integer math are not marginal. It also wins the overall multithread Passmark score (12,831 vs 11,923, a 7.6% edge).

The Xeon 6315P, however, is the superior processor for single-threaded and latency-critical applications. Its 36.3% single-thread lead, 82.7% prime-number advantage, and 53.9% physics score advantage make it the clear pick for workloads that cannot utilize many threads. The R23 multi-core result — a 29.1% win for the Xeon — is particularly notable, as it suggests that in modern, well-optimized rendering workloads, the Xeon’s four fast cores outperform the Ryzen’s six slower ones.

For a mobile user running everyday applications, the Ryzen’s 15-watt TDP and integrated graphics make it the practical choice, but the benchmark data shows it also handles parallel data tasks better. For a server or workstation where ECC memory and PCIe Gen 5 are required, the Xeon is the only option — and its clock speed advantage delivers measurable performance in single-thread scenarios. The tie in average score (0.1% apart) is misleading; the right choice depends entirely on whether the workload is parallel-friendly or single-thread-bound.

FAQ

Q: Which processor has better single-thread performance?

A: The Intel Xeon 6315P wins decisively, with a Passmark single-thread score of 3,795 versus the AMD Ryzen 5 5500U’s 2,419 — a 36.3% difference. The Xeon also leads in Cinebench R23 single-core by 18% (1,430 vs 1,172).

Q: Which processor is better for multi-threaded workloads?

A: It depends on the test. The Ryzen wins Passmark multithread (12,831 vs 11,923, 7.6%) and Cinebench R15 multi-core (1,247 vs 1,021, 22.1%), but the Xeon wins Cinebench R23 multi-core by 29.1% (10,134 vs 7,186).

Q: Do these processors support ECC memory?

A: Yes for the Intel Xeon 6315P, which supports ECC memory. The AMD Ryzen 5 5500U does not support ECC memory.

Q: What are the core and thread counts?

A: The AMD Ryzen 5 5500U has 6 cores and 12 threads. The Intel Xeon 6315P has 4 cores and 4 threads.

Q: Which processor has the higher clock speed?

A: The Intel Xeon 6315P has both a higher base clock (2.80 GHz vs 2.10 GHz) and a higher boost clock (4.70 GHz vs 4.00 GHz) than the AMD Ryzen 5 5500U.

Q: What is the launch MSRP of the Intel Xeon 6315P?

A: The launch MSRP is $213. The AMD Ryzen 5 5500U has no listed launch MSRP in the data.

Head-to-Head Benchmarks

The most dramatic win for the AMD Ryzen 5 5500U is in Passmark data encryption, where it scores 10,405 against the Xeon’s 5,470 — a 90.2% advantage. This is the largest delta in the entire comparison and suggests the Ryzen’s extra threads are exceptionally effective at cryptographic operations. Data compression follows a similar pattern: the Ryzen’s 174,584 score beats the Xeon’s 118,313 by 47.6%. Integer math also favors the AMD chip heavily, with 45,258 versus 27,046 (a 67.3% lead). Random string sorting rounds out the AMD’s major wins at 31.4% (19,035 vs 14,487).

The Intel Xeon 6315P’s biggest victory is in Passmark find prime numbers, where it scores 150 versus the Ryzen’s 26 — an 82.7% gap. This workload is highly sequential and latency-bound, playing directly to the Xeon’s high boost clock. Single-thread performance shows a 36.3% lead for the Xeon (3,795 vs 2,419), and physics calculations favor it by 53.9% (1,156 vs 533). Floating-point math goes to the Xeon by 22.3% (33,496 vs 26,029), and Cinebench R23 multi-core shows a 29.1% advantage (10,134 vs 7,186).

The R15 results are worth noting for their contradiction. In Cinebench R15 multi-core, the Ryzen wins by 22.1% (1,247 vs 1,021), and in single-core it wins by 22.9% (177 vs 144). Yet in R23, the Xeon wins both tests. This discrepancy suggests the Xeon’s architecture benefits more from newer benchmark versions, possibly due to better instruction scheduling or the larger 12 MB L3 cache. The extended instructions test is nearly a tie — the Ryzen leads by only 2.8% (10,838 vs 10,539) — and the overall multithread score is a modest 7.6% win for the Ryzen (12,831 vs 11,923).

Specification Differences

The two processors differ in nearly every specification category. The AMD Ryzen 5 5500U has 6 cores and 12 threads; the Intel Xeon 6315P has 4 cores and 4 threads. Base clocks are 2.10 GHz for AMD and 2.80 GHz for Intel; boost clocks are 4.00 GHz and 4.70 GHz respectively. The TDP is 15 watts for the Ryzen versus 55 watts for the Xeon.

The Ryzen uses AMD Socket FP6 and the Xeon uses Intel Socket 1700. The process node is 7 nm for AMD (TSMC) and 10 nm for Intel (Intel foundry). The die size is 156 mm² for the Ryzen and 163 mm² for the Xeon; the Ryzen lists 9,800 million transistors while the Xeon has no transistor count listed. Cache structures differ: L1 is 64 KB per core for AMD versus 80 KB per core for Intel; L2 is 512 KB per core for AMD versus 1.25 MB per core for Intel; L3 is 8 MB shared for AMD versus 12 MB shared for Intel.

Memory support diverges: the Ryzen supports only DDR4, while the Xeon supports both DDR4 and DDR5. The Ryzen has a listed memory bandwidth of 51.2 GB/s; the Xeon has no bandwidth figure. ECC memory is absent on the Ryzen and present on the Xeon. PCIe generations differ — Gen 3 with 12 lanes for AMD versus Gen 5 with 16 lanes for Intel. The Ryzen includes integrated Radeon Graphics with 448 SP; the Xeon has no integrated graphics. Market segments are Mobile for AMD and Server/Workstation for Intel, with the Ryzen released on 2021-01-11 and the Xeon on 2025-02-23. Neither processor has an unlocked multiplier.