Intel Core Ultra 7 165H vs Intel Xeon 6349P Comparison

Where Each One Wins

The benchmark split between the Intel Xeon 6349P and the Intel Core Ultra 7 165H is almost even, with the mobile chip taking 10 wins and the server part taking 7. That near-parity hides a clear thematic separation. The Xeon 6349P dominates in single-threaded and older Cinebench R23 workloads, while the Core Ultra 7 165H wins in most PassMark math, physics, and sorting tests.

The Xeon 6349P is the stronger choice for lightly threaded, latency-sensitive tasks. Its single-core wins are decisive: 21% ahead in Cinebench R15 single-core, 76% ahead in R23 single-core, and 29% ahead in PassMark single-thread. It also handles extended instruction sets with an 18.1% edge in PassMark extended instructions. For workloads that rely on one or two threads, the Xeon's higher boost clock of 5.70 GHz versus 5.00 GHz shows in the data.

The Core Ultra 7 165H, by contrast, wins the majority of the multi-threaded and throughput-oriented tests. It takes Cinebench R15 multicore by 16.4%, Cinebench R20 multicore by a slim 0.3%, PassMark integer math by 7.8%, floating point by 6.8%, and physics by 22%. It also wins data encryption by 5.4%, prime number finding by 23.7%, random string sorting by 7.2%, and PassMark multithread by 0.5%. The pattern suggests the Ultra 7's 16 cores and 22 threads, compared to the Xeon's 6 cores and 12 threads, provide more aggregate throughput in parallel workloads that do not scale perfectly with clock speed.

The two processors sit at the same 84th percentile versus all CPUs, and their average benchmark scores are close: 34890 for the Xeon versus 34083 for the Ultra 7. The Xeon's nearest rival, the AMD Ryzen 5 150, scores 34881 with a 0% delta, while the Ultra 7's nearest rival, the Intel Core Ultra 5 338H, scores 33989 with a 0.3% delta. These figures confirm that the two chips are in the same performance tier overall, but they achieve that tier through different means.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Xeon 6349P wins every single-core benchmark in the head-to-head set. It leads by 21% in Cinebench R15 single-core, 76% in R23 single-core, and 29% in PassMark single-thread. Its boost clock is 5.70 GHz versus 5.00 GHz for the Core Ultra 7 165H.

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

A: The Intel Core Ultra 7 165H wins 10 of 17 head-to-head benchmarks, including Cinebench R15 multicore (2641 vs 2209), PassMark integer math (89415 vs 82443), and PassMark physics (1806 vs 1408). However, the Xeon 6349P wins Cinebench R23 multicore by a large 50.7% margin, so the answer depends on the specific test.

Q: What is the difference in core and thread counts?

A: The Core Ultra 7 165H has 16 cores and 22 threads. The Xeon 6349P has 6 cores and 12 threads. The Ultra 7 also has a larger shared L3 cache at 24 MB versus 18 MB, and larger per-core L1 and L2 caches.

Q: Do both processors support ECC memory?

A: No. The Xeon 6349P supports ECC memory, while the Core Ultra 7 165H does not. This is a meaningful distinction for server or workstation reliability use cases.

Q: What are the power consumption differences?

A: The Xeon 6349P has a TDP of 95 watts, while the Core Ultra 7 165H has a TDP of 28 watts. The Ultra 7 is a mobile processor with a much lower power envelope.

Q: Which processor has integrated graphics?

A: The Core Ultra 7 165H includes Arc Xe-LPG 128EU integrated graphics. The Xeon 6349P has no integrated graphics, listed as N/A.

Head-to-Head Benchmarks

The most striking result is Cinebench R23 multicore. The Xeon 6349P scores 21924 against the Ultra 7's 14551, a 50.7% advantage. This is the single largest delta in either direction. The Xeon also wins R23 single-core with 3095 versus 1759, a 76% gap. These two Cinebench R23 results show the Xeon's architecture is far more efficient per thread in this rendering workload.

The Ultra 7 counters in Cinebench R15 multicore with 2641 versus 2209, a 16.4% win. In R20 multicore, the gap nearly disappears: 9233 versus 9208, a 0.3% difference. R20 single-core is similarly close, with the Ultra 7 at 1303 versus the Xeon's 1299, again a 0.3% margin. These near-ties in R20 suggest that the two chips are evenly matched in that specific workload.

