AMD Ryzen 9 270 vs AMD Ryzen AI 7 345 Comparison

Head-to-Head Benchmarks

The head-to-head comparison between the AMD Ryzen 9 270 and the AMD Ryzen AI 7 345 is lopsided in nearly every metric, but the two exceptions are revealing. The Ryzen 9 270 wins 13 of the 15 recorded benchmark comparisons, while the Ryzen AI 7 345 claims only 2 wins. Those two wins are both in single-threaded PassMark tests, where the Ryzen AI 7 345 scores 3875 against 3784 for the Ryzen 9 270, a delta of 2.3%. That is a narrow margin, but it signals that the newer core design in the Ryzen AI 7 345 has a per-thread performance edge, even if the rest of the benchmark suite tells a different story.

The biggest gap appears in Cinebench R23 multi-core, where the Ryzen 9 270 scores 26438 against 11461 for the Ryzen AI 7 345, a delta of 130.7%. That is more than double the score. The single-core variant of the same test also favors the Ryzen 9 270, with 3732 versus 1818, a delta of 105.3%. The Ryzen 9 270 also leads in Cinebench R15 multi-core with 2664 versus 1712, a delta of 55.6%, and in Cinebench R15 single-core with 376 versus 271, a delta of 38.7%.

The PassMark suite shows consistent advantages for the Ryzen 9 270 across different workload types. Data compression favors the Ryzen 9 270 at 351398 versus 237484, a delta of 48%. Data encryption shows a larger relative gap, 20852 versus 11814, a delta of 76.5%. Extended instructions, a proxy for AVX-style workloads, land at 26729 versus 17003, a delta of 57.2%. Integer math scores 98266 versus 63475, a delta of 54.8%. Floating point math scores 60122 versus 42621, a delta of 41.1%. Random string sorting shows a 68.3% delta, with 42819 versus 25435. Even the smallest PassMark deltas remain substantial: find prime numbers scores 88 versus 62, a delta of 41.9%, and the multithread test scores 29089 versus 19927, a delta of 46%. The physics test, at 1365 versus 1089, has the smallest overall delta at 25.3%.

The data suggests that the Ryzen 9 270 delivers roughly double the multi-threaded rendering performance in Cinebench R23, while the Ryzen AI 7 345 only manages a narrow win in one specific single-threaded PassMark test. The average benchmark score reflects the overall split: the Ryzen 9 270 sits at 40246, the Ryzen AI 7 345 at 29461. The Ryzen 9 270 also ranks in the 87th percentile against all CPUs, while the Ryzen AI 7 345 ranks in the 81st percentile.

FAQ

Q: Which CPU wins more benchmark comparisons?

A: The AMD Ryzen 9 270 wins 13 of the 15 head-to-head benchmark comparisons. The AMD Ryzen AI 7 345 wins the remaining 2, both of which are PassMark single-threaded tests.

Q: How large is the multi-core performance gap in Cinebench R23?

A: The Ryzen 9 270 scores 26438 in Cinebench R23 multi-core, while the Ryzen AI 7 345 scores 11461. That is a delta of 130.7%, meaning the Ryzen 9 270 delivers more than double the multi-core rendering score.

Q: Does the Ryzen AI 7 345 win in any single-threaded test?

A: Yes. In PassMark single-threaded tests, the Ryzen AI 7 345 scores 3875 against 3784 for the Ryzen 9 270, a delta of 2.3%. However, in Cinebench R23 single-core, the Ryzen 9 270 wins with 3732 versus 1818, a delta of 105.3%.

Q: How do the two CPUs compare in overall average benchmark score?

A: The Ryzen 9 270 has an average benchmark score of 40246, while the Ryzen AI 7 345 has an average benchmark score of 29461. The Ryzen 9 270 also ranks higher in percentile, at 87 versus 81.

Q: What is the smallest performance gap between the two CPUs?

A: The smallest gap is in the PassMark single-threaded tests, where the Ryzen AI 7 345 leads by 2.3%. The next smallest is the PassMark physics test, where the Ryzen 9 270 leads by 25.3%.

