AMD Ryzen 9 9955HX3D vs Intel Arc G3 EXTREME Comparison

AMD Ryzen 9 9955HX3D and Intel Arc G3 EXTREME represent two distinct approaches to mobile computing power, with the database recording a 15-0 sweep in favor of the AMD part across all shared benchmark tests. The Ryzen 9 9955HX3D sits in the 96th percentile of all CPUs tracked, while the Arc G3 EXTREME ranks in the 85th percentile. This places the AMD processor among the top tier of recorded performance, whereas the Intel part, while still strong, operates in a different performance class. The following analysis breaks down where each processor wins, the architectural decisions behind those results, and the specific benchmark numbers that define their separation.

Where Each One Wins

The benchmark record shows a complete victory for the AMD Ryzen 9 9955HX3D across every shared test. All 15 head-to-head comparisons favor the AMD part, with no wins recorded for the Intel Arc G3 EXTREME. This is not a narrow margin; the average benchmark score for the Ryzen 9 9955HX3D is 97453, compared to 36699 for the Arc G3 EXTREME, a difference of roughly 2.7 times. The AMD processor delivers higher scores in every category, from single-threaded tasks to heavily parallel workloads.

The largest deltas appear in multi-threaded and integer-heavy workloads. In PassMark integer math, the Ryzen 9 9955HX3D scores 222503 against 71164 for the Intel part, a 212.7% advantage. Cinebench R15 multicore shows a 175.7% lead, with the AMD part scoring 6042.5 versus 2192. These results indicate that the Ryzen 9 9955HX3D is designed for sustained throughput in tasks that scale with core count and parallel execution. The Intel Arc G3 EXTREME, by contrast, shows its smallest deficit in single-threaded PassMark tests, where it trails by only 5.1% (4511 versus 4293). This suggests the Intel architecture has competitive single-core capability but cannot match the AMD part when all cores engage.

For workloads like data compression, encryption, and extended instruction sets, the Ryzen 9 9955HX3D leads by 155.9%, 65.2%, and 161.5% respectively. These are common in server-side processing, database operations, and scientific computing. The Intel part does not win any category, but its strongest relative performance appears in PassMark single-thread (4293) and Cinebench R23 single-core (1862), where the gap narrows to 16% or less. This indicates that for lightly threaded applications, the Arc G3 EXTREME is closer to competitive, though still behind.

Architecture Differences

The two processors use fundamentally different design philosophies. The AMD Ryzen 9 9955HX3D is built on Zen 5 architecture with the Fire Range codename, fabricated on a 4 nm process by TSMC. It integrates 16 cores and 32 threads, with a base clock of 2.50 GHz and a boost clock of 5.40 GHz. The cache hierarchy is substantial: 80 KB of L1 per core, 1 MB of L2 per core, and 128 MB of L3 cache. This large L3 cache is a defining feature of the X3D line, designed to reduce memory latency in cache-sensitive workloads.

The Intel Arc G3 EXTREME uses Panther Lake architecture, fabricated on a 3 nm process by Intel. It has 14 cores and 14 threads, with no simultaneous multithreading. Base clock is 1.90 GHz, boost clock is 4.70 GHz. The cache configuration differs markedly: 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. While the per-core L1 and L2 caches are larger on the Intel part, the total L3 is far smaller. The AMD processor also consumes more power, with a TDP of 55 watts versus 25 watts for the Intel part.

Memory support also diverges. The Ryzen 9 9955HX3D uses DDR5 with dual-channel support and a recorded bandwidth of 89.6 GB/s, plus ECC memory support. The Arc G3 EXTREME uses LPDDR5X with dual-channel support and a higher recorded bandwidth of 136.5 GB/s, but no ECC. The AMD part supports PCIe Gen 5 with 28 lanes from the CPU, while the Intel part supports Gen 5 with only 4 lanes. The AMD processor has an unlocked multiplier, the Intel does not. Integrated graphics differ as well: the Ryzen 9 9955HX3D includes a Radeon 610M, while the Arc G3 EXTREME includes an Arc B390.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen 9 9955HX3D has 16 cores and 32 threads. The Intel Arc G3 EXTREME has 14 cores and 14 threads, meaning it lacks simultaneous multithreading.

Q: What is the difference in cache size?

