AMD Ryzen AI Max+ PRO 395 vs Intel Core Ultra 9 285 Comparison

Head-to-Head Benchmarks

The recorded data paints a clear split between these two processors. The AMD Ryzen AI Max+ PRO 395 and the Intel Core Ultra 9 285 trade blows across the test suite, but the distribution of wins is heavily tilted. Intel takes 11 of the 15 head-to-head comparisons, while AMD secures 4. The margins, however, tell a more nuanced story than the raw win count.

Starting with the most dramatic discrepancy, the Cinebench R23 single-core test shows a massive gap. Intel scores 6909 against AMD's 2012.5, a delta of -70.9% for the AMD part. This is the largest single margin in the entire dataset. The R15 single-core test reinforces the trend: Intel posts 696 versus AMD's 306, a -56% difference. These results indicate a fundamental advantage in lightly threaded performance for the Intel chip, likely tied to its higher boost clock of 5.60 GHz compared to AMD's 5.10 GHz.

The multi-core picture is more complex. In Cinebench R15 multi-core, AMD actually wins with 5247 against Intel's 4933, a 6.4% advantage. Yet in Cinebench R23 multi-core, the tables turn decisively. Intel scores 48945, beating AMD's 35061 by 28.4%. The difference between these two Cinebench versions suggests that the longer, more sustained workload in R23 favors Intel's architecture, while the shorter R15 run plays to AMD's strengths.

The PassMark suite offers a broader view of workload-specific behavior. AMD wins data compression with 639356 versus 602121, a 6.2% edge. The extended instructions test also goes to AMD: 52067 against 45357, a 14.8% lead. Integer math shows AMD ahead by 15.7%, scoring 190720 versus 164869. These wins point to AMD's efficiency in specific compute patterns, particularly those that leverage its higher thread count.

Intel counters strongly in several other PassMark tests. Floating point math goes to Intel with 194988 against AMD's 120533, a 38.2% margin. Data encryption favors Intel at 46949 versus 32840, a 30.1% lead. The prime number search test shows Intel ahead by 38.1% with 459 versus 284. Physics simulation goes to Intel by 11.4%, and random string sorting by 4.8%. The overall PassMark multithread score lands in Intel's favor: 56602 versus 51502, a 9% difference. Single-thread performance in PassMark also favors Intel: 4881 versus 4078, a 16.5% gap.

The average benchmark scores reflect these results. AMD's average is 80762, while Intel's is 75488. Interestingly, AMD's nearest rivals in the database include the Intel Xeon 638 at 80723 and the Intel Xeon w5-2565X at 80671, both within 0.1% of AMD's average. Intel's nearest rivals include the AMD EPYC 8224P at 75582 and the AMD EPYC 4545P at 75373, again within a fraction of a percent. Both chips sit at the 95th percentile among all CPUs in the database, confirming their high-end positioning despite their different strengths.

Architecture Differences

The two processors come from fundamentally different design philosophies. AMD uses the Zen 5 architecture on a 4 nm TSMC process, with the codename Strix Halo. Intel uses the Arrow Lake architecture on a 3 nm TSMC process, with the codename Arrow Lake-S. The process node difference gives Intel a slight density advantage, though the database does not quantify the practical impact of this.

Core counts differ significantly. AMD provides 16 cores and 32 threads, while Intel provides 24 cores and 24 threads. Intel's higher core count does not translate into more threads, as it lacks simultaneous multithreading. AMD's 32 threads give it a 33% thread advantage, which helps explain its wins in integer math and compression workloads.

Cache hierarchy shows another divergence. AMD allocates 80 KB of L1 per core, 1 MB of L2 per core, and 64 MB of shared L3 cache. Intel allocates 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3. Intel's per-core cache is larger, but AMD's shared L3 is nearly double at 64 MB versus 36 MB. This could influence how each chip handles data sets that fit within the shared cache.

Memory support differs by market segment. AMD uses LPDDR5X with a quad-channel bus and 256.0 GB/s of bandwidth. Intel uses DDR5 with a dual-channel bus and 102.4 GB/s of bandwidth. AMD's memory bandwidth is 2.5 times higher, a substantial advantage for memory-intensive workloads. Both support ECC memory.

The integrated graphics solutions are entirely different. AMD pairs the CPU with a Radeon 8060S, while Intel uses an Arc Xe-LPG Graphics 64EU. The database does not include graphics benchmarks, so the comparative performance remains unmeasured. PCIe connectivity also differs: AMD offers Gen 4 with 16 CPU lanes, while Intel offers Gen 5 with 20 CPU lanes. Intel's newer PCIe standard and higher lane count give it an edge for expansion, though AMD's bandwidth may suffice for its target use cases.

Power and packaging diverge as well. AMD has a 55 W TDP and uses the AMD Socket FP11, a mobile platform. Intel has a 65 W TDP and uses the Intel Socket 1851, a desktop platform. The market segment difference is explicit in the data: AMD is listed as Mobile, Intel as Desktop. This explains the form factor and socket choices, though both are active production parts. AMD's release date is 2025-01-05, while Intel's is 2024-12-31, a matter of days apart.

AMD's transistor count and die size are not recorded in the database. Intel's are: 17,800 million transistors on a 243 mm² die. The absence of AMD's figures prevents a direct density comparison. Both chips have locked multipliers, so neither supports user overclocking in the traditional sense. AMD's part number is 100-000001243, Intel's is SRQD4.

