AMD Ryzen 9 9900X3D vs Intel Arc G3 Comparison

The Verdict

The AMD Ryzen 9 9900X3D is the clear performance leader in this comparison, delivering exceptional multi-threaded and single-threaded results across all recorded benchmarks. The Intel Arc G3, by contrast, has no recorded benchmark scores in the database, with an average benchmark score of 0 and a percentile rank of 50, meaning it performs below the majority of CPUs tracked. The 9900X3D sits at the 91st percentile of all CPUs, a substantial gap. The Arc G3 targets a completely different market segment: mobile computing with a 25 W TDP, while the 9900X3D is a desktop part with a 120 W TDP. Any user requiring desktop-class compute performance should choose the AMD processor; the Arc G3 is positioned for low-power mobile systems where its modest 14-core, 14-thread configuration and 25 W envelope take priority over raw throughput.

Architecture Differences

The AMD Ryzen 9 9900X3D is built on the Zen 5 architecture with the Granite Ridge codename, fabricated on a 4 nm process at TSMC using 16,630 million transistors across a 2x 70.6 mm² die configuration. It features 12 cores and 24 threads with a base clock of 4.40 GHz and a boost clock of 5.50 GHz. The cache hierarchy includes 80 KB of L1 per core, 1 MB of L2 per core, and a substantial 128 MB of L3 cache, which is a defining characteristic of the X3D line. Memory support is DDR5 with dual-channel operation and a measured bandwidth of 89.6 GB/s. It supports ECC memory, uses PCIe Gen 5 with 24 CPU lanes, and includes integrated Radeon Graphics. The multiplier is unlocked, and the socket is AMD Socket AM5.

The Intel Arc G3 is a mobile processor based on the Panther Lake codename, fabricated on a 3 nm process at Intel's own foundry. It has 14 cores and 14 threads, indicating no hyper-threading support, with a base clock of 1.90 GHz and a boost clock of 4.60 GHz. Its cache configuration differs markedly: 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. Memory support is LPDDR5X with dual-channel operation and a higher bandwidth of 136.5 GB/s, but ECC memory is not supported. PCIe connectivity is limited to Gen 5 with 4 CPU lanes. The integrated graphics are Arc B370, and the socket is Intel BGA 2540, which is soldered rather than socketed. The multiplier is locked, consistent with mobile platform design.

The process node difference is notable: Intel's 3 nm versus TSMC's 4 nm. The Arc G3 also has a significantly higher memory bandwidth figure despite being a mobile part, though the 9900X3D's 128 MB of L3 cache dwarfs the Arc G3's 18 MB shared L3. The transistor count and die size are not recorded for the Intel part, so a direct comparison on that front cannot be made from the data.

Where Each One Wins

The AMD Ryzen 9 9900X3D wins unequivocally in every benchmark category where data exists. It records scores in 3DMark, Cinebench R15, R20, and R23, Geekbench, and PassMark suites covering multi-threaded, single-threaded, and specialized workloads. The 9900X3D achieves a 3DMark max threads score of 13,795 and a Cinebench R23 multi-core score of 47,737, indicating strong performance in rendering, simulation, and heavily threaded applications. Single-threaded performance is also dominant, with a Geekbench single-core score of 3,041 and a Cinebench R23 single-core score of 6,739, which positions it well for lightly threaded tasks such as gaming and general desktop responsiveness.

The Intel Arc G3 has no recorded benchmark scores, so its wins cannot be quantified from the database. What the data does show is its design intent: a 25 W TDP, mobile market segment, and LPDDR5X memory support. These attributes suggest the Arc G3 is aimed at power-constrained mobile devices where battery life and thermal limits are primary concerns. The 136.5 GB/s memory bandwidth is higher than the 9900X3D's 89.6 GB/s, which could benefit memory-bound tasks in theory, but without benchmark scores, no performance advantage can be confirmed. The Arc G3 also has a larger L1 cache per core (192 KB versus 80 KB) and more L2 per core (2.5 MB versus 1 MB), but again, these architectural advantages do not translate into recorded performance wins.

FAQ

Q: Which processor has a higher average benchmark score?

A: The AMD Ryzen 9 9900X3D has an average benchmark score of 54,762, while the Intel Arc G3 has an average benchmark score of 0, indicating no recorded benchmark data.

Q: How do the core and thread counts compare?

A: The AMD Ryzen 9 9900X3D has 12 cores and 24 threads, whereas the Intel Arc G3 has 14 cores and 14 threads, meaning the Intel part has more physical cores but no simultaneous multi-threading.

