Intel Core Ultra X7 358H vs Intel Xeon 6369P Comparison

The Intel Core Ultra X7 358H and the Intel Xeon 6369P represent two distinctly different design philosophies from the same manufacturer, targeting opposite ends of the computing spectrum. The Core Ultra X7 358H is a mobile-focused processor built for efficiency on a modern 3 nm node, while the Xeon 6369P is a server and workstation part on a mature 10 nm process with a higher thermal envelope. The benchmark data reveals a complex and often counterintuitive performance relationship, where neither part dominates the other outright. Across the 17 recorded head-to-head tests, the Core Ultra X7 358H claims 10 victories while the Xeon 6369P secures 7, but the magnitude of those wins varies dramatically depending on the workload type.

Head-to-Head Benchmarks

The most striking single-score advantage belongs to the Core Ultra X7 358H in the PassMark find prime numbers test, where it scores 337 against the Xeon’s 141, a 139% advantage. This test is heavily dependent on integer throughput and cache efficiency, and the mobile chip’s larger per-core L1 cache appears to provide a decisive edge. Similarly, in floating-point math, the Core Ultra X7 358H posts 103842 versus 74151, a 40% lead, suggesting its execution units are better optimized for this workload class. Data encryption also favors the mobile part heavily, with a score of 26046 against 17922, a 45.3% difference, which may reflect newer instruction set extensions or more efficient cryptographic acceleration.

The physics simulation test shows a 50.4% win for the Core Ultra X7 358H, scoring 3021 versus 2008. This result is notable because it indicates that despite having the same thread count as the Xeon, the mobile chip’s architecture handles the physics engine’s specific demands more effectively. Extended instructions also go to the Core Ultra X7 358H, with 27274 versus 22807, a 19.6% margin, reinforcing the pattern that complex instruction sequences execute faster on the newer core design.

However, the Xeon 6369P strikes back decisively in several key areas. The most significant is Cinebench R23 multi-core, where the Xeon scores 25774 against the Core Ultra’s 18747, a 27.3% advantage. This is a substantial reversal, as Cinebench R23 is a widely respected render workload that scales well with sustained multi-threaded performance. The Xeon’s higher power envelope of 95 watts compared to 25 watts likely allows it to maintain higher clocks across all cores for longer durations. Single-core performance in Cinebench R23 also favors the Xeon heavily, with 3638 versus 2080, a 42.8% lead. This is the largest margin in the entire dataset and highlights the Xeon’s superior single-thread clock speed of 5.70 GHz against the Core Ultra’s 4.80 GHz.

Integer math is another Xeon stronghold, scoring 101013 versus 83147, a 17.7% advantage. This is interesting because it contrasts sharply with the Core Ultra’s win in prime numbers, suggesting the Xeon’s integer unit handles certain workloads better while the mobile chip excels at others. Data compression slightly favors the Xeon, 346632 versus 332508, a 4.1% edge, which is a modest but consistent advantage in a throughput-oriented task. Single-thread PassMark scores are also higher on the Xeon, 4305 versus 4124, a 4.2% difference, aligning with its higher boost clock.

The mixed results in older Cinebench versions add nuance. In Cinebench R15 multi-core, the Core Ultra wins 3027 versus 2598, a 16.5% margin, while in R20 multi-core it wins 12011 versus 10825, an 11% edge. Yet in R23 multi-core, the Xeon flips the result entirely. This suggests that the newer R23 workload stresses sustained performance and thermal management differently, where the Xeon’s higher TDP becomes a decisive factor. Single-core results are similarly inconsistent: the Xeon wins R15 single-core by 17.6% (366 versus 301.5), but the Core Ultra wins R20 single-core by 11% (1695 versus 1527). Only in R23 does the Xeon reassert dominance with its 42.8% margin. These inconsistencies indicate that benchmark versions place different demands on memory latency, instruction scheduling, and clock boosting behavior.

Architecture Differences

The two processors are built on fundamentally different platforms. The Core Ultra X7 358H uses the Panther Lake architecture on a 3 nm process node, fabricated by Intel, while the Xeon 6369P is based on Raptor Lake-R on a 10 nm process. The die size for the Xeon is recorded as 257 mm², while no die size is listed for the Core Ultra. This process node difference is likely the primary driver behind the Core Ultra’s lower TDP of 25 watts against the Xeon’s 95 watts, a 70-watt gap that becomes critical in sustained workloads.

Core counts differ significantly. The Core Ultra X7 358H has 16 cores and 16 threads, meaning it lacks hyper-threading, while the Xeon 6369P has 8 cores but 16 threads, indicating hyper-threading support. Despite having half the physical cores, the Xeon matches the thread count, which explains why multi-threaded scores are often competitive. The Core Ultra compensates with a higher core count and a per-core L1 cache of 192 KB, compared to the Xeon’s 80 KB per core. L2 cache also favors the mobile chip at 3 MB per core versus 2 MB per core. However, the Xeon has a larger shared L3 cache at 24 MB compared to 18 MB, which may benefit certain workloads that require a large working set.

Memory support diverges as well. The Core Ultra uses LPDDR5X memory with a dual-channel bus and a recorded bandwidth of 153.6 GB/s. The Xeon supports both DDR4 and DDR5, also dual-channel, but no bandwidth figure is listed in the database. ECC memory is supported on the Xeon but not on the Core Ultra, a critical feature for server and workstation reliability. PCIe lanes also differ sharply: the Core Ultra offers Gen 5 with 4 lanes (CPU only), while the Xeon provides Gen 5 with 16 lanes, a fourfold increase for expansion and data-intensive peripherals.

