AMD Ryzen AI Max+ 388 vs Intel Core Ultra X9 388H Comparison

FAQ

Q: Which processor has the higher average benchmark score?

A: The AMD Ryzen AI Max+ 388 records an average benchmark score of 49796, while the Intel Core Ultra X9 388H scores 44466. The AMD part sits at the 90th percentile of all CPUs, while the Intel part sits at the 88th percentile.

Q: How do the two compare in Cinebench R23 multicore?

A: The Intel Core Ultra X9 388H edges out the AMD Ryzen AI Max+ 388 by 0.8%, scoring 18911 versus 18759. This is the closest multicore result in the head-to-head set.

Q: Which chip wins in single-threaded performance?

A: The Intel Core Ultra X9 388H wins every single-core benchmark. In Cinebench R23 single-core it leads by 10.9% (2200.5 versus 1960), and in PassMark single-thread it leads by 2.2% (4280 versus 4185).

Q: Where does the AMD processor show its biggest advantage?

A: The AMD Ryzen AI Max+ 388 leads by 20.6% in PassMark integer math (109588 versus 90882), and by 10.8% in PassMark data compression (400887 versus 361763). It also wins PassMark extended instructions by 9.3%.

Q: What is the core and thread configuration difference?

A: The AMD Ryzen AI Max+ 388 has 8 cores and 16 threads, while the Intel Core Ultra X9 388H has 16 cores and 16 threads. The Intel part has more cores but no hyperthreading benefit per core.

Q: Which processor has the larger L3 cache?

A: The AMD Ryzen AI Max+ 388 has 32 MB shared L3 cache, while the Intel Core Ultra X9 388H has 18 MB shared L3 cache. The AMD part also has 80 KB L1 per core and 1 MB L2 per core, versus 192 KB L1 per core and 3 MB L2 per core for Intel.

Architecture Differences

The two processors come from fundamentally different design philosophies. The AMD Ryzen AI Max+ 388 uses the Zen 5 architecture on the Strix Halo codename, fabricated on a 4 nm process at TSMC. It features 8 cores with 16 threads, each core carrying 80 KB of L1 and 1 MB of L2, with a shared 32 MB L3 pool. The die is built from two chiplets measuring 2x 70.6 mm². AMD pairs this with a Radeon 8060S integrated GPU, and the chip supports ECC memory, which is unusual for a mobile part.

The Intel Core Ultra X9 388H uses the Panther Lake architecture, also known as Panther Lake-H, fabricated on a 3 nm process at Intel's own foundry. It has 16 cores and 16 threads, meaning there is no simultaneous multithreading. Each core carries 192 KB of L1 and 3 MB of L2, with a shared 18 MB L3. The integrated graphics are Arc B390. Intel does not support ECC memory here. The process node difference (3 nm versus 4 nm) gives Intel a lithography advantage, while AMD counters with a larger shared cache and a higher base clock.

Memory architecture also diverges sharply. The AMD part uses quad-channel LPDDR5X with a peak bandwidth of 256.0 GB/s, while the Intel part uses dual-channel LPDDR5X with 153.6 GB/s. That is a 66.7% bandwidth advantage for AMD. PCIe connectivity differs: AMD provides Gen 4 with 16 lanes (CPU only), while Intel provides Gen 5 with 4 lanes (CPU only). The Gen 5 standard offers higher per-lane speed, but the lane count is far lower.

Clock speeds follow separate strategies. AMD runs a base clock of 3.60 GHz and boosts to 5.00 GHz. Intel runs a lower base of 2.10 GHz but boosts slightly higher to 5.10 GHz. The TDP ratings also differ: AMD is rated at 55 watts, Intel at 25 watts. That makes the Intel part substantially more power-efficient on paper, although the performance data must be weighed against that.

Head-to-Head Benchmarks

The benchmark suite shows a clear split between workloads. The Intel Core Ultra X9 388H wins 12 of the 15 head-to-head tests, while the AMD Ryzen AI Max+ 388 wins 3. However, the magnitude of the wins matters more than the count.

Starting with Cinebench, Intel takes R15 multicore by 2.8% (2955 versus 2872) and R15 single-core by 3.7% (309.5 versus 298). In R23 multicore, the gap narrows to just 0.8% (18911 versus 18759). The R23 single-core result is the biggest Cinebench margin: Intel leads by 10.9% (2200.5 versus 1960). That single-core advantage aligns with the higher boost clock of 5.10 GHz versus 5.00 GHz.

PassMark results reveal where each chip excels. AMD wins data compression by a substantial 10.8% (400887 versus 361763), indicating strong memory throughput and efficient integer handling for compression algorithms. AMD also wins extended instructions by 9.3% (32719 versus 29943), showing superiority in SIMD-heavy code. The largest AMD win is integer math at 20.6% (109588 versus 90882), a decisive margin that points to a strong ALU pipeline.

Intel dominates the remaining PassMark tests, often by large margins. The biggest Intel win is find prime numbers, where it scores 358 versus AMD's 145, a 59.5% advantage. That test is highly sensitive to branch prediction and single-thread latency. Intel also wins floating-point math by 35.4% (112550 versus 72722), a major gap that suggests a much stronger FPU throughput per core. Physics scores follow a similar pattern: Intel wins by 42.9% (3226 versus 1843). Multithread overall goes to Intel by 9% (36811 versus 33486), despite AMD's higher memory bandwidth, indicating that the extra 8 physical cores carry significant weight.

