AMD Ryzen 7 9800X3D vs Intel Core Ultra 9 285 Comparison

Head-to-Head Benchmarks

The recorded data delivers a decisive result: Intel Core Ultra 9 285 wins 14 of the 15 head-to-head benchmark comparisons, with AMD Ryzen 7 9800X3D taking a single victory. The margin of Intel's dominance varies sharply by workload, and the numbers reveal where each architecture's strengths lie.

Intel's largest win comes in Cinebench R23 single-core, scoring 6909 against AMD's 2080, a delta of -69.9%. That is a staggering gap for a single-threaded test, and it repeats across other Cinebench runs. In Cinebench R15 single-core, Intel posts 696 versus 328, a -52.9% difference. The multi-core Cinebench results follow the same pattern: R23 multi-core shows Intel at 48945 versus 23230, a -52.5% delta, while R15 multi-core lands at 4933 against 3647, a -26.1% gap. These figures indicate that Intel's advantage is not merely a matter of core count; it also extends to per-thread efficiency in rendering workloads.

Floating-point math is another area of clear separation. PassMark floating point math scores Intel at 194988 against AMD's 79456, a -59.3% delta. Data encryption shows Intel at 46949 versus 22158, a -52.8% difference. Integer math is closer but still favors Intel: 164869 versus 116709, a -29.2% delta. Extended instructions show a more modest gap, with Intel at 45357 and AMD at 38808, a -14.4% difference.

The multi-threaded PassMark score reinforces Intel's lead: 56602 versus 40009, a -29.3% delta. Random string sorting goes to Intel at 73651 versus 48526, a -34.1% delta. Data compression favors Intel at 602121 versus 468017, a -22.3% difference. Even find prime numbers, a test that often rewards cache-heavy designs, goes to Intel, albeit narrowly: 459 versus 423, a -7.8% delta. Single-thread PassMark results show Intel at 4881 versus 4430, a -9.2% gap, which is the closest of all the Intel wins outside the prime number test.

AMD's sole victory comes in PassMark physics, where it scores 4083 against Intel's 3598, a 13.5% delta. That result stands out because physics simulations often depend on memory latency and cache behavior, areas where AMD's design appears competitive. However, it is an isolated bright spot in an otherwise one-sided comparison.

Looking at the overall averages, Intel's average benchmark score sits at 75488, while AMD's is 39768. Intel also holds a higher percentile rank among all CPUs at 95, compared to AMD's 87. The nearest rivals in the database for each part underscore the positioning: Intel's closest competitors are server-class AMD EPYC parts and Ryzen 7 PRO chips, while AMD's nearest rivals are mobile and desktop Ryzen parts with lower average scores.

Architecture Differences

The two processors come from fundamentally different design philosophies. AMD Ryzen 7 9800X3D uses the Zen 5 architecture, codenamed Granite Ridge, built on a 4 nm process at TSMC. It packs 8 cores and 16 threads, with a base clock of 4.70 GHz and a boost clock of 5.20 GHz. The TDP is rated at 120 W, and it runs on AMD Socket AM5. The chip contains 8,315 million transistors on a 70.6 mm² die.

Intel Core Ultra 9 285 uses the Arrow Lake architecture, specifically Arrow Lake-S, built on a 3 nm process, also at TSMC. It has 24 cores and 24 threads, with a base clock of 2.50 GHz and a boost clock of 5.60 GHz. The TDP is significantly lower at 65 W, and it runs on Intel Socket 1851. The transistor count is 17,800 million on a 243 mm² die, more than double AMD's transistor count.

Cache configurations differ sharply. AMD provides 80 KB of L1 cache per core, 1 MB of L2 per core, and 96 MB of shared L3 cache. Intel offers 192 KB of L1 per core, 3 MB of L2 per core, and 36 MB of shared L3. Intel's per-core cache amounts are larger, but AMD's total L3 is substantially bigger, which likely contributes to its physics test win.

Memory support is DDR5 for both, with dual-channel buses. AMD's memory bandwidth is rated at 89.6 GB/s, while Intel's is 102.4 GB/s. Both support ECC memory. PCIe connectivity favors AMD with Gen 5 and 24 lanes from the CPU, versus Intel's Gen 5 with 20 lanes.