Integrated graphics are present on the Core Ultra in the form of Arc B390, while the Xeon has no integrated graphics at all. This makes the Core Ultra a more self-contained solution for mobile devices where discrete GPUs are optional. The Xeon’s lack of integrated graphics is typical for server platforms that assume a discrete GPU or rely on remote management. The Core Ultra’s socket is Intel BGA 2540, soldered to the motherboard, while the Xeon uses Intel Socket 1700, a LGA design that allows for replaceability. The Xeon’s release date is earlier, 2025-02-23, compared to the Core Ultra’s 2025-01-04, though both are active products.

FAQ

Q: Which processor has a higher single-threaded performance in the most recent Cinebench version?

A: The Intel Xeon 6369P wins Cinebench R23 single-core with a score of 3638 against the Core Ultra X7 358H’s 2080, a 42.8% advantage. This aligns with the Xeon’s higher boost clock of 5.70 GHz versus 4.80 GHz.

Q: Does the Core Ultra X7 358H ever beat the Xeon in multi-threaded tests?

A: Yes, in Cinebench R15 multi-core, the Core Ultra scores 3027 versus 2598, a 16.5% win, and in R20 multi-core it scores 12011 versus 10825, an 11% win. However, in R23 multi-core, the Xeon takes a 27.3% lead with 25774 versus 18747.

Q: What is the largest performance delta between the two processors?

A: The largest delta is in Cinebench R23 single-core, where the Xeon leads by 42.8%. The second largest is in PassMark find prime numbers, where the Core Ultra leads by 139%.

Q: Which processor supports ECC memory?

A: The Intel Xeon 6369P supports ECC memory, while the Intel Core Ultra X7 358H does not. This is a significant feature for error-sensitive server and workstation workloads.

Q: How do the thread counts compare?

A: Both processors have 16 threads. The Core Ultra X7 358H achieves this with 16 physical cores and no hyper-threading, while the Xeon 6369P uses 8 physical cores with hyper-threading to reach 16 threads.

Q: What are the TDP differences and how might they affect performance?

A: The Core Ultra X7 358H has a TDP of 25 watts, while the Xeon 6369P has a TDP of 95 watts. The Xeon’s higher power budget allows for higher sustained clocks, which likely explains its wins in R23 multi-core and integer math, while the Core Ultra’s efficiency enables its wins in floating-point and encryption tests.

The Verdict

The data paints a clear picture: the Intel Core Ultra X7 358H is the superior choice for workloads that emphasize floating-point math, encryption, physics simulation, and prime number calculations. Its wins in PassMark floating-point math (40%), data encryption (45.3%), physics (50.4%), and prime numbers (139%) are substantial and consistent. For tasks like scientific computing, financial modeling, or any application that relies heavily on FPU throughput, the Core Ultra X7 358H delivers significantly better performance per test. Its lower TDP of 25 watts also makes it suitable for thermally constrained environments, and its integrated Arc B390 graphics provide capabilities the Xeon lacks entirely.

The Intel Xeon 6369P is the better option for workloads that favor raw single-thread clock speed and sustained multi-core rendering. Its Cinebench R23 single-core lead of 42.8% is enormous, and its multi-core advantage in the same test (27.3%) indicates it can maintain high performance under prolonged load. Integer math (17.7% lead) and data compression (4.1% lead) also favor the Xeon, making it a strong candidate for database operations, compilation tasks, and other integer-heavy code. The Xeon’s ECC memory support and 16 PCIe Gen 5 lanes are critical for server environments where data integrity and expandability are paramount. Its larger 24 MB L3 cache may also improve performance in workloads with large working sets.

Neither processor wins outright. The Core Ultra X7 358H has more wins (10 versus 7), but the Xeon’s victories are often larger in magnitude, particularly in the R23 tests. The decision should be guided by the specific workload profile. For mobile or compact systems with diverse computational demands, the Core Ultra X7 358H offers a balanced, efficient package with strong performance in floating-point and encryption. For dedicated server or workstation deployments where single-thread speed, ECC memory, and PCIe expansion are non-negotiable, the Xeon 6369P is the data-backed choice. The Xeon’s higher TDP is not a drawback in a server chassis, where cooling is typically ample.

Specification Differences

The two processors differ in several key specifications. The Core Ultra X7 358H has 16 cores and 16 threads, while the Xeon 6369P has 8 cores and 16 threads. Base clocks are 1.90 GHz for the Core Ultra and 3.30 GHz for the Xeon. Boost clocks are 4.80 GHz and 5.70 GHz, respectively. TDP is 25 watts for the Core Ultra and 95 watts for the Xeon. The socket types are Intel BGA 2540 for the mobile chip and Intel Socket 1700 for the server chip. The process node is 3 nm for the Core Ultra and 10 nm for the Xeon. The Core Ultra has a codename of Panther Lake, while the Xeon uses Raptor Lake-R with an architecture of Raptor Lake. Die size is listed as 257 mm² for the Xeon, with no figure for the Core Ultra.

Cache hierarchies differ: L1 cache is 192 KB per core for the Core Ultra versus 80 KB per core for the Xeon. L2 cache is 3 MB per core versus 2 MB per core. L3 cache is 18 MB shared for the Core Ultra versus 24 MB shared for the Xeon. Memory support is LPDDR5X for the Core Ultra and DDR4/DDR5 for the Xeon. Memory bandwidth is 153.6 GB/s for the Core Ultra, while no figure is recorded for the Xeon. ECC memory is supported only on the Xeon. PCIe is Gen 5 with 4 lanes for the Core Ultra and Gen 5 with 16 lanes for the Xeon. Integrated graphics are Arc B390 for the Core Ultra and N/A for the Xeon. Market segments are Mobile and Server/Workstation, respectively. The Xeon has a launch MSRP of $606, while the Core Ultra has no recorded launch MSRP.