PassMark results show a clear split. The Xeon wins data compression by 5.4% (306774 vs 291161), extended instructions by 18.1% (20426 vs 17299), and single-thread by 29% (4528 vs 3509). The Ultra 7 wins data encryption by 5.4% (17169 vs 16239), prime numbers by 23.7% (118 vs 90), floating point by 6.8% (66273 vs 61796), integer math by 7.8% (89415 vs 82443), physics by 22% (1806 vs 1408), and random string sorting by 7.2% (33473 vs 31056). PassMark multithread is nearly identical: 25933 versus 25793, a 0.5% edge for the Ultra 7.

The average benchmark scores reinforce the overall parity. The Xeon's average is 34890, while the Ultra 7's is 34083. The Xeon's nearest rival, the AMD Ryzen 5 150, scores 34881 with a 0% delta, and the Ultra 7's nearest rival, the Intel Core Ultra 5 338H, scores 33989 with a 0.3% delta. Neither chip has a clear aggregate advantage.

Specification Differences

The two processors diverge on nearly every core specification. The Xeon 6349P has 6 cores and 12 threads, while the Ultra 7 165H has 16 cores and 22 threads. Base clocks are close, with the Ultra 7 at 3.80 GHz and the Xeon at 3.60 GHz, but boost clocks favor the Xeon at 5.70 GHz versus 5.00 GHz.

The Xeon uses Intel Socket 1700, while the Ultra 7 uses Intel BGA 2049. The Xeon is a server/workstation part with a 95 watt TDP and ECC memory support. The Ultra 7 is a mobile part with a 28 watt TDP and no ECC support. The Xeon supports both DDR4 and DDR5 memory, while the Ultra 7 supports DDR5 with a note that it depends on the motherboard. Both use dual-channel memory buses, but the Ultra 7 has a recorded memory bandwidth of 89.6 GB/s, a figure not provided for the Xeon.

PCIe support differs: the Xeon offers Gen 5 with 16 lanes (CPU only), while the Ultra 7 offers Gen 5 with 8 lanes (CPU only). The Ultra 7 includes Arc Xe-LPG 128EU integrated graphics, while the Xeon has none. The launch MSRP for the Xeon is $509, and for the Ultra 7 it is $460.

Architecture Differences

The Xeon 6349P is built on Raptor Lake architecture, specifically Raptor Lake-R, part of the Xeon 6 generation. It uses a 10 nm process node from Intel with a die size of 163 mm². Its cache layout includes 80 KB of L1 per core, 1.25 MB of L2 per core, and 18 MB of shared L3.

The Core Ultra 7 165H uses Meteor Lake architecture, part of the Core Ultra Series 1. It is built on a 7 nm process node from Intel, with no die size recorded. Its cache is larger across the board: 112 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3.

The production status for both is Active, but the release dates differ. The Ultra 7 was released on 2023-12-13, while the Xeon was released on 2025-02-23. The Xeon's part number is SRPLT, and the Ultra 7's is SRMZ3. Neither processor has an unlocked multiplier.

The architectural differences explain the benchmark pattern. The Xeon's Raptor Lake design with a high boost clock and smaller core count is optimized for single-thread speed, which shows in its 76% R23 single-core win. The Meteor Lake design in the Ultra 7, with more cores and a lower power envelope, spreads work across more threads, which shows in its 16-core advantage and wins in physics and integer math.

The Verdict

The data points to two distinct audiences. The Intel Xeon 6349P is the pick for single-threaded performance and legacy rendering workloads. Its 76% win in Cinebench R23 single-core and 29% win in PassMark single-thread are the largest single-core margins in the comparison. It also leads in extended instructions by 18.1%, which matters for SIMD-heavy code. Its 50.7% win in R23 multicore, despite having only 6 cores, shows that some multi-threaded workloads respond more to per-core efficiency than to core count. The Xeon also offers ECC memory support, a feature absent on the Ultra 7, and uses a standard socketed platform (Intel Socket 1700) rather than a BGA package.

The Intel Core Ultra 7 165H is the choice for broad parallel throughput and mobile deployment. It wins 10 of 17 benchmarks, including PassMark integer math, floating point, physics, random string sorting, and data encryption. Its 16 cores and 22 threads give it a clear advantage in workloads that scale with thread count, and its 28 watt TDP makes it suitable for systems where power is a constraint. It also includes integrated Arc Xe-LPG 128EU graphics, which the Xeon lacks entirely.

For a workstation that prioritizes fast single-thread execution, older rendering tests, and ECC reliability, the Xeon 6349P is the data-backed option. For a laptop or compact system that needs balanced multi-thread performance, integrated graphics, and lower power draw, the Core Ultra 7 165H is the stronger fit. The two chips are close in average score, with a 2.3% gap in favor of the Xeon, but the benchmark distribution makes the choice workload-dependent rather than a matter of overall superiority.