Intel Arc G3 EXTREME vs Intel Core i9-13900HK Comparison

The Verdict

The Intel Core i9-13900HK and the Intel Arc G3 EXTREME represent two very different interpretations of a high-end mobile processor. The data shows a clear split: the Core i9-13900HK wins 4 of the 17 head-to-head benchmarks, while the Arc G3 EXTREME takes 13. However, looking only at the win count misses the nuance. The 13900HK’s victories are decisive in specific workloads, particularly integer math where it leads by 32.3%, and in Cinebench R23 multi-core where it scores 16025 versus 14655, a 9.3% advantage. The Arc G3 EXTREME, meanwhile, dominates in single-threaded, encryption, and floating-point tasks, often by double-digit margins. With both chips sitting at the 85th percentile versus all CPUs, the choice depends entirely on workload priority. The Core i9-13900HK is the pick for legacy multi-core rendering and integer-heavy compilation tasks. The Arc G3 EXTREME is the better choice for modern single-threaded responsiveness, cryptographic workloads, and floating-point simulation. Its 25W TDP, compared to the 13900HK’s 45W, also makes it the more efficient option for thin-and-light designs, though the 13900HK offers a higher 5.40 GHz boost clock versus 4.70 GHz for the Arc part.

Architecture Differences

The two processors diverge fundamentally at the silicon level. The Intel Core i9-13900HK uses the Raptor Lake architecture, built on Intel’s 10 nm process, with a die size of 257 mm². It features 14 cores and 20 threads, which implies a hybrid configuration of performance and efficiency cores. Its cache hierarchy includes 80 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3 cache. Memory support extends to both DDR4 and DDR5, running on a dual-channel bus. The integrated graphics are Iris Xe Graphics with 96 execution units.

The Intel Arc G3 EXTREME, codenamed Panther Lake, uses a completely different approach. It is fabricated on Intel’s 3 nm process, a significant node advantage. It also has 14 cores but only 14 threads, indicating a different core topology without hyper-threading. The cache layout is substantially larger per core: 192 KB of L1, 2.5 MB of L2, and 18 MB of shared L3. Memory support is exclusively LPDDR5X, with a recorded memory bandwidth of 136.5 GB/s, a figure the 13900HK does not list. The integrated graphics are Arc B390, a newer GPU generation. PCIe connectivity also differs: the 13900HK provides Gen 5 with 8 lanes (CPU only), while the Arc G3 EXTREME provides Gen 5 with 4 lanes (CPU only). The Arc part is not multiplier-unlocked, whereas the 13900HK is. These architectural choices explain why the Arc G3 EXTREME achieves higher per-core performance in many tests despite a lower boost clock.

Head-to-Head Benchmarks

The benchmark suite reveals a pattern of specialization. In Cinebench R15 multi-core, the Core i9-13900HK scores 2398 against 2192 for the Arc G3 EXTREME, a 9.4% lead. That lead narrows and reverses in Cinebench R20 multi-core, where the Arc G3 EXTREME scores 10945 versus 9548, a 12.8% advantage. The R23 multi-core test swings back to the 13900HK: 16025 versus 14655, a 9.3% win. This inconsistency suggests that the Arc G3 EXTREME’s newer architecture scales better in some multi-threaded workloads but not others.

Single-core tests favor the Arc G3 EXTREME consistently. In Cinebench R15 single-core, it scores 267 versus 263, a slim 1.5% margin. In R20 single-core, it wins by 12.8% (1545 versus 1347), and in R23 single-core, it leads by 1% (1862 versus 1843.5). PassMark single-thread testing shows the Arc part at 4293 versus 3810, an 11.3% advantage.

