Intel Core Ultra 7 270HX Plus vs Intel Xeon Gold 6338T Comparison

The Intel Core Ultra 7 270HX Plus and Intel Xeon Gold 6338T represent two fundamentally different approaches to high-core-count computing: a modern mobile flagship versus a server workhorse. The benchmark data shows a clear split, with the Core Ultra 7 dominating in most tests while the Xeon Gold 6338T takes specific workloads. The Core Ultra 7 270HX Plus wins 13 of the 17 head-to-head comparisons, while the Xeon Gold 6338T takes four.

Head-to-Head Benchmarks

The most striking result is in Cinebench, where the Core Ultra 7 270HX Plus wins every single test by a consistent margin. In Cinebench R23 multicore, the Core Ultra 7 scores 41913 against the Xeon Gold's 30430, a 37.7% advantage. The same delta appears across R15 and R20 multicore tests, with the Core Ultra 7 posting 4224 and 17603 respectively versus the Xeon's 3067 and 12780. That consistency suggests an architectural efficiency advantage rather than a single-test fluke.

Single-core performance is where the gap becomes enormous. The Core Ultra 7 270HX Plus scores 5917 in Cinebench R23 single-core, beating the Xeon Gold 6338T's 4296 by 37.7%. In PassMark single-thread, the margin nearly doubles: 4764 versus 2348, a 102.9% lead. The Xeon Gold's 3.40 GHz boost clock simply cannot compete with the Core Ultra 7's 5.30 GHz boost.

The Xeon Gold 6338T fights back in four specific PassMark tests. Data compression goes to the Xeon with 557816 versus 493179, an 11.6% win. Integer math shows a 19.6% advantage for the Xeon (152275 vs 122449). Extended instructions favor the Xeon by 9.3% (43292 vs 39283), and random string sorting goes to the Xeon by 9.7% (66495 vs 60020). These are all throughput-oriented workloads where the Xeon's 24 cores and 48 threads provide raw parallel capacity.

However, the Core Ultra 7's wins in other PassMark tests are often massive. Floating point math goes to the Core Ultra 7 by 80.6% (163567 vs 90584). Physics simulation shows a 231.3% advantage (3843 vs 1160). Prime number finding is a 308.5% blowout (482 vs 118). Data encryption favors the Core Ultra 7 by 53.2% (37813 vs 24677). The overall PassMark multithread score goes to the Core Ultra 7 by 34.8% (48270 vs 35801).

The Verdict

The data points to a clear overall winner: the Intel Core Ultra 7 270HX Plus. Its average benchmark score of 61834 places it in the 93rd percentile of all CPUs, while the Xeon Gold 6338T scores 60572 and sits in the 92nd percentile. The Core Ultra 7's nearest rivals are the Intel Core i9-13900KF (61841, 0% delta) and Intel Core i9-13900K (61766, 0.1% delta), putting it in flagship desktop territory. The Xeon Gold 6338T's nearest rivals include the Intel Core i9-13900 (60676, -0.2% delta) and AMD Ryzen 7 8745HX (60104, 0.8% delta).

If you need maximum single-thread performance, the Core Ultra 7 270HX Plus is the only choice between these two. Its 102.9% lead in PassMark single-thread and 37.7% lead in every Cinebench single-core test make it categorically faster for lightly threaded workloads. The Xeon Gold 6338T simply cannot match the Core Ultra 7's clock speed advantage.

For multi-threaded workloads, the Core Ultra 7 still wins the majority of tests. The 34.8% lead in PassMark multithread and 37.7% lead in Cinebench R23 multicore are decisive. The Xeon Gold 6338T only wins in four narrow categories, and those wins are modest compared to the Core Ultra 7's margins elsewhere.

Where Each One Wins

The Core Ultra 7 270HX Plus is the pick for almost every compute-heavy scenario. Its 80.6% advantage in floating point math makes it ideal for scientific computing and 3D rendering. The 231.3% lead in physics simulation points to strong performance in game physics and engineering simulations. Data encryption at 53.2% ahead suggests better security-related workloads. The 308.5% margin in prime number finding indicates exceptional performance in cryptographic and number-theoretic tasks.

The Xeon Gold 6338T wins in four areas that matter for specific server workloads. Data compression at 11.6% ahead makes it better for database storage and backup systems. Integer math at 19.6% ahead suits financial calculations and certain enterprise applications. Extended instructions at 9.3% ahead helps with SIMD-heavy code. Random string sorting at 9.7% ahead benefits text processing and indexing tasks. These are narrow but real advantages.

