Intel Arc G3 vs Intel Core Ultra 7 255HX Comparison

Intel Arc G3 and Intel Core Ultra 7 255HX are two mobile processors from Intel that target different segments of the laptop market. The Arc G3 is part of the Panther Lake generation, while the Core Ultra 7 255HX belongs to the Arrow Lake-HX family. The database contains benchmark results for the Core Ultra 7 255HX, but no recorded benchmark scores for the Arc G3. This asymmetry shapes the analysis, as the comparison relies on the measured performance of the Core Ultra 7 255HX and the architectural specifications of both parts.

Head-to-Head Benchmarks

The recorded data for the Intel Core Ultra 7 255HX shows strong multi-core performance across several Cinebench versions. In Cinebench R15 multicore, the Core Ultra 7 255HX scores 4916 points. The single-core result in the same test is 327 points. Moving to Cinebench R20, the multicore score climbs to 17187, with a single-core score of 2426. Cinebench R23 delivers a multicore score of 32612 and a single-core score of 2163. These numbers indicate a processor that scales well with thread count, as the multicore results are roughly 10 to 15 times higher than the single-core results in each Cinebench version.

The Passmark suite provides additional insight into the Core Ultra 7 255HX. The multithread score is 48234, while the single-thread score is 4562. Integer math reaches 127126, floating point math hits 160624, and extended instructions score 41247. Data compression scores 515143, data encryption scores 39499, and random string sorting scores 62591. The physics score is 2926, and the find prime numbers score is 400. These results cover a broad range of workloads, from arithmetic operations to memory-intensive tasks.

Since the Arc G3 has no benchmark entries in the database, direct head-to-head comparisons are not possible. The data shows that the Core Ultra 7 255HX holds a percentile rank of 93 among all CPUs, with an average benchmark score of 62738. The Arc G3 holds a percentile rank of 50, but its average benchmark score is listed as 0, indicating that no benchmark data has been recorded for it. This means the Core Ultra 7 255HX is positioned well above the median in the database, while the Arc G3 sits at the median with no measured performance to substantiate that placement.

The nearest rivals for the Core Ultra 7 255HX provide context for its score. The AMD Ryzen AI Embedded P185 has an average score of 62839, which is 0.2 percent lower than the Core Ultra 7 255HX. The AMD Ryzen AI 9 PRO 465 scores 62498, 0.4 percent lower. The Intel Core i7-13790F scores 63080, 0.5 percent higher. The Intel Core Ultra 7 265HX scores 63173, 0.7 percent higher. These narrow margins indicate that the Core Ultra 7 255HX sits in a competitive cluster where small differences separate the top performers. The data shows that the Core Ultra 7 255HX is essentially on par with these rivals, trailing the fastest by less than one percent.

Where Each One Wins

The Core Ultra 7 255HX wins in any workload that benefits from a high core count and high clock speeds. It has 20 cores and 20 threads, with a base clock of 2.40 GHz and a boost clock of 5.20 GHz. The Cinebench R23 multicore score of 32612 confirms that it handles heavily threaded tasks well, such as rendering, video encoding, and scientific simulations. The Passmark multithread score of 48234 reinforces this strength. The single-core scores, with a Cinebench R23 single-core result of 2163 and a Passmark single-thread score of 4562, show that it also performs well in lightly threaded applications like web browsing, office productivity, and legacy software.

The Arc G3 has 14 cores and 14 threads, with a base clock of 1.90 GHz and a boost clock of 4.60 GHz. Its lower core count and clock speeds suggest that it would produce lower multi-core scores than the Core Ultra 7 255HX, but without benchmark data, this remains an inference from specifications rather than a measured result. The Arc G3 may win in scenarios where its lower TDP of 25 watts is advantageous, such as thin-and-light laptops where thermal and power constraints limit sustained performance. The Core Ultra 7 255HX has a TDP of 55 watts, which allows it to sustain higher performance but requires more robust cooling and a larger battery.