Q: Are there any benchmark categories where the Ryzen AI 7 345 is competitive?

A: Outside of the PassMark single-threaded tests, the data does not show a close contest. The Ryzen 9 270 leads every other recorded benchmark by at least 25.3%, and several by more than 100%.

Where Each One Wins

The Ryzen 9 270 is the dominant part for heavily threaded workloads. Cinebench R23 multi-core, with a delta of 130.7%, is the clearest example. The same pattern holds for Cinebench R15 multi-core, where the delta is 55.6%, and for PassMark multithread, where the delta is 46%. Any workload that scales across cores, such as rendering, video encoding, or scientific simulation, will favor the Ryzen 9 270 by a wide margin. Its 8 cores and 16 threads, combined with a boost clock of 5.20 GHz, provide the raw throughput that the 6-core, 12-thread Ryzen AI 7 345 cannot match.

The Ryzen 9 270 also wins every PassMark compute category except the single-threaded ones. Data encryption shows a 76.5% delta, random string sorting a 68.3% delta, and extended instructions a 57.2% delta. These are not marginal differences; they represent a consistent structural advantage across integer, floating point, and specialized instruction workloads.

The Ryzen AI 7 345, by contrast, wins only in PassMark single-threaded performance, and only by 2.3%. That narrow edge suggests that its Zen 5 / Zen 5c core architecture has a higher per-thread throughput in certain lightweight, latency-sensitive tasks. For applications that depend on a single thread and do not benefit from additional cores, the Ryzen AI 7 345 may feel slightly snappier, but the margin is small. The Ryzen 9 270 still wins Cinebench single-core tests by a large margin, which complicates the picture. The PassMark single-threaded win appears to be workload-specific rather than a general single-core advantage.

For users prioritizing sustained multi-core performance, the Ryzen 9 270 is the clear choice. For users who value the lowest-power mobile part with a slightly higher PassMark single-threaded score, the Ryzen AI 7 345 has a narrow niche, but the benchmark data does not show any other area where it takes the lead.

Specification Differences

The two processors share the same socket, AMD Socket FP8, and both target the mobile market segment. Both are produced by TSMC on a 4 nm process node. Both support DDR5 memory in a dual-channel configuration, with identical memory bandwidth of 89.6 GB/s. Neither supports ECC memory, and neither has an unlocked multiplier.

The differences are substantial. The Ryzen 9 270 has 8 cores and 16 threads, while the Ryzen AI 7 345 has 6 cores and 12 threads. Base clock speeds differ: the Ryzen 9 270 runs at 4.00 GHz, the Ryzen AI 7 345 at 2.00 GHz. Boost clocks also differ, with the Ryzen 9 270 reaching 5.20 GHz and the Ryzen AI 7 345 reaching 4.60 GHz. The thermal design power is higher for the Ryzen 9 270 at 45 W, compared to 28 W for the Ryzen AI 7 345.

Cache configurations are different. The Ryzen 9 270 has 64 KB of L1 per core, 1 MB of L2 per core, and 16 MB of shared L3. The Ryzen AI 7 345 has 80 KB of L1 per core, 1 MB of L2 per core, and only 4 MB of L3. The Ryzen 9 270 offers much more shared L3 cache, which can be significant for workloads with large working sets.

Memory support also differs. The Ryzen 9 270 supports DDR5, while the Ryzen AI 7 345 supports both DDR5 and LPDDR5X. PCIe lane counts differ as well: the Ryzen 9 270 provides 20 CPU-only PCIe Gen 4 lanes, while the Ryzen AI 7 345 provides 14. The integrated graphics are different, with the Ryzen 9 270 using the Radeon 780M and the Ryzen AI 7 345 using the Radeon 840M.

Transistor count and die size are listed for the Ryzen 9 270 at 25,000 million transistors and 178 mm², while these fields are not recorded for the Ryzen AI 7 345. The release dates are close, with the Ryzen 9 270 released on 2025-01-05 and the Ryzen AI 7 345 on 2025-01-14. The part numbers differ: 100-000001836 for the Ryzen 9 270 and 100-000002122 for the Ryzen AI 7 345.

