AMD Ryzen Threadripper 9980X vs Intel Core Ultra 9 285 Comparison

The AMD Ryzen Threadripper 9980X and Intel Core Ultra 9 285 occupy completely different ends of the desktop processor spectrum. The data shows a 64-core, 128-thread workstation monster facing a 24-core, 24-thread mainstream chip. The Threadripper wins 15 of 17 head-to-head benchmarks, while the Core Ultra 9 wins only the two single-thread PassMark tests. The average benchmark score for the Threadripper sits at 321,753, which is 99th percentile among all CPUs, while the Core Ultra 9 averages 75,488, placing it in the 95th percentile. These are not direct competitors in the traditional sense, but the comparison reveals how far the two designs diverge in capability and intent.

The Verdict

The benchmark data indicates the AMD Ryzen Threadripper 9980X is the clear choice for workloads that scale with core count and memory bandwidth. Its Cinebench R23 multicore score of 130,529 dwarfs the Core Ultra 9's 48,945, a 166.7% advantage. The Threadripper's PassMark multithread score of 141,641 versus 56,602 shows a 150.2% lead in sustained parallel execution. Anyone running rendering, simulation, heavy compilation, or large-scale data processing should pick the Threadripper based on these numbers.

The Intel Core Ultra 9 285 wins in the narrow category of single-threaded PassMark performance, scoring 4,881 to the Threadripper's 4,537, a 7% advantage. This makes it the better choice for lightly threaded applications like older games or legacy productivity software where the higher boost clock and lower overhead matter. However, the Core Ultra 9's 65W TDP and dual-channel memory bus suggest a system designed for efficiency and mainstream use, not extreme compute. The Threadripper's nearest rivals in the database are server and workstation parts like the AMD Ryzen Threadripper PRO 9985WX (0.3% ahead) and Intel Xeon 6781P (2% behind), confirming its placement in the high-end professional tier.

Architecture Differences

The two processors use fundamentally different silicon designs. The Threadripper 9980X uses AMD's Zen 5 architecture on a 4nm TSMC process, with the codename Shimada Peak. It packs 66,520 million transistors across 8 chiplets, each 70.6 mm². The Core Ultra 9 285 uses Intel's Arrow Lake architecture on a 3nm TSMC process, with 17,800 million transistors on a single 243 mm² die. The process node difference is notable, but the transistor count disparity is enormous, reflecting the Threadripper's massive core count.

Cache hierarchies differ sharply. The Threadripper provides 64 KB L1 and 1 MB L2 per core, plus 256 MB of shared L3 cache. The Core Ultra 9 offers 192 KB L1 and 3 MB L2 per core, with 36 MB of shared L3. The Threadripper's 256 MB L3 is a critical advantage for datasets that exceed the Core Ultra's capacity, reducing memory traffic. The Core Ultra 9 does have integrated Arc Xe-LPG Graphics with 64 execution units, while the Threadripper has no integrated graphics, meaning it requires a discrete GPU.

Memory support also separates them. The Threadripper uses a quad-channel DDR5 memory bus with 204.8 GB/s bandwidth. The Core Ultra 9 uses dual-channel DDR5 with 102.4 GB/s. That is exactly double the bandwidth for the AMD part, which matters for multi-threaded workloads that saturate memory. Both support ECC memory, but the Threadripper's socket, AMD Socket sTR5, and PCIe Gen 5 with 80 lanes vastly outpace the Core Ultra 9's Intel Socket 1851 and 20 lanes. The Threadripper is unlocked for overclocking, while the Core Ultra 9 is locked.

Head-to-Head Benchmarks

The largest deltas appear in PassMark integer math, where the Threadripper scores 872,071 against the Core Ultra 9's 164,869, a 428.9% advantage. Extended instructions show a 404.8% lead, with scores of 228,959 versus 45,357. Data compression delivers 2,974,534 versus 602,121, a 394% gap. These are the workloads where the core count and cache size translate directly into throughput.

Cinebench results are consistent across all versions. R15 multicore shows 13,157 versus 4,933 (166.7% lead), R20 multicore shows 54,822 versus 20,556 (166.7% lead), and R23 multicore shows 130,529 versus 48,945 (166.7% lead). Single-core Cinebench also favors the Threadripper, with R23 single-core at 18,427 versus 6,909 (166.7% lead). This is unexpected given the Core Ultra 9's higher boost clock of 5.60 GHz versus 5.40 GHz, but the Zen 5 architecture appears to deliver more instructions per clock in these tests.

