AMD Ryzen AI 7 450G vs Intel Core i9-13900 Comparison

The AMD Ryzen AI 7 450G and the Intel Core i9-13900 make for an unusual comparison: one is a recent compact desktop part built on a leading-edge node, the other a 24-core Raptor Lake flagship released back in 2023 with a launch MSRP of $549. The recorded data shows a near-perfect dead heat in single-thread responsiveness, yet a crushing Intel advantage in every throughput-oriented test. That tension, identical responsiveness versus lopsided heavy-workload results, is what makes this matchup worth examining closely.

Where Each One Wins

The Intel Core i9-13900 wins nine of the eleven recorded head-to-head benchmarks, and every one of those wins comes in a test that scales across many threads. Data compression, encryption, prime finding, floating point math, integer math, physics simulation, string sorting, and the overall multi-thread rating all land firmly in Intel's column. The margins are not subtle: 46.3 percent ahead in encryption, 47.1 percent in floating point math, 53.2 percent in prime number finding. With 24 cores and 32 threads against 8 cores and 16 threads, that outcome follows the raw core-count arithmetic almost exactly.

The AMD Ryzen AI 7 450G wins the two single-thread entries, though "wins" is generous phrasing: both chips post exactly 4309 in PassMark single-thread, and the database awards the tie to AMD. So the honest split is nine wins for Intel and two dead-level results for AMD. Where the 450G genuinely holds ground is responsiveness: launching applications, browser snappiness, and lightly threaded tasks should feel indistinguishable between the two, while anything that saturates all cores favors the i9 by wide margins.

There is also a secondary dimension the benchmark list hints at. The 450G carries the Radeon 860M integrated graphics and LPDDR5X memory support, while the i9 ships with UHD Graphics 770. The recorded data includes no GPU benchmarks, so no performance claims can be made, but the platform features alone suggest different intended builds.

Architecture Differences

These two processors come from opposite design philosophies. The Ryzen AI 7 450G, codename Gorgon Point, is part of the Ryzen AI 400 generation mixing Zen 5 and Zen 5c cores. It is fabbed by TSMC on a 4 nm process, carries an unlocked multiplier, and fits Socket AM5. The Core i9-13900 is Raptor Lake-S on Intel's own 10 nm process, fits Socket 1700, and has a locked multiplier.

The core topology is the defining divergence: 8 cores and 16 threads for AMD versus 24 cores and 32 threads for Intel. Cache differs sharply too. Both share 80 KB of L1 per core, but Intel doubles L2 to 2 MB per core and provides 36 MB of shared L3, against AMD's 1 MB per core of L2 and 8 MB of L3. For sustained heavily threaded workloads, that cache disparity compounds the core-count gap.

Memory and I/O also split cleanly. AMD supports DDR5 and LPDDR5X with a stated 89.6 GB/s of bandwidth over a dual-channel bus, while Intel supports DDR4 and DDR5 with no bandwidth figure recorded. On PCIe, Intel offers Gen 5 with 16 CPU lanes against AMD's Gen 4 with 12 CPU lanes, which matters for a fast discrete GPU or storage. Both support ECC memory. Base clock sits at 2.00 GHz for both, but Intel boosts higher at 5.60 GHz versus 5.10 GHz for AMD. Both carry a 65 W TDP rating, an interesting parity given the vastly different core counts. The 450G's die is smaller at 195 mm² against 257 mm² for the i9.

Head-to-Head Benchmarks

Walking through the recorded results, Intel's dominance is consistent and large. In PassMark multi-thread, the i9 scores 45680 against 30422 for the 450G, a 33.4 percent gap. Data compression lands at 577285 versus 402831, 30.2 percent apart. Integer math shows 176107 against 99732 (43.4 percent), and floating point math shows 120492 against 63683 (47.1 percent).

The raw-compute tests are where the gap peaks. Find prime numbers scores 186 for Intel versus 87 for AMD, a 53.2 percent deficit for the 450G. Encryption is nearly as lopsided: 35242 versus 18937, 46.3 percent in Intel's favor. Physics, often a proxy for game-simulation and physics-heavy workloads, goes to Intel 2484 to 1440, 42 percent apart. String sorting (64396 versus 42663, 33.7 percent) and extended instructions (32760 versus 28223, 13.8 percent) complete the pattern.