Data encryption is another Intel win, by 29.5% (28490 versus 20092). Random string sorting is close, with Intel leading by just 1.8% (44010 versus 43196). Single-thread and single-thread (duplicate test) both show Intel ahead by 2.2% (4280 versus 4185).

The average benchmark scores place AMD at 49796 and Intel at 44466, but that aggregate includes the AMD part's own benchmark list, which features different tests. The head-to-head set is the more direct comparison, and it favors Intel in total, but the wins are concentrated in specific domains.

Specification Differences

The core count difference is the most obvious: AMD has 8 cores and 16 threads, Intel has 16 cores and 16 threads. Intel's thread count equals its core count because it lacks SMT, while AMD doubles its cores via simultaneous multithreading.

Base clock differs by 1.50 GHz: AMD runs at 3.60 GHz, Intel at 2.10 GHz. Boost clock is nearly identical: AMD at 5.00 GHz, Intel at 5.10 GHz. Intel's higher boost helps its single-core wins, while AMD's higher base clock helps sustained multicore loads at lower core counts.

TDP is a major differentiator: AMD is rated at 55 watts, Intel at 25 watts. That is a 30-watt gap, which affects cooling requirements and battery life in mobile systems. The socket also differs: AMD uses Socket FP11, Intel uses BGA 2540.

Cache hierarchy is split. AMD has 80 KB L1 per core and 1 MB L2 per core with 32 MB shared L3. Intel has 192 KB L1 per core and 3 MB L2 per core with 18 MB shared L3. Intel's per-core L1 and L2 are larger, but AMD's shared L3 is nearly double.

Memory bandwidth: AMD provides 256.0 GB/s via quad-channel LPDDR5X, Intel provides 153.6 GB/s via dual-channel LPDDR5X. That is a 102.4 GB/s difference in AMD's favor. ECC support is present on AMD, absent on Intel.

PCIe: AMD uses Gen 4 with 16 lanes, Intel uses Gen 5 with 4 lanes. Integrated graphics differ: Radeon 8060S on AMD, Arc B390 on Intel. Process node: AMD at 4 nm TSMC, Intel at 3 nm Intel. Release dates are one day apart: AMD on 2026-01-05, Intel on 2026-01-04. Manufacturing: AMD uses TSMC, Intel uses its own foundry.

Where Each One Wins

The AMD Ryzen AI Max+ 388 wins in workloads that stress integer arithmetic, data compression, and extended instruction sets. The 20.6% advantage in PassMark integer math suggests strong general-purpose integer performance, which benefits database operations, sorting algorithms, and certain types of financial modeling. The 10.8% win in data compression points to efficient use of its 256.0 GB/s memory bandwidth and large 32 MB L3 cache. The 9.3% win in extended instructions indicates solid SIMD throughput for vectorized code.

The Intel Core Ultra X9 388H wins in almost everything else. The 59.5% margin in find prime numbers shows exceptional single-thread latency, which matters for interactive workloads, legacy code, and branch-heavy algorithms. The 35.4% win in floating-point math makes it the better choice for scientific computing, physics simulations, and any FP-heavy numerical code. The 42.9% win in physics directly translates to better performance in physics engines for mobile workstations. The 29.5% win in data encryption favors secure communication and VPN workloads.

For multicore rendering, the two are nearly tied: Intel leads by 0.8% in Cinebench R23 multicore, but AMD's 8 cores with SMT nearly match Intel's 16 physical cores. That suggests AMD's Zen 5 cores are more efficient per thread, but Intel's raw core count nullifies the advantage. For single-core tasks, Intel is clearly ahead, with a 10.9% lead in R23 single-core and a 2.2% lead in PassMark single-thread.

The Intel part also wins overall multithread by 9%, which is a significant margin given that AMD has the bandwidth advantage. The 25-watt TDP makes Intel the more power-efficient choice for sustained workloads in thin laptops, while AMD's 55-watt TDP suggests a need for more robust cooling.

The Verdict

The data indicates two distinct usage profiles. The AMD Ryzen AI Max+ 388 is the stronger choice for workloads that depend on memory bandwidth, integer throughput, and compression. Its 256.0 GB/s quad-channel memory and 32 MB L3 cache deliver measurable wins in data compression (10.8%), integer math (20.6%), and extended instructions (9.3%). It also offers ECC memory support, which is valuable for reliability-sensitive computing. The 90th percentile ranking and average score of 49796 place it slightly above its nearest rivals, including the Intel Core 9 273PE and AMD Ryzen 9 7900.

The Intel Core Ultra X9 388H is the better pick for general-purpose mobile computing, especially where single-thread speed, floating-point math, and power draw matter. It wins 12 of 15 head-to-head benchmarks, including all Cinebench tests, and its 25-watt TDP is less than half of AMD's 55-watt rating. The 59.5% lead in find prime numbers and 42.9% lead in physics are decisive for latency-sensitive tasks. The 88th percentile ranking is slightly lower than AMD's, but the head-to-head results show Intel ahead in the majority of measurable workloads.

For a user prioritizing data-heavy integer work, encryption-adjacent compression, or memory-bound tasks, the AMD Ryzen AI Max+ 388 offers specific advantages that the benchmark data confirms. For a user needing balanced performance across single-core, floating-point, and multithreaded workloads, with lower power consumption, the Intel Core Ultra X9 388H delivers more consistent results. The choice comes down to workload mix: AMD for bandwidth and integer, Intel for raw core count, single-thread speed, and efficiency.