AMD Ryzen AI 7 450 vs AMD Ryzen Threadripper 9980X Comparison

The Verdict

The data in this comparison is unambiguous. The AMD Ryzen Threadripper 9980X wins all 15 recorded head-to-head benchmark comparisons against the AMD Ryzen AI 7 450. The Threadripper 9980X delivers a multi-core performance advantage that ranges from roughly 81% to over 90% depending on the specific workload, while its single-core lead is much smaller at 14%. The Ryzen AI 7 450, a mobile processor with an 87th percentile ranking among all CPUs, is positioned for portable systems that require efficient operation. The Threadripper 9980X, sitting at the 99th percentile, is a desktop workstation part built for sustained, massive parallel throughput. The database shows the mobile chip is not competitive on raw performance, but it serves a completely different physical and thermal context. The Threadripper 9980X carries a launch MSRP of $4999, while the Ryzen AI 7 450 has no recorded launch price, which further separates their intended markets. The verdict is clear: the Threadripper 9980X is for compute-heavy professional workloads, while the Ryzen AI 7 450 is for thin-and-light laptops that need capable multi-threading within a 28-watt envelope.

Where Each One Wins

The recorded benchmark suite includes no wins for the Ryzen AI 7 450. Every test, from Cinebench R15 and R23 to PassMark's integer math, floating point math, encryption, compression, and physics simulations, goes to the Threadripper 9980X. The closest margin is in PassMark single-thread performance, where the Threadripper 9980X scores 4537 against the Ryzen AI 7 450's 3901, a 14% advantage. That gap reflects the Threadripper's higher boost clock of 5.40 GHz compared to 5.10 GHz on the mobile part, despite the mobile chip's lower base clock of 2.00 GHz versus 3.20 GHz.

The Threadripper 9980X dominates every multi-threaded test by a wide margin. In Cinebench R23 multi-core, it scores 130529 versus 18316, an 86% difference. PassMark integer math shows 872071 versus 88531, a 89.8% gap. Data compression tests reveal 2974534 versus 315906, an 89.4% difference. Encryption workloads show 157137 versus 16247, a 89.7% gap. Physics simulation, which scales with core count, shows 8001 versus 1578, an 80.3% difference. These results consistently indicate that the Threadripper 9980X is built for workloads that can utilize 64 cores and 128 threads, while the Ryzen AI 7 450's 8 cores and 16 threads are suited for mainstream mobile tasks.

The Ryzen AI 7 450 does have one advantage in the database: its integrated Radeon 860M graphics. The Threadripper 9980X has no integrated graphics, so any system using it requires a discrete GPU. For mobile users who need a simple all-in-one processor with display output, the Ryzen AI 7 450 provides that capability. However, in terms of raw CPU benchmark scores, there is no test where the mobile part wins.

Architecture Differences

Both processors use the Zen 5 architecture and are manufactured by TSMC on a 4 nm process node. The similarities end there. The Ryzen AI 7 450, codenamed Gorgon Point, belongs to the Ryzen AI 400 generation that mixes Zen 5 and Zen 5c cores. It has 8 cores, 16 threads, a 2.00 GHz base clock, and a 5.10 GHz boost clock. Its thermal design power is 28 watts, which is exceptionally low for an 8-core part. The chip uses AMD Socket FP8 and features a die size of 195 mm². Its cache hierarchy includes 80 KB of L1 per core, 1 MB of L2 per core, and 8 MB of shared L3 cache.

The Threadripper 9980X, codenamed Shimada Peak, belongs to the 9000 series and the Ryzen Threadripper generation. It has 64 cores and 128 threads, with a 3.20 GHz base clock and a 5.40 GHz boost clock. Its thermal design power is 350 watts, a massive increase that reflects the much larger silicon. The chip uses AMD Socket sTR5 and is composed of 8 separate dies, each measuring 70.6 mm², for a total die area that dwarfs the mobile part. The transistor count is listed at 66,520 million. Cache capacities are dramatically different: 64 KB of L1 per core, 1 MB of L2 per core, and a staggering 256 MB of shared L3 cache, which is 32 times the L3 found on the Ryzen AI 7 450.

Memory support also differs. The Ryzen AI 7 450 supports DDR5 and LPDDR5X in a dual-channel configuration, delivering 89.6 GB/s of bandwidth. The Threadripper 9980X supports DDR5 in a quad-channel configuration, delivering 204.8 GB/s, which is more than double the mobile part's bandwidth. Both support ECC memory. PCIe connectivity diverges sharply: the Ryzen AI 7 450 provides Gen 4 with 16 lanes, while the Threadripper 9980X provides Gen 5 with 80 lanes. The Threadripper has an unlocked multiplier for overclocking, whereas the Ryzen AI 7 450 is locked. The mobile part includes an integrated GPU, while the Threadripper does not. These architectural differences explain the benchmark gaps: the Threadripper 9980X has 8 times the cores, 8 times the threads, 32 times the L3 cache, more than double the memory bandwidth, and a 350-watt power budget to feed them.