Integrated graphics also differ. AMD includes Radeon Graphics, while Intel uses Arc Xe-LPG Graphics with 64 execution units. The Intel part has a locked multiplier, whereas AMD's multiplier is unlocked for overclocking. Release dates place AMD in November 2024 and Intel at the end of December 2024. The launch MSRP for AMD is $479, and for Intel it is $579.

The production status for both is listed as active, and both target the desktop market segment.

Where Each One Wins

Based on the benchmark data, Intel Core Ultra 9 285 is the clear choice for compute-heavy, multi-threaded workloads. Cinebench R23 multi-core shows Intel at 48945 versus 23230, a margin that suggests substantial advantages in rendering, video encoding, and any task that scales across many cores. The 24-core, 24-thread configuration delivers raw throughput that the 8-core, 16-thread AMD part cannot match in these tests.

Intel also wins in single-threaded performance. The Cinebench R23 single-core score of 6909 versus 2080 is the largest delta in the entire comparison, and PassMark single-thread confirms the trend at 4881 versus 4430. Applications that rely on per-core speed, such as legacy software or lightly threaded games, would favor Intel based on these measurements.

Data-centric tasks go to Intel as well. Data compression, data encryption, floating-point math, integer math, and random string sorting all show Intel ahead by margins ranging from -14.4% to -59.3%. These results indicate that for database operations, scientific computing, and file handling, Intel's architecture provides consistently higher throughput.

AMD Ryzen 7 9800X3D wins only in PassMark physics, scoring 4083 against Intel's 3598. Physics simulations often benefit from large cache capacities and low latency, and the 96 MB of shared L3 cache likely explains this result. For workloads that are cache-sensitive and not heavily multi-threaded, AMD shows a measurable edge. However, this is a narrow use case within the recorded benchmarks.

The overall average benchmark score difference, 75488 for Intel versus 39768 for AMD, reinforces that Intel dominates across the breadth of tested workloads. AMD's percentile rank of 87 versus Intel's 95 further places the Intel part in a higher performance tier within the database.

FAQ

Q: Which processor has the higher single-core Cinebench R23 score?

A: Intel Core Ultra 9 285 scores 6909, while AMD Ryzen 7 9800X3D scores 2080, giving Intel a -69.9% delta advantage.

Q: What is the multi-core Cinebench R23 result for each chip?

A: Intel scores 48945 and AMD scores 23230, a -52.5% delta in Intel's favor.

Q: Does AMD win any benchmark comparison?

A: Yes, AMD wins PassMark physics with 4083 versus Intel's 3598, a 13.5% delta.

Q: How do the core and thread counts compare?

A: AMD has 8 cores and 16 threads, while Intel has 24 cores and 24 threads.

Q: What are the TDP ratings for the two processors?

A: AMD is rated at 120 W, and Intel is rated at 65 W.

Q: Which processor has more L3 cache?

A: AMD has 96 MB of shared L3 cache, while Intel has 36 MB of shared L3 cache.

Q: What is the average benchmark score difference?

A: Intel averages 75488, and AMD averages 39768.

The Verdict

The benchmark data makes the choice straightforward for most users. Intel Core Ultra 9 285 wins 14 of 15 comparisons, with decisive margins in Cinebench multi-core and single-core tests, floating-point math, encryption, compression, and integer workloads. Its 24 cores and 24 threads provide a throughput advantage that AMD's 8-core, 16-thread design cannot overcome in the recorded tests. The higher average benchmark score of 75488 versus 39768, and the percentile rank of 95 versus 87, position Intel as the stronger all-around performer.

AMD Ryzen 7 9800X3D offers a single clear win in PassMark physics, where its 96 MB of L3 cache appears to deliver a latency advantage. For workloads that specifically stress cache-dependent physics calculations, AMD shows a measurable edge. The lower TDP of Intel at 65 W versus AMD's 120 W also indicates that Intel achieves its performance at a lower power envelope, based on the specification data.

For users prioritizing maximum multi-threaded rendering, data processing, and single-thread speed, the Intel part is the data-supported pick. For niche workloads that mirror the PassMark physics test, AMD's cache-heavy design has a documented advantage, but the overall benchmark record favors Intel across the board.