PassMark floating point math shows a 186.7% lead for the Threadripper (559,003 versus 194,988), while random string sorting shows a 296.6% lead (292,083 versus 73,651). Data encryption favors the Threadripper by 234.7% (157,137 versus 46,949), and physics by 122.4% (8,001 versus 3,598). The smallest Threadripper win is in find prime numbers, with 769 versus 459, a 67.5% lead. The only Intel wins are the two identical PassMark single-thread tests, both showing 4,881 versus 4,537, a 7% advantage.

FAQ

Q: Which processor has more cores and threads?

A: The AMD Ryzen Threadripper 9980X has 64 cores and 128 threads. The Intel Core Ultra 9 285 has 24 cores and 24 threads. The Threadripper has no hyperthreading equivalent on the Intel side, as the Core Ultra 9 runs one thread per core.

Q: What is the average benchmark score difference?

A: The Threadripper 9980X has an average benchmark score of 321,753, while the Core Ultra 9 285 averages 75,488. This places the Threadripper at the 99th percentile of all CPUs and the Core Ultra 9 at the 95th percentile.

Q: Does the Intel processor win any benchmarks?

A: Yes, the Intel Core Ultra 9 285 wins the PassMark single-thread test with a score of 4,881, which is 7% higher than the Threadripper's 4,537. Both the "passmark_single_thread" and "passmark_singlethread" entries show this result.

Q: What is the memory bandwidth difference?

A: The Threadripper 9980X supports quad-channel DDR5 with 204.8 GB/s bandwidth. The Core Ultra 9 285 supports dual-channel DDR5 with 102.4 GB/s. The Threadripper has exactly double the memory bandwidth.

Q: Do both processors support ECC memory?

A: Yes, both the AMD Ryzen Threadripper 9980X and the Intel Core Ultra 9 285 support ECC memory according to the recorded data.

Q: How many PCIe lanes does each processor provide?

A: The Threadripper 9980X provides 80 PCIe Gen 5 lanes from the CPU. The Core Ultra 9 285 provides 20 PCIe Gen 5 lanes from the CPU. This is a 4x difference in lane count.

Where Each One Wins

The Threadripper 9980X wins every multi-threaded benchmark and most single-threaded Cinebench tests. Its 256 MB L3 cache and quad-channel memory make it dominant in data compression, encryption, integer math, and floating point math. The 428.9% lead in integer math and 394% lead in data compression indicate workloads like database processing, financial modeling, and scientific computing will see massive gains. The 234.7% lead in data encryption points to secure communications or storage encryption tasks benefiting substantially.

The Core Ultra 9 285 wins only the PassMark single-thread test, meaning it holds an advantage in applications that rely on one or two fast cores without heavy memory traffic. Its 5.60 GHz boost clock and smaller cache footprint give it a 7% edge in that specific metric. The integrated Arc graphics also provide a capability the Threadripper lacks entirely, making the Core Ultra 9 suitable for systems that need basic display output without a separate GPU. The 65W TDP suggests lower power draw for those single-threaded tasks, though the database does not record power consumption figures.

For rendering with Cinebench, the Threadripper's 166.7% lead across R15, R20, and R23 versions is consistent and decisive. For PassMark multithread, the 150.2% lead confirms that the core count advantage translates to real-world parallel scaling. The Core Ultra 9's wins are isolated to the single-thread PassMark metric, which does not represent the broader workload profile of either processor.

Specification Differences

The processors differ in nearly every specification field. The Threadripper 9980X uses 64 cores and 128 threads, while the Core Ultra 9 285 uses 24 cores and 24 threads. Base clocks are 3.20 GHz versus 2.50 GHz, and boost clocks are 5.40 GHz versus 5.60 GHz. TDP is 350W versus 65W. The Threadripper uses AMD Socket sTR5, while the Core Ultra 9 uses Intel Socket 1851.

Architecture is Zen 5 (codename Shimada Peak) versus Arrow Lake (codename Arrow Lake-S). Process nodes are 4nm versus 3nm, both from TSMC. Transistor counts are 66,520 million versus 17,800 million, and die sizes are 8x 70.6 mm² versus 243 mm². Cache configurations differ: 64 KB L1 per core versus 192 KB L1 per core, 1 MB L2 per core versus 3 MB L2 per core, and 256 MB L3 versus 36 MB L3.

Memory support is DDR5 for both, but the Threadripper uses quad-channel with 204.8 GB/s bandwidth, while the Core Ultra 9 uses dual-channel with 102.4 GB/s. Both support ECC. PCIe is Gen 5 with 80 lanes for the Threadripper and Gen 5 with 20 lanes for the Core Ultra 9. The Threadripper has no integrated graphics, while the Core Ultra 9 has Arc Xe-LPG Graphics 64EU. The Threadripper is multiplier unlocked; the Core Ultra 9 is locked. Release dates are 2025-07-29 for the Threadripper and 2024-12-31 for the Core Ultra 9.