AMD Ryzen 5 8500G vs Intel Core Ultra 9 285 Comparison

Head-to-Head Benchmarks

The recorded data shows a complete sweep for the Intel Core Ultra 9 285 across all 17 head-to-head benchmark comparisons. The AMD Ryzen 5 8500G does not win a single test in this matchup. The closest margin appears in single-threaded PassMark testing, where the Intel part scores 4881 against 3891, a 20.3% advantage. That is the only contest decided by less than 57%.

The Cinebench suite shows a consistent pattern of dominance. In Cinebench R23 multi-core, the Intel Core Ultra 9 285 posts 48945 versus 18368 for the AMD processor, a 62.5% lead. The same 62.5% delta repeats across every Cinebench test in the database: R15 multi-core (4933 vs 1851), R15 single-core (696 vs 261), R20 multi-core (20556 vs 7714), R20 single-core (2901 vs 1089), and R23 single-core (6909 vs 2593). This uniformity suggests the performance gap is structural rather than workload-specific.

PassMark results reinforce the same conclusion with varied deltas. The largest gap is in prime number finding, where Intel scores 459 against 87, an 81% difference. Floating point math shows an 80% gap (194988 vs 39074). Data encryption shows a 69.7% gap (46949 vs 14220). The smallest PassMark gap outside single-threaded tests is extended instructions at 57.9% (45357 vs 19098).

Multi-threaded workloads show the expected pattern for a 24-core versus 6-core comparison. PassMark multi-thread scores 56602 for Intel versus 21610 for AMD, a 61.8% gap. PassMark physics shows 3598 versus 1318, a 63.4% gap. Integer math shows 164869 versus 63123, a 61.7% gap. Data compression shows 602121 versus 250197, a 58.4% gap. Random string sorting shows 73651 versus 29407, a 60.1% gap.

The average benchmark score difference is stark. The Intel Core Ultra 9 285 records an average score of 75488, placing it in the 95th percentile of all CPUs in the database. The AMD Ryzen 5 8500G averages 20425, placing it in the 74th percentile. The nearest rivals to the AMD chip include the AMD EPYC 9454P at 20422 and the AMD Ryzen 5 5600 at 20468, both within 0.2% of its score. The nearest rivals to the Intel chip include the AMD EPYC 8224P at 75582 and the AMD Ryzen 7 PRO 9755X3D at 75716, all within 0.3%.

FAQ

Q: Which processor wins in single-threaded performance?

A: The Intel Core Ultra 9 285 wins every single-threaded test. Cinebench R23 single-core shows 6909 versus 2593, a 62.5% gap. PassMark single-thread shows 4881 versus 3891, a 20.3% gap.

Q: How large is the multi-core performance difference?

A: The Intel part leads by 62.5% in Cinebench R23 multi-core (48945 vs 18368) and by 61.8% in PassMark multi-thread (56602 vs 21610).

Q: What is the closest benchmark result between the two?

A: PassMark single-thread is the closest, with Intel leading by 20.3% (4881 vs 3891). No other test has a delta smaller than 57.9%.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen 5 8500G and the Intel Core Ultra 9 285 list ECC memory support in the database.

Q: What memory bandwidth does each processor support?

A: The Intel Core Ultra 9 285 supports 102.4 GB/s, while the AMD Ryzen 5 8500G supports 83.2 GB/s. Both use dual-channel DDR5.

Q: How do the two processors compare in percentile ranking?

A: The Intel Core Ultra 9 285 sits in the 95th percentile of all CPUs, while the AMD Ryzen 5 8500G sits in the 74th percentile.

Architecture Differences

The two processors come from different design generations. The AMD Ryzen 5 8500G uses the Zen 4 architecture with the Phoenix2 codename, built on a 4 nm process at TSMC. The Intel Core Ultra 9 285 uses the Arrow Lake architecture with the Arrow Lake-S codename, built on a 3 nm process at TSMC. Both use TSMC as the foundry, but the process nodes differ.

The AMD chip contains 20,900 million transistors on a 137 mm² die. The Intel chip contains 17,800 million transistors on a 243 mm² die. Despite having fewer transistors, the Intel die is significantly larger.

Core counts differ substantially. The AMD Ryzen 5 8500G has 6 cores and 12 threads, indicating simultaneous multithreading. The Intel Core Ultra 9 285 has 24 cores and 24 threads, meaning it does not use hyperthreading. The thread count equals the core count.

Cache hierarchies differ in both capacity and organization. The AMD processor has 64 KB of L1 cache per core, 1 MB of L2 per core, and 16 MB of shared L3 cache. The Intel processor has 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3 cache. The Intel L3 cache is more than double the AMD L3.

