Intel Arc G3 vs Intel Core Ultra 5 135HL Comparison

Head-to-Head Benchmarks

The database records no direct head-to-head benchmark results for the Intel Arc G3 and the Intel Core Ultra 5 135HL. Both processors share the same overall percentile rank of 50 among all CPUs tracked in the database, indicating they occupy similar mid-range standing in the overall performance distribution. The average benchmark score for both parts is recorded as 0, which reflects the absence of measured performance data in the database rather than a literal score of zero.

Without direct comparison scores, the analysis must rely on the architectural and specification data available. The two chips are fundamentally different in their target platforms: the Intel Arc G3 is a mobile processor with a 25 W TDP, while the Intel Core Ultra 5 135HL is a desktop processor with a 45 W TDP. This 20 W difference in thermal design power suggests the desktop part has additional thermal headroom, though the database does not provide wattage figures beyond the TDP values themselves.

Both processors feature 14 cores, but the thread counts differ substantially. The Intel Arc G3 offers 14 threads, one per core, indicating no hyperthreading support. The Intel Core Ultra 5 135HL provides 18 threads across its 14 cores, meaning four of its cores support simultaneous multithreading. This thread advantage gives the Ultra 5 a theoretical 28.6% higher thread count, which can translate into better performance in heavily multithreaded workloads, assuming similar per-thread efficiency.

Base clock speeds favor the Arc G3 at 1.90 GHz versus 1.70 GHz for the Ultra 5, a 0.20 GHz advantage. Boost clocks are identical at 4.60 GHz for both parts, meaning the peak single-core performance potential is equal on paper. The Arc G3's higher base clock suggests it may sustain higher minimum performance levels, particularly under lighter loads where boost clocks are not fully engaged.

Cache hierarchies show notable differences. The Arc G3 uses larger per-core L1 cache at 192 KB per core versus 112 KB per core for the Ultra 5, a 71.4% increase per core. L2 cache also favors the Arc G3 at 2.5 MB per core versus 2 MB per core, a 25% advantage. However, both processors share identical 18 MB of L3 cache. These cache differences could benefit the Arc G3 in latency-sensitive workloads, though the database does not provide benchmark confirmations.

Memory bandwidth strongly favors the Arc G3 at 136.5 GB/s versus 89.6 GB/s for the Ultra 5, a 52.3% advantage. Both use dual-channel memory buses, but the Arc G3 pairs with LPDDR5X memory while the Ultra 5 supports DDR5 whose speed depends on the motherboard. The memory bandwidth delta is the largest specification gap between these two processors.

Where Each One Wins

The Intel Arc G3 shows advantages in several specification categories that could translate into wins in specific workload types. Its higher base clock of 1.90 GHz versus 1.70 GHz suggests better performance in lightly threaded tasks that rely on sustained clock speeds without boost engagement. The larger L1 cache at 192 KB per core and L2 cache at 2.5 MB per core could improve performance in workloads with high cache reuse, such as certain database operations, compression algorithms, or repetitive computation patterns. The 136.5 GB/s memory bandwidth, which is 52.3% higher than the Ultra 5's 89.6 GB/s, positions the Arc G3 favorably for memory-bandwidth-bound applications like stream processing, large matrix operations, or data analytics that move substantial data through main memory.

The Arc G3 also carries the Arc B370 integrated graphics, a newer generation part, whereas the Ultra 5 uses Arc Xe-LPG with 128 execution units. The database does not provide graphics benchmark scores, but the newer graphics architecture on the Arc G3 suggests potential advantages in GPU-accelerated compute or media workloads.

The Intel Core Ultra 5 135HL wins on thread count with 18 threads versus 14, a 28.6% advantage. This matters most in heavily parallel workloads such as video rendering, 3D simulation, scientific computing, or compilation tasks that scale with thread availability. The 45 W TDP versus 25 W indicates the desktop part is designed for sustained high-load operation, though the database records no thermal or power measurements beyond TDP values. The Ultra 5's PCIe Gen 4 interface with 8 lanes doubles the lane count of the Arc G3's PCIe Gen 5 with 4 lanes in terms of lane quantity, though the Arc G3 uses the newer PCIe generation. For desktop users connecting multiple expansion devices, the Ultra 5's 8 lanes provide more physical connectivity options.

The Ultra 5's 7 nm process node versus the Arc G3's 3 nm node represents a significant manufacturing difference. The 3 nm process is two generations ahead in lithography, which typically enables higher transistor density and better power efficiency. However, the database records no transistor counts or die sizes to quantify this advantage.

Architecture Differences

The two processors come from different Intel architectures and target different market segments. The Intel Arc G3 uses the Panther Lake codename and is classified in the Arc G3 generation, built on a 3 nm process node at Intel's foundry. It targets the mobile segment with a 25 W TDP and uses the Intel BGA 2540 socket. The integrated graphics is Arc B370, a newer graphics architecture.