Architecture Differences

The Ryzen 9 270 uses the Zen 4 architecture under the Hawk Point codename, with a generation entry of "Ryzen 9 (Zen 4 (Hawk Point))". The Ryzen AI 7 345 uses the Krackan Point codename under the Ryzen AI 300 generation, with a hybrid "Zen 5 / Zen 5c" core configuration. The recorded architecture field is null for the Ryzen AI 7 345, but the generation string explicitly identifies the mixed Zen 5 and Zen 5c design.

The process node is identical at 4 nm from TSMC, so the architectural differences come from the core designs and cache hierarchy rather than the manufacturing process. The Ryzen AI 7 345 has a larger L1 cache per core at 80 KB, compared to 64 KB for the Ryzen 9 270. L2 per core is the same at 1 MB. The L3 cache is dramatically different: 16 MB shared on the Ryzen 9 270 versus 4 MB on the Ryzen AI 7 345. The Ryzen AI 7 345's hybrid core strategy, combining Zen 5 and Zen 5c cores, likely explains its lower TDP of 28 W, while the Ryzen 9 270's uniform Zen 4 design runs at 45 W.

The Ryzen 9 270 has a higher base clock of 4.00 GHz and a higher boost clock of 5.20 GHz, while the Ryzen AI 7 345 operates at 2.00 GHz base and 4.60 GHz boost. The Ryzen AI 7 345's lower base clock is consistent with a power-optimized hybrid design, but its PassMark single-threaded score of 3875 shows that the Zen 5 / Zen 5c cores can reach competitive per-thread performance despite the lower clock speed. The Ryzen 9 270's higher clocks and larger L3 cache align with its strong multi-core and compute benchmark results.

The integrated graphics differ, with the Radeon 780M on the Ryzen 9 270 and the Radeon 840M on the Ryzen AI 7 345. The Ryzen AI 7 345 also adds LPDDR5X memory support, which is not listed for the Ryzen 9 270. The PCIe lane allocation is lower on the Ryzen AI 7 345 at 14 lanes versus 20 on the Ryzen 9 270.

The Verdict

The benchmark data points to a clear split in use cases. The AMD Ryzen 9 270 delivers substantially higher multi-threaded performance, with a 130.7% lead in Cinebench R23 multi-core and a 55.6% lead in Cinebench R15 multi-core. It also leads in every PassMark compute test except the single-threaded pair. Its 8-core, 16-thread configuration, 5.20 GHz boost clock, and 16 MB L3 cache make it the stronger choice for rendering, data compression, encryption, and math-heavy workloads. The average benchmark score of 40246, compared to 29461 for the Ryzen AI 7 345, supports that conclusion.

The AMD Ryzen AI 7 345 has one recorded advantage: a 2.3% lead in PassMark single-threaded tests. That narrow win, combined with a lower TDP of 28 W versus 45 W, makes it attractive for battery-conscious mobile designs where occasional single-threaded responsiveness matters more than sustained multi-core throughput. Its support for LPDDR5X memory and its hybrid Zen 5 / Zen 5c core layout indicate a power-oriented design, but the benchmark results do not show that it can compete with the Ryzen 9 270 in any multi-core or compute-intensive category.

The Ryzen 9 270 sits in the 87th percentile against all CPUs, while the Ryzen AI 7 345 sits in the 81st. The nearest rivals for the Ryzen 9 270 include the Intel Core i9-13905H at an average score of 40313 with a delta of 0.2%, and the AMD Ryzen 7 7700 at 40081 with a delta of 0.4%. The Ryzen AI 7 345's nearest rivals include the AMD Ryzen 7 3800X at 29447 with a delta of 0%, and the Intel Core i5-13500HX at 29270 with a delta of 0.7%. These comparisons place both CPUs in their respective performance tiers, but the gap between the two tiers is large.

Users who need maximum compute throughput should choose the Ryzen 9 270. Users who prioritize lower power draw and accept a significant multi-core deficit may find the Ryzen AI 7 345 suitable, but the recorded data shows no other benchmark category where it outperforms the Ryzen 9 270.