Intel Arc G3 vs Intel Core Ultra 7 155HL Comparison

The Verdict

The Intel Arc G3 and Intel Core Ultra 7 155HL serve different segments of the market, and the recorded data makes the separation clear. The Arc G3 is a 14-core, 14-thread mobile processor built on Panther Lake with a 3 nm process node, a 25 W TDP, and an Arc B370 integrated GPU. The Core Ultra 7 155HL is a 16-core, 22-thread desktop processor on Meteor Lake-PS with a 7 nm node, a 45 W TDP, and an Arc Xe-LPG 128EU integrated GPU.

The data indicates the Core Ultra 7 155HL offers more threads, a higher boost clock, and a larger shared L3 cache, making it the stronger choice for heavily threaded workloads. The Arc G3 counters with a smaller process node, lower TDP, higher memory bandwidth, and a newer integrated graphics solution. The benchmark results show no recorded wins for either processor in the head-to-head comparison, as both entries report zero wins and zero benchmark scores. The percentile versus all CPUs is identical at 50 for both, meaning neither has a statistical advantage in the database's overall rankings.

For a builder targeting a desktop system with expandable memory and higher power delivery, the Core Ultra 7 155HL fits. For a mobile platform where power efficiency and compact design matter, the Arc G3 takes priority. The launch MSRP for the Core Ultra 7 155HL is $438, while the Arc G3 has no recorded launch price.

Where Each One Wins

The Core Ultra 7 155HL wins on thread count, with 22 threads versus 14, and on boost clock, with 4.80 GHz versus 4.60 GHz. It also carries a larger shared L3 cache at 24 MB compared to 18 MB, and its base clock runs at 1.40 GHz versus 1.90 GHz, though the Arc G3 starts higher. The desktop segment designation and Socket 1851 support indicate a platform geared toward sustained performance rather than portability.

The Arc G3 wins on process node efficiency, using 3 nm versus 7 nm, and on power draw, with a 25 W TDP versus 45 W. Its memory bandwidth reaches 136.5 GB/s, which is 46.9 GB/s higher than the Core Ultra 7 155HL's 89.6 GB/s. The Arc G3 also uses LPDDR5X memory support, while the Core Ultra 7 155HL uses DDR5 that depends on the motherboard. The integrated graphics differ as well: the Arc G3 pairs with Arc B370, while the Core Ultra 7 155HL uses Arc Xe-LPG 128EU, suggesting the former targets more demanding visual tasks.

PCIe connectivity also splits the two: the Arc G3 offers Gen 5 with 4 lanes, while the Core Ultra 7 155HL offers Gen 4 with 8 lanes. The Gen 5 link on the Arc G3 provides higher per-lane bandwidth, but the Core Ultra 7 155HL doubles the lane count for expansion.

Architecture Differences

The Arc G3 uses the Panther Lake codename and belongs to the Arc G3 generation (Panther Lake). The Core Ultra 7 155HL uses the Meteor Lake codename and belongs to the Ultra 7 generation (Meteor Lake-PS). The process nodes differ: the Arc G3 uses 3 nm, while the Core Ultra 7 155HL uses 7 nm, both fabricated by Intel.

Core and thread counts diverge significantly. The Arc G3 has 14 cores and 14 threads, meaning no hyperthreading. The Core Ultra 7 155HL has 16 cores and 22 threads, indicating a hybrid design with additional threads per core. The cache hierarchy also differs: the Arc G3 has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3. The Core Ultra 7 155HL has 112 KB L1 per core, 2 MB L2 per core, and 24 MB shared L3. The Core Ultra 7 155HL holds more total L3, while the Arc G3 has larger per-core L1 and L2 caches.

Memory support separates the two. The Arc G3 uses LPDDR5X with a dual-channel bus and 136.5 GB/s bandwidth. The Core Ultra 7 155HL uses DDR5 with a dual-channel bus and 89.6 GB/s bandwidth, but the memory type depends on the motherboard. Neither supports ECC memory. The Arc G3 uses PCIe Gen 5 with 4 lanes, while the Core Ultra 7 155HL uses PCIe Gen 4 with 8 lanes.

Integrated graphics differ: the Arc G3 pairs with Arc B370, while the Core Ultra 7 155HL pairs with Arc Xe-LPG 128EU. Both are Intel products, but the B370 designation suggests a newer or higher-tier iGPU. The market segments are opposite: the Arc G3 is mobile, and the Core Ultra 7 155HL is desktop. Both are active production parts, and neither has an unlocked multiplier.

FAQ

Q: Which processor has more threads for parallel workloads?

A: The Core Ultra 7 155HL has 22 threads, while the Arc G3 has 14 threads. The Core Ultra 7 155HL also has 16 cores versus 14 cores.

Q: What is the difference in power consumption?

A: The Arc G3 has a TDP of 25 W, while the Core Ultra 7 155HL has a TDP of 45 W. The Arc G3 uses less power by the recorded specification.

Q: Which processor supports faster memory bandwidth?

A: The Arc G3 supports LPDDR5X memory with 136.5 GB/s bandwidth. The Core Ultra 7 155HL supports DDR5 with 89.6 GB/s bandwidth, depending on the motherboard.

