Intel Arc G3 vs Intel Core Ultra X9 378H Comparison

Head-to-Head Benchmarks

The database contains no direct benchmark measurements for the Intel Arc G3, so all comparative scoring relies entirely on the recorded results for the Intel Core Ultra X9 378H. The Arc G3 has zero benchmark entries in the database, and its average benchmark score is recorded as 0, placing it at the 50th percentile of all CPUs tracked. The Core Ultra X9 378H, by contrast, has 18 recorded benchmark results, an average benchmark score of 47,468, and sits at the 89th percentile.

The Core Ultra X9 378H delivers a multi-core Cinebench R23 score of 32,553 and a single-core score of 4,595. In Cinebench R20, it records 13,672 multi-core and 1,929 single-core. The older Cinebench R15 test shows 3,281 multi-core and 462 single-core. These results establish a clear performance envelope for the X9 378H, but with no corresponding Arc G3 scores, no head-to-head deltas can be computed.

The nearest rivals for the X9 378H provide context for its standing. The AMD Ryzen 9 PRO 5945 posts an average score of 47,527, which is 0.1% higher than the X9 378H. The Intel Core i7-13700KF averages 47,330, putting it 0.3% behind. The Intel Core Ultra 7 265T records 47,697, a 0.5% advantage over the X9 378H. The Intel Core i9-12900F scores 47,176, which is 0.6% lower. These margins are tight, all within a single percentage point, indicating the X9 378H sits in a crowded performance band.

Because the Arc G3 lacks any benchmark entries, the head-to-head comparison is one-sided. The data shows no wins for the Arc G3 and no wins for the Core Ultra X9 378H in a direct matchup, since no paired tests exist. The only quantifiable comparison is the architectural and specification split, which favors the X9 378H on core count, clock speeds, and memory bandwidth.

Where Each One Wins

The Core Ultra X9 378H wins in every benchmark category where data exists. It uses 16 cores and 16 threads, a 2.00 GHz base clock, and a 5.00 GHz boost clock. The Arc G3 has 14 cores and 14 threads, a 1.90 GHz base clock, and a 4.60 GHz boost clock. Higher core counts and faster clocks translate directly into the X9 378H's recorded scores.

In PassMark tests, the X9 378H shows strong floating-point performance with 114,500 in floating-point math and 92,603 in integer math. Data compression reaches 386,591, while data encryption scores 29,840. Extended instructions hit 31,315, and random string sorting records 44,648. The single-thread PassMark score is 4,453, and the multithread score is 38,298. Physics processing delivers 3,404, and prime-number finding records 357.

The Arc G3, with no benchmarks, cannot claim any wins. Its specifications suggest it is a lower-tier part: fewer cores, lower clocks, and a smaller integrated GPU (Arc B370 versus Arc B390). The X9 378H also has higher memory bandwidth at 153.6 GB/s versus 136.5 GB/s for the Arc G3, which benefits memory-intensive workloads.

For use-case segmentation, the X9 378H is the clear choice for multi-threaded productivity, content creation, and any workload that scales with cores. Its 16 threads outperform the Arc G3's 14 threads in parallel tasks. Single-threaded responsiveness also favors the X9 378H due to the 5.00 GHz boost clock.

The Arc G3's only advantages are its lower core count and lower clocks, which could imply lower power draw in light loads, but the database records both processors at a 25 W TDP, so there is no power distinction in the data. Both use the same Intel BGA 2540 socket, same Panther Lake codename, same 3 nm process node, and same 18 MB shared L3 cache.

The Verdict

The data shows a decisive split. The Intel Core Ultra X9 378H is the only processor in this comparison with benchmark results, and those results place it at the 89th percentile of all CPUs. The Arc G3 has no recorded benchmarks and sits at the 50th percentile, which in this database reflects its lack of measured data rather than a performance score.

For multi-core workloads, the X9 378H's Cinebench R23 score of 32,553 demonstrates substantial parallel capability. Its single-core score of 4,595 in the same test indicates strong per-thread performance. The PassMark multithread score of 38,298 and single-thread score of 4,453 reinforce this pattern.