The integrated graphics differ between the two. The Arc G3 uses Arc B370 graphics, while the Core Ultra 7 255HX uses Arc Xe-LPG Graphics 64EU. The database does not include graphics benchmark scores for either processor, so the relative graphics performance cannot be quantified. The Arc G3, being a newer generation, may offer different graphics capabilities, but the data does not support a definitive claim. The memory bandwidth also differs, with the Arc G3 supporting 136.5 GB/s over LPDDR5X and the Core Ultra 7 255HX supporting 102.4 GB/s over DDR5. Higher memory bandwidth can benefit integrated graphics and memory-intensive workloads, which could give the Arc G3 an edge in those specific tasks.

Architecture Differences

The two processors come from different generations and use different architectures. The Arc G3 is based on Panther Lake, while the Core Ultra 7 255HX is based on Arrow Lake, specifically the Arrow Lake-HX variant. The Arc G3 has no listed architecture name beyond its codename, while the Core Ultra 7 255HX explicitly lists Arrow Lake as its architecture. Both use a 3 nm process node, but they use different foundries. The Arc G3 is manufactured by Intel, while the Core Ultra 7 255HX is manufactured by TSMC. This is a notable difference in the production chain, as it reflects different manufacturing technologies and processes.

The transistor count and die size are only listed for the Core Ultra 7 255HX. It has 17,800 million transistors and a die size of 243 mm². The Arc G3 does not have these figures in the database, so a direct comparison of transistor density or die area is not possible. The cache hierarchy shows differences in the L2 and L3 cache. Both have 192 KB of L1 cache per core. The L2 cache is 2.5 MB per core on the Arc G3 and 3 MB per core on the Core Ultra 7 255HX. The L3 cache is 18 MB shared on the Arc G3 and 30 MB shared on the Core Ultra 7 255HX. The larger L3 cache on the Core Ultra 7 255HX likely contributes to its strong multi-core performance, as it reduces memory latency for frequently accessed data.

The sockets differ, with the Arc G3 using Intel BGA 2540 and the Core Ultra 7 255HX using Intel BGA 2114. These sockets are not interchangeable, so each processor requires a specific motherboard design. The PCIe support also differs. The Arc G3 provides Gen 5 with 4 lanes for the CPU only, while the Core Ultra 7 255HX provides Gen 5 with 20 lanes for the CPU only. The higher lane count on the Core Ultra 7 255HX allows for more PCIe devices, such as multiple NVMe drives or discrete GPUs, which is typical for performance-oriented laptops.

The memory support differs as well. The Arc G3 supports LPDDR5X memory, which is commonly used in laptops for its low power consumption and high bandwidth. The Core Ultra 7 255HX supports DDR5 memory, which is standard for higher-performance systems. Both use dual-channel memory buses, but the bandwidth differs: the Arc G3 reaches 136.5 GB/s, while the Core Ultra 7 255HX reaches 102.4 GB/s. The Arc G3 has a higher theoretical memory bandwidth despite its lower power envelope, which may benefit tasks that are sensitive to memory throughput.

The Core Ultra 7 255HX has an unlocked multiplier, meaning it can be overclocked, while the Arc G3 does not. This is a feature that appeals to enthusiasts who want to push performance beyond stock settings. The release dates also differ. The Core Ultra 7 255HX was released on January 12, 2025, while the Arc G3 was released on May 27, 2026. This indicates that the Arc G3 is a newer product, but the Core Ultra 7 255HX has been on the market longer and has accumulated benchmark data.

The Verdict

The data shows that the Core Ultra 7 255HX is a high-performance mobile processor with a percentile rank of 93 and an average benchmark score of 62738. Its 20 cores, 20 threads, 5.20 GHz boost clock, and 30 MB L3 cache position it well for demanding multi-threaded workloads. The Cinebench R23 multicore score of 32612 and the Passmark multithread score of 48234 confirm that it handles rendering, encoding, and other parallel tasks efficiently. Its nearest rivals, all within one percent of its average score, show that it competes at the top tier of mobile CPUs.