FAQ

Q: Which processor has the higher boost clock?

A: The Intel Core Ultra 9 285 reaches 5.60 GHz, while the AMD Ryzen AI Max+ PRO 395 reaches 5.10 GHz. The higher boost clock aligns with Intel's large single-core benchmark lead.

Q: How do the thread counts compare?

A: AMD provides 32 threads from 16 cores, while Intel provides 24 threads from 24 cores. AMD's thread advantage helps in integer math and compression tests, where it wins by 15.7% and 6.2% respectively.

Q: What is the memory bandwidth difference?

A: AMD lists 256.0 GB/s over a quad-channel LPDDR5X bus. Intel lists 102.4 GB/s over a dual-channel DDR5 bus. AMD's bandwidth is more than double Intel's.

Q: Which chip wins in Cinebench R23 multi-core?

A: Intel wins with 48945 against AMD's 35061, a 28.4% advantage. This is despite AMD winning the older R15 multi-core test by 6.4%.

Q: Do both chips support ECC memory?

A: Yes, the database lists ECC memory support as true for both the AMD Ryzen AI Max+ PRO 395 and the Intel Core Ultra 9 285.

Q: What are the market segments for these processors?

A: AMD is listed as Mobile with the AMD Socket FP11. Intel is listed as Desktop with the Intel Socket 1851. The AMD chip uses LPDDR5X memory, while Intel uses DDR5.

The Verdict

The data supports a clear split based on workload type. The Intel Core Ultra 9 285 dominates in single-threaded performance and in several multi-threaded compute categories. Its Cinebench R23 single-core score of 6909 dwarfs AMD's 2012.5, and its floating point math score of 194988 is 38.2% higher. For tasks that rely on single-core speed, high clock rates, or floating point throughput, the Intel chip is the stronger choice.

The AMD Ryzen AI Max+ PRO 395 wins in integer math, compression, and extended instructions. Its 32 threads and 256.0 GB/s memory bandwidth support these workloads. The average benchmark score of 80762 versus Intel's 75488 suggests that AMD holds a slight overall edge in the aggregated database metrics, even though Intel wins more individual tests.

The market segment distinction matters. AMD is a mobile part on Socket FP11 with LPDDR5X memory. Intel is a desktop part on Socket 1851 with DDR5 memory. A buyer constrained to a mobile platform must choose AMD, while a desktop builder can choose Intel. The data does not indicate that either chip is categorically superior; it indicates that each fits a different physical and workload context.

Specification Differences

The two processors differ across nearly every recorded specification. AMD has 16 cores and 32 threads; Intel has 24 cores and 24 threads. AMD's base clock is 3.00 GHz, Intel's is 2.50 GHz. AMD's boost clock is 5.10 GHz, Intel's is 5.60 GHz. AMD's TDP is 55 W, Intel's is 65 W.

The sockets are incompatible: AMD uses AMD Socket FP11, Intel uses Intel Socket 1851. The architectures differ: Zen 5 versus Arrow Lake. The codenames differ: Strix Halo versus Arrow Lake-S. The process nodes differ: 4 nm versus 3 nm, both from TSMC. Intel records 17,800 million transistors on a 243 mm² die; AMD does not list these figures.

Cache configurations differ in size and allocation. AMD has 80 KB L1 per core, 1 MB L2 per core, and 64 MB shared L3. Intel has 192 KB L1 per core, 3 MB L2 per core, and 36 MB shared L3. Memory support differs: LPDDR5X for AMD, DDR5 for Intel. The memory bus is quad-channel for AMD and dual-channel for Intel. Memory bandwidth is 256.0 GB/s for AMD and 102.4 GB/s for Intel.

PCIe support differs: AMD offers Gen 4 with 16 lanes, Intel offers Gen 5 with 20 lanes. Integrated graphics differ: Radeon 8060S versus Arc Xe-LPG Graphics 64EU. Market segments differ: Mobile for AMD, Desktop for Intel. Release dates are close: 2025-01-05 for AMD, 2024-12-31 for Intel. Intel has a launch MSRP of $579; AMD has no launch MSRP recorded. Both have locked multipliers, both support ECC memory, and both are active production parts.

Where Each One Wins

The AMD Ryzen AI Max+ PRO 395 wins in data compression, extended instructions, integer math, and Cinebench R15 multi-core. These are workloads that benefit from high thread counts and substantial memory bandwidth. The 32 threads and 256.0 GB/s bandwidth give it a structural advantage in parallel integer operations. The 64 MB shared L3 cache likely helps keep working sets resident on-die.

The Intel Core Ultra 9 285 wins in every other measured category. Single-core performance across both Cinebench R15 and R23 shows a dominant lead, with deltas of -56% and -70.9% respectively. Floating point math, data encryption, prime number search, physics simulation, random string sorting, and the PassMark multithread test all favor Intel. Its 24 cores and 5.60 GHz boost clock drive these results.

The aggregated averages place AMD slightly ahead at 80762 versus 75488, but the individual workload wins favor Intel. The database lists both at the 95th percentile, so neither is a weak performer. The choice depends on whether the target workload resembles AMD's winning categories (integer-heavy, compression-focused, memory-bandwidth-sensitive) or Intel's winning categories (single-threaded, floating-point-heavy, encryption-focused). The physical platform also constrains the decision: mobile users must take AMD, desktop users can take either, and the data shows Intel is the stronger desktop performer in most tests.