Q: What is the TDP difference between the two?

A: The AMD Ryzen 9 9900X3D has a TDP of 120 W, while the Intel Arc G3 has a TDP of 25 W, a difference of 95 W in favor of the mobile part.

Q: Which processor supports ECC memory?

A: The AMD Ryzen 9 9900X3D supports ECC memory; the Intel Arc G3 does not.

Q: What is the L3 cache capacity of each?

A: The AMD Ryzen 9 9900X3D has 128 MB of L3 cache, while the Intel Arc G3 has 18 MB of shared L3 cache.

Q: Which processor has a higher boost clock?

A: The AMD Ryzen 9 9900X3D has a boost clock of 5.50 GHz, compared to the Intel Arc G3's boost clock of 4.60 GHz.

Q: What memory types do they support?

A: The AMD Ryzen 9 9900X3D supports DDR5, while the Intel Arc G3 supports LPDDR5X.

Q: Are both processors currently in production?

A: Yes, both the AMD Ryzen 9 9900X3D and the Intel Arc G3 have an active production status.

Head-to-Head Benchmarks

The database contains no head-to-head benchmark entries between the AMD Ryzen 9 9900X3D and the Intel Arc G3, and the Intel part has an empty benchmark array. This means a direct numerical comparison cannot be constructed from the recorded data. However, the AMD processor's own benchmark results provide a reference point. In 3DMark, the 9900X3D scores 12,490 in the 16-thread test, 9,002 in the 8-thread test, 4,885 in the 4-thread test, 2,512 in the 2-thread test, and 1,269 in the single-thread test. The max threads score is 13,795, which shows scaling as thread count increases from 8 to 16 and beyond.

In Cinebench, the 9900X3D delivers 4,811 in R15 multi-core and 679 in R15 single-core, 20,049 in R20 multi-core and 2,830 in R20 single-core, and 47,737 in R23 multi-core with 6,739 in R23 single-core. Geekbench results show 22,884 multi-core and 3,041 single-core. PassMark results include 56,154 in multi-thread, 4,646 in single-thread, 685,074 in data compression, 33,282 in data encryption, 55,426 in extended instructions, 544 in find prime numbers, 119,622 in floating point math, 179,727 in integer math, 5,340 in physics, and 71,864 in random string sorting.

The nearest rivals to the 9900X3D in the database are Intel parts: the Core Ultra 5 245KF with an average score of 55,093 and a delta of -0.6%, the Core Ultra 5 245K with 54,053 and a delta of 1.3%, the Xeon 6505P with 53,701 and a delta of 2%, and the Core i7-14700F with 53,620 and a delta of 2.1%. These deltas indicate the 9900X3D is within a narrow range of these rivals, slightly behind the 245KF and slightly ahead of the others. The Arc G3 has no nearest rivals listed, reinforcing its position outside the desktop performance envelope.

Specification Differences

| Specification | AMD Ryzen 9 9900X3D | Intel Arc G3 |

| --- | --- | --- |

| Cores | 12 | 14 |

| Threads | 24 | 14 |

| Base Clock | 4.40 GHz | 1.90 GHz |

| Boost Clock | 5.50 GHz | 4.60 GHz |

| TDP | 120 W | 25 W |

| Socket | AMD Socket AM5 | Intel BGA 2540 |

| Process Node | 4 nm | 3 nm |

| Foundry | TSMC | Intel |

| L1 Cache | 80 KB (per core) | 192 KB (per core) |

| L2 Cache | 1 MB (per core) | 2.5 MB (per core) |

| L3 Cache | 128 MB | 18 MB (shared) |

| Memory Support | DDR5 | LPDDR5X |

| Memory Bandwidth | 89.6 GB/s | 136.5 GB/s |

| ECC Memory | Yes | No |

| PCIe | Gen 5, 24 Lanes (CPU only) | Gen 5, 4 Lanes (CPU only) |

| Integrated Graphics | Radeon Graphics | Arc B370 |

| Market Segment | Desktop | Mobile |

| Multiplier Unlocked | Yes | No |

| Part Number | 100-000001368 | SA4QZ |

| Launch MSRP | $599 | Not available |

The AMD part uses a dual-die design with 2x 70.6 mm² dies and 16,630 million transistors, fields that are not recorded for the Intel part. The release dates differ substantially: the 9900X3D was released on 2025-01-05, while the Arc G3 has a release date of 2026-05-27. The Intel part also has no launch MSRP recorded.