The Arc G3, with no benchmark scores in the database, cannot be evaluated on measured performance. Its specifications suggest a different focus: 14 cores, 14 threads, a lower boost clock of 4.60 GHz, and a TDP of 25 watts. This points to a processor designed for efficiency rather than raw performance. The higher memory bandwidth of 136.5 GB/s and the newer Panther Lake generation may offer advantages in specific scenarios, but the absence of benchmark data means these remain speculative.

Users who need maximum multi-core performance from the recorded data should consider the Core Ultra 7 255HX. Its benchmark scores are well-documented and place it in the 93rd percentile. Users who prioritize efficiency and are willing to accept lower core counts and clock speeds might find the Arc G3 suitable, but the database offers no measured evidence of its performance. The choice comes down to whether the user needs proven performance from the Core Ultra 7 255HX or is willing to rely on the unmeasured potential of the Arc G3.

FAQ

Q: What is the average benchmark score of the Intel Core Ultra 7 255HX?

A: The average benchmark score is 62738, with a percentile rank of 93 among all CPUs in the database.

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

A: No, the database lists no benchmark scores for the Arc G3. Its average benchmark score is recorded as 0.

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

A: The Intel Arc G3 has 14 cores and 14 threads. The Intel Core Ultra 7 255HX has 20 cores and 20 threads.

Q: What is the L3 cache size for each processor?

A: The Intel Arc G3 has 18 MB of shared L3 cache. The Intel Core Ultra 7 255HX has 30 MB of shared L3 cache.

Q: Which processor has a higher boost clock speed?

A: The Intel Core Ultra 7 255HX has a boost clock of 5.20 GHz, while the Intel Arc G3 has a boost clock of 4.60 GHz.

Q: Are both processors manufactured on a 3 nm process node?

A: Yes, both use a 3 nm process node, but the Intel Arc G3 is manufactured by Intel, while the Intel Core Ultra 7 255HX is manufactured by TSMC.

Specification Differences

The two processors differ in several key specifications. The Intel Arc G3 has 14 cores and 14 threads, while the Intel Core Ultra 7 255HX has 20 cores and 20 threads. The base clock is 1.90 GHz for the Arc G3 and 2.40 GHz for the Core Ultra 7 255HX. The boost clock is 4.60 GHz for the Arc G3 and 5.20 GHz for the Core Ultra 7 255HX. The TDP is 25 watts for the Arc G3 and 55 watts for the Core Ultra 7 255HX.

The socket differs: the Arc G3 uses Intel BGA 2540, and the Core Ultra 7 255HX uses Intel BGA 2114. The codename is Panther Lake for the Arc G3 and Arrow Lake-HX for the Core Ultra 7 255HX. The architecture is listed as null for the Arc G3, while the Core Ultra 7 255HX lists Arrow Lake. The foundry is Intel for the Arc G3 and TSMC for the Core Ultra 7 255HX. The transistor count and die size are only available for the Core Ultra 7 255HX, with 17,800 million transistors and a 243 mm² die size.

The cache hierarchy differs in L2 and L3. Both have 192 KB L1 per core, but the L2 is 2.5 MB per core on the Arc G3 and 3 MB per core on the Core Ultra 7 255HX. The L3 is 18 MB shared on the Arc G3 and 30 MB shared on the Core Ultra 7 255HX. Memory support is LPDDR5X for the Arc G3 and DDR5 for the Core Ultra 7 255HX. Both use dual-channel memory, but the bandwidth is 136.5 GB/s for the Arc G3 and 102.4 GB/s for the Core Ultra 7 255HX.

PCIe support shows the Arc G3 with Gen 5 and 4 lanes for the CPU only, while the Core Ultra 7 255HX has Gen 5 and 20 lanes for the CPU only. The integrated graphics are Arc B370 on the Arc G3 and Arc Xe-LPG Graphics 64EU on the Core Ultra 7 255HX. The multiplier is locked on the Arc G3 and unlocked on the Core Ultra 7 255HX. The part numbers are SA4QZ for the Arc G3 and SRVFG for the Core Ultra 7 255HX. The release dates are May 27, 2026 for the Arc G3 and January 12, 2025 for the Core Ultra 7 255HX. Both processors are active in production, and neither has ECC memory support. Both target the mobile market segment.