The integrated graphics units differ. The AMD Ryzen 5 8500G includes a Radeon 740M. The Intel Core Ultra 9 285 includes Arc Xe-LPG Graphics with 64 execution units.

Market segments differ. The AMD processor is classified as Mobile, while the Intel processor is classified as Desktop. The AMD part uses the AMD Socket AM5, while the Intel part uses Intel Socket 1851.

PCIe support differs in both generation and lane count. The AMD processor provides Gen 4 with 14 lanes (CPU only). The Intel processor provides Gen 5 with 20 lanes (CPU only).

Specification Differences

Clock speeds differ in both directions. The AMD Ryzen 5 8500G has a base clock of 3.50 GHz and a boost clock of 5.00 GHz. The Intel Core Ultra 9 285 has a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The Intel chip boosts higher but idles lower.

Thermal design power is identical at 65 watts for both processors. Neither processor has an unlocked multiplier.

Release dates differ by nearly a year. The AMD Ryzen 5 8500G was released on 2024-01-07. The Intel Core Ultra 9 285 was released on 2024-12-31.

The launch MSRP for the AMD Ryzen 5 8500G is $179. The launch MSRP for the Intel Core Ultra 9 285 is $579.

Memory support is the same type (DDR5) with the same dual-channel bus, but bandwidth differs as noted: 83.2 GB/s for AMD versus 102.4 GB/s for Intel.

The process node differs: 4 nm for AMD versus 3 nm for Intel. The die size differs: 137 mm² for AMD versus 243 mm² for Intel. Transistor counts differ: 20,900 million for AMD versus 17,800 million for Intel.

The AMD processor uses the Phoenix2 codename and belongs to the 8000 series. The Intel processor uses the Arrow Lake-S codename and belongs to the Core Ultra Series 2.

The Verdict

The benchmark data indicates that the Intel Core Ultra 9 285 is the stronger processor across every measured workload. It wins all 17 head-to-head comparisons in the database. The 24-core configuration delivers multi-threaded scores roughly 2.6 times higher than the 6-core AMD chip in Cinebench R23 multi-core (48945 versus 18368). Even in single-threaded tests, where core count matters less, the Intel part holds a decisive advantage of 20.3% in PassMark and 62.5% in Cinebench R23 single-core.

The AMD Ryzen 5 8500G occupies a different position in the performance hierarchy. Its average benchmark score of 20425 places it near the AMD Ryzen 5 5600 (20468) and the AMD EPYC 7713 (20363), all within 0.3% of each other. The Intel Core Ultra 9 285 averages 75488, placing it alongside the AMD EPYC 8224P (75582) and the AMD Ryzen 7 PRO 9755X3D (75716).

The percentile rankings summarize the gap. The Intel processor sits at the 95th percentile of all CPUs. The AMD processor sits at the 74th percentile. That is a 21-percentile-point spread.

The specification sheet confirms the benchmark results. The Intel chip has four times the cores, more than double the L3 cache, a newer 3 nm process node, and higher memory bandwidth. The AMD chip has a higher base clock and a smaller die with more transistors per square millimeter.

Where Each One Wins

The Intel Core Ultra 9 285 wins every benchmark category recorded in the database. There are no exceptions. The wins span Cinebench R15, R20, and R23 in both single-core and multi-core variants, plus the full PassMark suite including data compression, data encryption, extended instructions, prime number finding, floating point math, integer math, multi-thread, physics, random string sorting, and single-thread tests.

The closest contest is PassMark single-thread, where the Intel lead narrows to 20.3%. This indicates that in purely single-threaded desktop responsiveness, the gap is smaller than in heavily parallel workloads. The widest gap is 81% in prime number finding, a workload that scales with thread count and per-core efficiency.

The AMD Ryzen 5 8500G does not hold a winning position in any recorded test against the Intel Core Ultra 9 285. Its role in the database is defined by its nearest rivals: the AMD EPYC 9454P, Intel Core Ultra 7 258V, AMD Ryzen 5 5600, and AMD EPYC 7713. All of these chips score within 0.3% of the AMD Ryzen 5 8500G's average.

For workloads that fit within the Intel processor's strengths, the data shows a clear preference. Multi-threaded rendering, data compression, encryption, and floating point math all favor the Intel part by margins between 57.9% and 80%. Single-threaded tasks favor the Intel part by at least 20.3%.

The AMD processor's advantages are structural rather than performance-based. It uses a smaller die, has a higher base clock, and carries a lower launch MSRP. It also belongs to the mobile market segment, which suggests a different intended use case than the desktop-class Intel processor. The database records no benchmark where the AMD chip outperforms the Intel chip.