A: The AMD part has 128 MB of L3 cache, while the Intel part has 18 MB of shared L3. Per-core L1 and L2 caches are larger on the Intel part: 192 KB and 2.5 MB per core respectively, versus 80 KB and 1 MB per core on the AMD part.

Q: How do their single-threaded scores compare?

A: In Cinebench R23 single-core, the AMD part scores 2159.5 versus 1862 for the Intel part, a 16% lead. In PassMark single-thread, the AMD part scores 4511 versus 4293, a 5.1% lead. The Intel part is closer here than in multi-threaded tests.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 9 9955HX3D supports ECC memory. The Intel Arc G3 EXTREME does not support ECC memory.

Q: What is the memory bandwidth difference?

A: The Intel Arc G3 EXTREME records a higher memory bandwidth of 136.5 GB/s, compared to 89.6 GB/s for the AMD Ryzen 9 9955HX3D. Both use dual-channel memory buses.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 9 9955HX3D has a boost clock of 5.40 GHz. The Intel Arc G3 EXTREME has a boost clock of 4.70 GHz.

Specification Differences

The recorded specifications show clear divergence in several key areas. The AMD Ryzen 9 9955HX3D uses 16 cores and 32 threads, while the Intel Arc G3 EXTREME uses 14 cores and 14 threads. Base clocks differ: 2.50 GHz for the AMD part, 1.90 GHz for the Intel part. Boost clocks are 5.40 GHz and 4.70 GHz respectively. TDP is 55 watts for the AMD part and 25 watts for the Intel part. The process node is 4 nm for the AMD part (TSMC) and 3 nm for the Intel part (Intel foundry).

Cache configurations differ in structure. The AMD part has 80 KB L1 per core, 1 MB L2 per core, and 128 MB L3. The Intel part has 192 KB L1 per core, 2.5 MB L2 per core, and 18 MB shared L3. Memory support is DDR5 for AMD and LPDDR5X for Intel, with bandwidths of 89.6 GB/s and 136.5 GB/s respectively. ECC memory is supported only on the AMD part. PCIe lanes from the CPU are 28 for AMD and 4 for Intel, both Gen 5. The AMD part has an unlocked multiplier; the Intel part does not. Integrated graphics are Radeon 610M for AMD and Arc B390 for Intel.

Head-to-Head Benchmarks

The recorded head-to-head data shows the AMD Ryzen 9 9955HX3D winning every test, but the margins vary significantly by workload. The largest win is in PassMark integer math, where the AMD part scores 222503 against 71164, a 212.7% delta. This reflects the advantage of 16 cores with 32 threads versus 14 cores with 14 threads, combined with the larger L3 cache. Cinebench R15 multicore shows a 175.7% lead (6042.5 versus 2192), and Cinebench R23 multicore shows 160.4% (38161.5 versus 14655). These multi-threaded scores confirm that the AMD part scales far better with parallel workloads.

PassMark extended instructions show a 161.5% advantage (62813 versus 24017), and data compression shows 155.9% (785811 versus 307094). Random string sorting is 123.7% ahead (83497 versus 37331), and prime number finding is 111.7% ahead (525 versus 248). PassMark multithread is 104.4% ahead (62674 versus 30659). These results span algorithmic categories, indicating a broad performance lead rather than a narrow one.

Physics and floating point math show smaller but still substantial gaps. PassMark physics is 86.4% ahead (4687 versus 2515), and floating point math is 65.8% ahead (144122 versus 86929). Data encryption is 65.2% ahead (39446 versus 23881). Single-threaded tests show the smallest margins. Cinebench R15 single-core is 24.3% ahead (332 versus 267), Cinebench R23 single-core is 16% ahead (2159.5 versus 1862), and PassMark single-thread is 5.1% ahead (4511 versus 4293). The Intel Arc G3 EXTREME is closest in these single-threaded tests, but still loses every comparison.

The overall picture is one of consistent dominance by the AMD Ryzen 9 9955HX3D, with the widest gaps in multi-threaded and integer-heavy tasks. The Intel Arc G3 EXTREME shows competitive single-thread performance but falls behind in every recorded benchmark, with its smallest deficit being 5.1% in PassMark single-thread. The data confirms that the AMD part is in a higher performance class, reflected in its 96th percentile ranking versus the 85th percentile for the Intel part.