The nearest rival data confirms the X9 378H is competitive with established desktop processors. It trails the AMD Ryzen 9 PRO 5945 by only 0.1%, leads the Intel Core i7-13700KF by 0.3%, trails the Intel Core Ultra 7 265T by 0.5%, and leads the Intel Core i9-12900F by 0.6%. These are negligible margins, meaning the X9 378H performs at parity with a range of high-end desktop chips.

The Arc G3, lacking any benchmark entries, cannot be positioned relative to the X9 378H or any other processor. Its specifications indicate it is a lower-bin part from the same Panther Lake family, but without measurements, any performance claim would be unsupported.

Buyers choosing between these two mobile processors should select the Core Ultra X9 378H based on the recorded data. It has proven multi-threaded and single-threaded performance, higher clocks, more cores, and greater memory bandwidth. The Arc G3 offers no measured performance evidence and should only be considered if its lower specifications align with more modest requirements, though the database does not quantify that trade-off.

FAQ

Q: Does the Intel Arc G3 have any benchmark scores in the database?

A: No. The Arc G3 has an empty benchmarks array, an average benchmark score of 0, and a percentile of 50. The Core Ultra X9 378H has 18 recorded benchmark scores and an average of 47,468.

Q: How does the Core Ultra X9 378H compare to its nearest rivals?

A: It trails the AMD Ryzen 9 PRO 5945 by 0.1% (47,527 versus 47,468), leads the Intel Core i7-13700KF by 0.3% (47,330 versus 47,468), trails the Intel Core Ultra 7 265T by 0.5% (47,697 versus 47,468), and leads the Intel Core i9-12900F by 0.6% (47,176 versus 47,468).

Q: What are the core and thread counts for both processors?

A: The Arc G3 has 14 cores and 14 threads. The Core Ultra X9 378H has 16 cores and 16 threads.

Q: What is the boost clock difference between the two?

A: The Arc G3 boosts to 4.60 GHz, while the Core Ultra X9 378H boosts to 5.00 GHz. The base clocks are 1.90 GHz for the Arc G3 and 2.00 GHz for the X9 378H.

Q: Do both processors share the same cache configuration?

A: Yes. Both have 192 KB of L1 cache per core, 2.5 MB of L2 cache per core, and 18 MB of shared L3 cache.

Q: What memory bandwidth does each support?

A: The Arc G3 supports 136.5 GB/s, while the Core Ultra X9 378H supports 153.6 GB/s. Both use LPDDR5X memory in a dual-channel configuration.

Architecture Differences

Both processors come from the same Panther Lake family and are built on Intel's 3 nm process node. They share the Intel BGA 2540 socket, indicating they are drop-in compatible at the board level. The Arc G3 is designated as part of the Arc G3 generation, while the Core Ultra X9 378H belongs to the Core Ultra Series 3 with a Panther Lake-H codename.

The core configuration differs: the Arc G3 has 14 cores and 14 threads, while the Core Ultra X9 378H has 16 cores and 16 threads. Neither processor supports hyperthreading, as thread counts equal core counts in both cases. The X9 378H runs a 2.00 GHz base clock and a 5.00 GHz boost clock, compared to the Arc G3's 1.90 GHz base and 4.60 GHz boost.

Cache hierarchies are identical in structure and size: 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3. This means the performance difference comes from core count and clock speed rather than cache capacity.

Memory support is the same type (LPDDR5X, dual-channel), but bandwidth differs. The X9 378H reaches 153.6 GB/s, while the Arc G3 is limited to 136.5 GB/s. Neither supports ECC memory.

PCIe connectivity matches: both use Gen 5 with 4 lanes for the CPU. The integrated graphics differ, with the Arc G3 featuring the Arc B370 and the X9 378H featuring the Arc B390. The B390 is a higher-tier integrated GPU, likely offering more execution units, though the database does not specify those details.

Both processors are active production parts for the mobile market segment. The release dates differ: the Arc G3 launched on 2026-05-27, while the Core Ultra X9 378H launched earlier on 2026-04-03. Neither processor has a launch MSRP recorded in the database, and neither has an unlocked multiplier.

The process node, foundry, and cache configuration are shared, so the architectural delta is confined to core count, clocks, memory bandwidth, and integrated GPU tier. The X9 378H is the higher-binned part in every measurable specification. The Arc G3's part number is SA4QZ, while the X9 378H's part number is unknown.