The Xeon Gold 6338T also brings platform-level benefits that the benchmarks do not capture. It supports ECC memory, which the Core Ultra 7 does not. Its eight-channel memory bus delivers 204.8 GB/s of bandwidth versus the Core Ultra 7's dual-channel 102.4 GB/s. The Xeon offers 64 PCIe Gen 4 lanes versus the Core Ultra 7's 20 PCIe Gen 5 lanes. For memory-bandwidth-bound server workloads, the Xeon's platform is substantially more capable.

FAQ

Q: Which CPU has better single-thread performance?

A: The Intel Core Ultra 7 270HX Plus is far ahead. It scores 5917 in Cinebench R23 single-core versus 4296 for the Xeon Gold 6338T, a 37.7% lead. In PassMark single-thread, the margin expands to 102.9% (4764 vs 2348).

Q: Which CPU wins in multi-threaded rendering?

A: The Core Ultra 7 270HX Plus wins every Cinebench multicore test. In Cinebench R23 multicore, it scores 41913 compared to the Xeon Gold 6338T's 30430, a 37.7% advantage.

Q: Does the Xeon Gold 6338T win any benchmarks?

A: Yes, it wins four PassMark tests: data compression (557816 vs 493179), integer math (152275 vs 122449), extended instructions (43292 vs 39283), and random string sorting (66495 vs 60020).

Q: What is the difference in memory bandwidth?

A: The Xeon Gold 6338T has an eight-channel memory bus delivering 204.8 GB/s, while the Core Ultra 7 270HX Plus has a dual-channel bus at 102.4 GB/s. The Xeon supports DDR4 and ECC memory; the Core Ultra 7 supports DDR5 without ECC.

Q: How many cores and threads does each CPU have?

A: The Core Ultra 7 270HX Plus has 20 cores and 20 threads. The Xeon Gold 6338T has 24 cores and 48 threads.

Q: Which CPU has a higher boost clock?

A: The Core Ultra 7 270HX Plus boosts to 5.30 GHz, while the Xeon Gold 6338T tops out at 3.40 GHz.

Architecture Differences

The two processors come from completely different design generations and foundries. The Core Ultra 7 270HX Plus uses a 3 nm process from TSMC, codenamed Arrow Lake-HX Refresh. It belongs to the Core Ultra Series 2 generation. The Xeon Gold 6338T uses Intel's 10 nm process, codenamed Ice Lake-SP, with the Ice Lake architecture. The Core Ultra 7 packs 17,800 million transistors on a 243 mm² die, while the Xeon's transistor count and die size are not listed.

Cache organization differs significantly. The Core Ultra 7 270HX Plus has 192 KB of L1 cache per core and 3 MB of L2 cache per core, with 30 MB of shared L3 cache. The Xeon Gold 6338T has 64 KB L1 per core and 1 MB L2 per core, with a larger 36 MB shared L3. The Xeon's larger L3 cache helps with its server-oriented workloads, but the Core Ultra 7's larger per-core caches contribute to its single-thread advantage.

The Core Ultra 7 270HX Plus includes integrated graphics in the form of Arc Xe-LPG Graphics with 64 execution units. The Xeon Gold 6338T has no integrated graphics at all. This makes the Core Ultra 7 a more self-contained solution for systems without a discrete GPU.

Specification Differences

The core and thread counts are a key differentiator. The Xeon Gold 6338T offers 24 cores and 48 threads with Hyper-Threading, while the Core Ultra 7 270HX Plus provides 20 cores and 20 threads without it. Despite having fewer threads, the Core Ultra 7 wins most multi-threaded benchmarks due to its higher clocks and newer architecture.

Clock speeds tell the story of the performance gap. The Core Ultra 7 270HX Plus runs at a 2.40 GHz base clock and boosts to 5.30 GHz. The Xeon Gold 6338T has a 2.10 GHz base clock and a 3.40 GHz boost. The Core Ultra 7's 1.90 GHz boost advantage explains its dominance in single-thread tests.

Power and platform specifications diverge sharply. The Core Ultra 7 270HX Plus has a 55W TDP, while the Xeon Gold 6338T draws 165W. The Core Ultra 7 uses the Intel BGA 2114 socket, indicating a mobile platform, while the Xeon Gold 6338T uses Intel Socket 4189 for server/workstation boards. The Core Ultra 7 has an unlocked multiplier; the Xeon's is locked.

Memory and PCIe capabilities also differ. The Core Ultra 7 270HX Plus supports DDR5 in dual-channel mode with 102.4 GB/s bandwidth. The Xeon Gold 6338T supports DDR4 in eight-channel mode with 204.8 GB/s bandwidth. The Xeon supports ECC memory; the Core Ultra 7 does not. For PCIe, the Core Ultra 7 provides 20 Gen 5 lanes, while the Xeon Gold 6338T provides 64 Gen 4 lanes. The release dates are far apart: the Core Ultra 7 launched on 2026-03-16, while the Xeon Gold 6338T launched on 2021-04-05. Both remain in active production.