The Intel Core Ultra 5 135HL belongs to the Core Ultra Series 1 with the Meteor Lake architecture and Meteor Lake-PS codename. It is built on a 7 nm process node, also at Intel's foundry, and targets the desktop segment with a 45 W TDP on Intel Socket 1851. Its integrated graphics is Arc Xe-LPG with 128 execution units.

Core configuration differs beyond thread counts. The Arc G3 has 14 cores and 14 threads, indicating all cores are single-threaded. The Ultra 5 has 14 cores and 18 threads, indicating a heterogeneous core arrangement where some cores support hyperthreading. The database does not specify the exact core type distribution, but the thread count implies the Ultra 5 has 4 cores with SMT support and 10 cores without, or some other combination totaling 18 threads across 14 cores.

Cache architectures differ per core. The Arc G3 allocates 192 KB of L1 cache per core and 2.5 MB of L2 cache per core, versus 112 KB and 2 MB respectively for the Ultra 5. Both share 18 MB of L3 cache. The per-core cache increases on the Arc G3 suggest a design optimized for lower core count efficiency with larger private caches, while the Ultra 5 relies more on shared L3 and thread-level parallelism.

Memory support diverges significantly. The Arc G3 supports LPDDR5X memory with a fixed 136.5 GB/s bandwidth, while the Ultra 5 supports DDR5 with bandwidth that depends on the motherboard, recorded at 89.6 GB/s for the database's reference configuration. Both use dual-channel memory buses. Neither processor supports ECC memory.

PCIe connectivity also differs. The Arc G3 provides PCIe Gen 5 with 4 lanes (CPU only), while the Ultra 5 provides PCIe Gen 4 with 8 lanes (CPU only). The Arc G3 uses the newer Gen 5 standard, which offers double the per-lane bandwidth of Gen 4, but the Ultra 5 offers twice the lane count. For a single high-speed device, the Arc G3's Gen 5 lane may provide higher peak bandwidth; for multiple devices, the Ultra 5's 8 lanes offer more flexibility.

Release dates differ by over two years. The Ultra 5 was released on April 7, 2024, while the Arc G3 is dated May 27, 2026. Both remain active in production status. Neither processor has a launch MSRP recorded in the database, and both have locked multipliers, preventing user overclocking.

FAQ

Q: Which processor has more threads?

A: The Intel Core Ultra 5 135HL has 18 threads across its 14 cores, while the Intel Arc G3 has 14 threads across 14 cores. The Ultra 5 provides 4 additional threads, a 28.6% higher thread count.

Q: How do the boost clocks compare?

A: Both processors have identical boost clocks of 4.60 GHz. The Arc G3 has a higher base clock at 1.90 GHz versus 1.70 GHz for the Ultra 5.

Q: Which processor has more cache?

A: The Arc G3 has larger per-core caches: 192 KB L1 and 2.5 MB L2 per core versus 112 KB L1 and 2 MB L2 per core on the Ultra 5. Both share the same 18 MB of L3 cache.

Q: What memory bandwidth does each support?

A: The Arc G3 supports LPDDR5X with 136.5 GB/s bandwidth, while the Ultra 5 supports DDR5 with 89.6 GB/s bandwidth. The Arc G3 offers 52.3% higher memory bandwidth.

Q: Are these processors overclockable?

A: No. Both the Intel Arc G3 and the Intel Core Ultra 5 135HL have locked multipliers, so user overclocking is not supported.

Q: What are the differences in process node and socket?

A: The Arc G3 uses a 3 nm process and the Intel BGA 2540 socket, while the Ultra 5 uses a 7 nm process and Intel Socket 1851. The Arc G3 is a mobile part with 25 W TDP, and the Ultra 5 is a desktop part with 45 W TDP.

The Verdict

The data presents two processors designed for different environments with distinct strengths. The Intel Arc G3, as a mobile processor on a 3 nm node, delivers superior per-core specifications: higher base clock, larger L1 and L2 caches, significantly higher memory bandwidth, and PCIe Gen 5 connectivity. These features make it well suited for mobile workloads where power efficiency matters, given its 25 W TDP, and where memory-bandwidth-intensive tasks benefit from the 136.5 GB/s throughput.

The Intel Core Ultra 5 135HL, as a desktop processor on a 7 nm node, offers more threads (18 versus 14), double the PCIe lane count (8 versus 4), and a higher 45 W TDP that suggests capacity for sustained heavy loads. Its 18 MB of shared L3 cache matches the Arc G3, but its smaller per-core caches and lower memory bandwidth position it differently. The Ultra 5 suits workloads that scale with thread count and require multiple PCIe expansion options.

Users who prioritize single-thread responsiveness, cache-sensitive workloads, or memory bandwidth should consider the Arc G3 based on its specification advantages. Users who need maximum parallel thread throughput or desktop expansion capabilities should consider the Ultra 5. Neither processor shows benchmark scores in the database, so these conclusions derive entirely from recorded specifications. The identical 50th percentile ranking for both parts indicates the database currently treats them as statistically equivalent in overall standing, pending future benchmark data.