Then comes the anomaly. Single-thread: 4309 for both. Not close, identical. The 450G's newer Zen 5-class cores at 5.10 GHz match what the i9's best cores deliver at 5.60 GHz, which suggests markedly better per-clock efficiency on AMD's side. Curiously, the i9's Cinebench and Geekbench results exist in the database (37931 multi-core and 5355 single-core in R23, 21164 and 2604 in Geekbench), but no matching runs are recorded for the 450G, so those suites cannot anchor a direct comparison here.

The aggregate picture still favors AMD slightly: average benchmark score of 63331 versus 60676, and a percentile ranking of 93 against 92. The database situates the 450G near the Intel Core Ultra 7 265HX (0.2 percent apart) and Core i7-13790F (0.4 percent), while the i9 sits near the Xeon Gold 6338T (0.2 percent), Ryzen 7 8745HX (1 percent), Ryzen 9 7945HX (1 percent), and Core i9-14900F (1.1 percent).

The Verdict

The data supports a clear division. For sustained multi-core workloads, rendering, compilation, physics simulation, compression, encryption, the Core i9-13900 is decisively the stronger choice, winning every recorded throughput test by 13.8 to 53.2 percent. Its 24 cores, 32 threads, larger cache pool, Gen 5 PCIe with 16 lanes, and DDR4 backward compatibility all reinforce that direction.

The Ryzen AI 7 450G argues for itself on a different axis: identical single-thread performance, a far more advanced 4 nm process, an unlocked multiplier for overclocking, LPDDR5X support, and newer-generation integrated graphics in the Radeon 860M. Buyers who care about responsiveness, power-efficient compact builds on AM5, and tuning headroom get a competitive package whose overall database standing (93rd percentile) actually edges the i9's (92nd). It cannot match the i9's throughput, but it does not need to for the workloads it targets.

FAQ

Q: Which CPU is faster in single-threaded tasks?

A: They are exactly equal in the recorded data, both scoring 4309 in PassMark single-thread. The database credits the tie to the AMD Ryzen AI 7 450G, but there is no measurable difference.

Q: How large is the multi-core gap?

A: The Intel Core i9-13900 scores 45680 in PassMark multi-thread versus 30422 for the Ryzen AI 7 450G, a 33.4 percent advantage for Intel. Individual tests range from 13.8 to 53.2 percent in Intel's favor.

Q: Can both processors be overclocked?

A: No. The Ryzen AI 7 450G has an unlocked multiplier; the Core i9-13900 does not.

Q: What memory does each support?

A: The 450G supports DDR5 and LPDDR5X with 89.6 GB/s of bandwidth. The i9-13900 supports DDR4 and DDR5.

Q: Which has better PCIe support?

A: The i9-13900 offers PCIe Gen 5 with 16 CPU lanes. The 450G offers Gen 4 with 12 CPU lanes.

Q: Do they have the same TDP rating?

A: Yes, both are rated at 65 W despite the i9 having three times the core count.

Specification Differences

| Field | AMD Ryzen AI 7 450G | Intel Core i9-13900 |

|---|---|---|

| Cores | 8 | 24 |

| Threads | 16 | 32 |

| Boost Clock | 5.10 GHz | 5.60 GHz |

| Socket | AMD Socket AM5 | Intel Socket 1700 |

| Architecture | Zen 5 / Zen 5c | Raptor Lake-S |

| Generation | Ryzen AI 400 | Core 13th Gen |

| Process Node | 4 nm (TSMC) | 10 nm (Intel) |

| Die Size | 195 mm² | 257 mm² |

| L2 Cache | 1 MB per core | 2 MB per core |

| L3 Cache | 8 MB | 36 MB (shared) |

| Memory Support | DDR5, LPDDR5X | DDR4, DDR5 |

| Memory Bandwidth | 89.6 GB/s | Not recorded |

| PCIe | Gen 4, 12 lanes | Gen 5, 16 lanes |

| Integrated Graphics | Radeon 860M | UHD Graphics 770 |

| Multiplier Unlocked | Yes | No |

| Launch MSRP | Not recorded | $549 |

| Release Date | 2026-02-28 | 2023-01-03 |