Q: Are both processors on the same process node?

A: No. The Arc G3 uses a 3 nm process node, while the Core Ultra 7 155HL uses a 7 nm process node, both fabricated by Intel.

Q: Which processor has the larger shared L3 cache?

A: The Core Ultra 7 155HL has 24 MB of shared L3 cache, while the Arc G3 has 18 MB of shared L3 cache.

Q: What are the release dates for these processors?

A: The Arc G3 was released on 2026-05-27, and the Core Ultra 7 155HL was released on 2024-04-07.

Head-to-Head Benchmarks

The recorded head-to-head benchmark data shows zero wins for both processors, and the average benchmark score for each is 0. The percentile versus all CPUs is 50 for both, indicating they sit at the median in the database's overall distribution. Without benchmark scores or nearest rival comparisons, the quantitative performance differences must be inferred from specifications.

The largest specification gap is in memory bandwidth. The Arc G3 delivers 136.5 GB/s, which is 46.9 GB/s higher than the Core Ultra 7 155HL's 89.6 GB/s. That advantage benefits memory-intensive workloads like integrated graphics rendering or data streaming. The Core Ultra 7 155HL counters with 8 more threads, which directly scales in multi-threaded applications such as video encoding or compilation. Its 4.80 GHz boost clock exceeds the Arc G3's 4.60 GHz by 0.20 GHz, giving it a slight single-thread edge in burst workloads.

The L3 cache difference is 6 MB in favor of the Core Ultra 7 155HL, which improves data reuse for large working sets. The Arc G3's per-core L1 cache is 192 KB versus 112 KB, and its per-core L2 cache is 2.5 MB versus 2 MB, so the Arc G3 maintains a per-core cache advantage. The TDP difference of 20 W (45 W versus 25 W) means the Core Ultra 7 155HL can draw nearly double the power, likely sustaining higher clocks under load, while the Arc G3 operates in a tighter thermal envelope.

The integrated graphics differ in naming: Arc B370 versus Arc Xe-LPG 128EU. The database does not provide benchmark scores for either iGPU, so the performance hierarchy remains unquantified. The PCIe generation gap favors the Arc G3 with Gen 5, but the Core Ultra 7 155HL offers twice the lanes (8 versus 4), so the total bandwidth depends on the workload and the number of attached devices.

Specification Differences

The two processors differ in every major specification category except manufacturer (Intel), memory bus (dual-channel), ECC support (false for both), production status (active for both), and multiplier unlocked (false for both).

• Cores: The Arc G3 has 14 cores; the Core Ultra 7 155HL has 16 cores.
• Threads: The Arc G3 has 14 threads; the Core Ultra 7 155HL has 22 threads.
• Base clock: The Arc G3 runs at 1.90 GHz; the Core Ultra 7 155HL runs at 1.40 GHz.
• Boost clock: The Arc G3 reaches 4.60 GHz; the Core Ultra 7 155HL reaches 4.80 GHz.
• TDP: The Arc G3 uses 25 W; the Core Ultra 7 155HL uses 45 W.
• Socket: The Arc G3 uses Intel BGA 2540; the Core Ultra 7 155HL uses Intel Socket 1851.
• Codename: The Arc G3 uses Panther Lake; the Core Ultra 7 155HL uses Meteor Lake-PS.
• Generation: The Arc G3 is Arc G3 (Panther Lake); the Core Ultra 7 155HL is Ultra 7 (Meteor Lake-PS).
• Process node: The Arc G3 uses 3 nm; the Core Ultra 7 155HL uses 7 nm.
• L1 cache: The Arc G3 has 192 KB per core; the Core Ultra 7 155HL has 112 KB per core.
• L2 cache: The Arc G3 has 2.5 MB per core; the Core Ultra 7 155HL has 2 MB per core.
• L3 cache: The Arc G3 has 18 MB shared; the Core Ultra 7 155HL has 24 MB shared.
• Memory support: The Arc G3 uses LPDDR5X; the Core Ultra 7 155HL uses DDR5 depending on the motherboard.
• Memory bandwidth: The Arc G3 delivers 136.5 GB/s; the Core Ultra 7 155HL delivers 89.6 GB/s.
• PCIe: The Arc G3 uses Gen 5 with 4 lanes; the Core Ultra 7 155HL uses Gen 4 with 8 lanes.
• Integrated graphics: The Arc G3 uses Arc B370; the Core Ultra 7 155HL uses Arc Xe-LPG 128EU.
• Market segment: The Arc G3 is mobile; the Core Ultra 7 155HL is desktop.
• Release date: The Arc G3 released on 2026-05-27; the Core Ultra 7 155HL released on 2024-04-07.
• Launch MSRP: The Arc G3 has no recorded launch MSRP; the Core Ultra 7 155HL has a launch MSRP of $438.
• Part number: The Arc G3 is SA4QZ; the Core Ultra 7 155HL is SRN2Z.

The data shows two distinct design philosophies: one optimized for power efficiency and mobile integration, the other for desktop flexibility and thread parallelism. Builders should match the processor to the platform requirements rather than expecting one to dominate across all metrics.