The PassMark suite shows the starkest divides. The Arc G3 EXTREME wins data encryption by 19.6% (23881 versus 19198), extended instructions by 18.7% (24017 versus 19534), find prime numbers by 55.6% (248 versus 110), floating-point math by 21.8% (86929 versus 68020), and physics by 24.6% (2515 versus 1896). It also wins multithread by 8% (30659 versus 28194) and random string sorting by 1.8% (37331 versus 36662). The Core i9-13900HK’s counterpunches are data compression (329454 versus 307094, a 7.3% win) and integer math (94120 versus 71164, a commanding 32.3% win). The data shows a processor that excels at integer arithmetic and legacy Cinebench tests, while the Arc G3 EXTREME dominates in cryptography, floating-point, and single-threaded performance.

Specification Differences

The two chips differ in several key specifications. The Core i9-13900HK has a base clock of 2.60 GHz and a boost clock of 5.40 GHz, while the Arc G3 EXTREME runs at 1.90 GHz base and 4.70 GHz boost. TDP is 45W versus 25W, a major efficiency gap. The sockets are incompatible: Intel BGA 1744 for the 13900HK, Intel BGA 2540 for the Arc G3 EXTREME. The process node is 10 nm versus 3 nm. Cache sizes differ across all levels: L1 is 80 KB per core versus 192 KB per core, L2 is 2 MB per core versus 2.5 MB per core, and L3 is 24 MB shared versus 18 MB shared. Memory support is DDR4/DDR5 versus LPDDR5X only. The Arc G3 EXTREME lists a memory bandwidth of 136.5 GB/s, which the 13900HK does not specify. PCIe lanes differ: 8 lanes versus 4 lanes, both Gen 5. Integrated graphics are Iris Xe Graphics 96EU versus Arc B390. The 13900HK has an unlocked multiplier; the Arc part does not. Release dates are 2023-01-03 for the 13900HK and 2026-05-27 for the Arc G3 EXTREME. The 13900HK has a launch MSRP of $697; the Arc G3 EXTREME has no recorded launch MSRP. Part numbers are SRMJ3 and SA4R3, respectively.

FAQ

Q: Which processor is faster in single-threaded tasks?

A: The Intel Arc G3 EXTREME wins every single-core benchmark in the head-to-head data. It leads by 1.5% in Cinebench R15 single-core, 12.8% in R20 single-core, 1% in R23 single-core, and 11.3% in PassMark single-thread.

Q: Which chip is better for multi-core rendering?

A: The results are mixed. The Core i9-13900HK wins Cinebench R15 multi-core by 9.4% and R23 multi-core by 9.3%, but the Arc G3 EXTREME wins R20 multi-core by 12.8% and PassMark multithread by 8%. The 13900HK’s 20 threads versus 14 threads likely help in older Cinebench versions.

Q: What is the biggest performance gap between the two?

A: The largest delta is in PassMark find prime numbers, where the Arc G3 EXTREME scores 248 versus 110 for the Core i9-13900HK, a 55.6% advantage. The largest win for the 13900HK is in integer math, where it leads by 32.3% (94120 versus 71164).

Q: How do their cache configurations compare?

A: The Arc G3 EXTREME has larger per-core caches: 192 KB of L1 and 2.5 MB of L2 per core, versus 80 KB and 2 MB for the 13900HK. However, the 13900HK has more shared L3: 24 MB versus 18 MB.

Q: Are these processors equally positioned in the overall market?

A: Both sit at the 85th percentile versus all CPUs. The Core i9-13900HK has an average benchmark score of 37425, while the Arc G3 EXTREME has 36699. Their nearest rivals are similar in score: the 13900HK’s closest rival is the AMD Ryzen 7 7735H at 37161 with a 0.7% delta, and the Arc G3 EXTREME’s closest rival is the AMD Ryzen AI 7 PRO 450 at 37093 with a -1.1% delta.

Q: Which chip has the higher boost clock and TDP?

A: The Core i9-13900HK boosts to 5.40 GHz with a 45W TDP. The Arc G3 EXTREME boosts to 4.70 GHz with a 25W TDP. The 13900HK is also multiplier-unlocked, while the Arc part is not.