FAQ

Q: Which processor is faster in single-core performance?

A: The AMD Ryzen Threadripper 9980X is faster in every single-core test. In Cinebench R23 single-core, it scores 18427 versus 2038, an 88.9% difference. In PassMark single-thread, it scores 4537 versus 3901, a 14% difference.

Q: How large is the multi-core performance gap between these two chips?

A: The Threadripper 9980X leads by at least 80% in every multi-core test. Cinebench R23 multi-core shows 130529 versus 18316, an 86% gap. PassMark multi-thread shows 141641 versus 26350, an 81.4% gap. The largest differences are around 90% in PassMark extended instructions and floating point math.

Q: Can the Ryzen AI 7 450 be used in a desktop workstation?

A: The database lists the Ryzen AI 7 450 as a mobile processor with an AMD Socket FP8. It has a 28-watt thermal design power and integrated Radeon 860M graphics. The Threadripper 9980X is the desktop workstation part with a 350-watt TDP and no integrated graphics.

Q: What cache capacity does each processor have?

A: The Ryzen AI 7 450 has 80 KB of L1 per core, 1 MB of L2 per core, and 8 MB of L3. The Threadripper 9980X has 64 KB of L1 per core, 1 MB of L2 per core, and 256 MB of L3.

Q: Which chip supports more memory bandwidth?

A: The Threadripper 9980X supports quad-channel DDR5 with 204.8 GB/s. The Ryzen AI 7 450 supports dual-channel DDR5 and LPDDR5X with 89.6 GB/s.

Q: Does the Threadripper 9980X have integrated graphics?

A: No, the Threadripper 9980X lists integrated graphics as N/A. The Ryzen AI 7 450 includes Radeon 860M integrated graphics.

Head-to-Head Benchmarks

The biggest wins for the Threadripper 9980X come in heavily parallel workloads that scale with core count and cache size. PassMark floating point math shows a 559003 score against 54447, a 90.3% advantage. PassMark extended instructions show 228959 versus 22400, a 90.2% gap. Data encryption results in 157137 versus 16247, a 89.7% difference. Integer math shows 872071 versus 88531, a 89.8% gap. Data compression shows 2974534 versus 315906, a 89.4% difference. These four tests all exceed 89% superiority for the desktop part.

The Cinebench suite confirms the pattern. Cinebench R23 multi-core shows 130529 versus 18316, an 86% gap. Cinebench R15 multi-core shows 13157 versus 2713, a 79.4% gap. PassMark multi-thread shows 141641 versus 26350, an 81.4% gap. PassMark physics shows 8001 versus 1578, an 80.3% gap. Random string sorting shows 292083 versus 35648, a 87.8% gap. Find prime numbers shows 769 versus 89, an 88.4% gap.

Single-core tests show a much smaller but still decisive lead. Cinebench R23 single-core shows 18427 versus 2038, an 88.9% gap, which is surprisingly large for a single-threaded test. Cinebench R15 single-core shows 1857 versus 215, an 88.4% gap. PassMark single-thread shows 4537 versus 3901, a 14% gap, which is the closest result in the entire head-to-head table.

The database records 15 wins for the Threadripper 9980X and zero for the Ryzen AI 7 450. The average benchmark score for the Threadripper 9980X is 321753, while the Ryzen AI 7 450 averages 39485. The nearest rivals for the Threadripper 9980X include the AMD Ryzen Threadripper PRO 9985WX with an average score of 320749 and a 0.3% delta, the Intel Xeon 6781P at 315524 with a 2% delta, and the AMD EPYC 9575F at 311774 with a 3.2% delta. The Ryzen AI 7 450's nearest rivals include the AMD Ryzen 7 PRO 8840HS at 39603 with a -0.3% delta, the AMD Ryzen 7 PRO 8845HS at 39325 with a 0.4% delta, and the AMD Ryzen 7 9800X3D at 39768 with a -0.7% delta. These rival comparisons show that each processor competes in its own performance tier, with the Threadripper 9980X positioned among workstation-class silicon and the Ryzen AI 7 450 among efficient mobile processors. The head-to-head data confirms that the Threadripper 9980X is the clear performance winner, while the Ryzen AI 7 450 offers a low-power mobile alternative with integrated graphics.