AMD Ryzen 7 5825U vs AMD Ryzen AI 5 340 Comparison

AMD Ryzen AI 5 340 vs AMD Ryzen 7 5825U: A generational leap, but not in every metric.

The AMD Ryzen AI 5 340 and AMD Ryzen 7 5825U represent two distinct eras of AMD’s mobile processor lineup. The former is a 2025 release built on the modern Zen 5 architecture, while the latter is a 2022 chip based on Zen 3. The data in the database shows a clear overall winner in the Ryzen AI 5 340, but a closer look reveals specific workloads where the older Ryzen 7 5825U retains an edge. This analysis walks through benchmark results, architectural differences, and the practical implications for users.

Head-to-Head Benchmarks

The benchmark suite recorded in the database covers 17 tests, with the Ryzen AI 5 340 winning 15 of them. The margins are often substantial, particularly in single-threaded workloads where the newer architecture demonstrates a commanding lead.

In Cinebench R23 single-core, the Ryzen AI 5 340 scores 1915.5 against 1452 for the Ryzen 7 5825U, a difference of 31.9%. This is the largest single-core gap in the entire comparison and highlights the per-core efficiency of Zen 5. Geekbench single-core shows a similar story, with the Ryzen AI 5 340 scoring 2140 versus 1618, a 32.3% advantage. The Cinebench R15 single-core test is closer, with the Ryzen AI 5 340 ahead by 4.6% (242.6 vs 232).

Multi-core performance also favors the newer chip, though the margins vary. In Cinebench R23 multi-core, the Ryzen AI 5 340 scores 12532 against 10152, a 23.4% lead. Geekbench multi-core shows a 25.8% advantage (9165 vs 7288). Cinebench R15 multi-core is tighter, with only a 9% difference (1915 vs 1757). The PassMark multi-thread test shows a 7.6% lead for the Ryzen AI 5 340 (19506 vs 18131).

The Ryzen AI 5 340 also excels in several specialized PassMark subtests. In the find prime numbers test, it scores 72 versus 48, a 50% advantage. The physics test shows a 41.5% lead (1095 vs 774). Extended instructions score 16440 versus 14394, a 14.2% difference. Single-thread performance in PassMark is 3683 versus 3053, a 20.6% lead. Random string sorting favors the Ryzen AI 5 340 by 6.1% (24970 vs 23539). Floating point math is closer, with the new chip ahead by 3.9% (39967 vs 38482). Data compression shows a modest 3.5% lead (229796 vs 221938).

However, the Ryzen 7 5825U wins two tests, and they are notable. In PassMark integer math, the older chip scores 72577 versus 63078 for the Ryzen AI 5 340, a 13.1% advantage. This is a significant reversal and suggests that the Zen 3 core, with its higher thread count, handles certain integer operations more efficiently. The other win for the Ryzen 7 5825U is in data encryption, where it scores 14088 versus 11470, an 18.6% lead. This is the largest margin of victory for the older chip in any test.

Overall, the Ryzen AI 5 340 has an average benchmark score of 25981, placing it at the 78th percentile of all CPUs. The Ryzen 7 5825U has an average score of 25446, also at the 78th percentile. The difference in average score is only 2.1%, but the distribution of wins heavily favors the newer silicon.

Architecture Differences

The two processors are separated by three generations of AMD’s design philosophy. The Ryzen AI 5 340 uses the Zen 5 architecture, codenamed Krackan Point, while the Ryzen 7 5825U uses Zen 3, codenamed Barcelo. The manufacturing process is a key differentiator: the Ryzen AI 5 340 is built on TSMC’s 4 nm node, compared to the 7 nm node used for the Ryzen 7 5825U. This process shrink is a primary driver of the efficiency and clock speed gains seen in the newer chip.

Core counts differ, though not in the way one might expect. The Ryzen AI 5 340 has 6 cores and 12 threads, while the Ryzen 7 5825U has 8 cores and 16 threads. Despite having two fewer cores, the Ryzen AI 5 340 wins most multi-threaded tests, which underscores the per-core performance advantage of Zen 5.

Cache configurations also tell a story. The Ryzen AI 5 340 has 80 KB of L1 cache per core and 1 MB of L2 cache per core, with 8 MB of shared L3 cache. The Ryzen 7 5825U has 64 KB of L1 per core, 512 KB of L2 per core, and a larger 16 MB of shared L3 cache. The newer chip’s larger per-core L1 and L2 caches help reduce latency for individual threads, while the older chip’s larger L3 pool benefits workloads that share data across cores.

Memory support is another major divide. The Ryzen AI 5 340 supports DDR5 and LPDDR5X memory with a bandwidth of 89.6 GB/s, while the Ryzen 7 5825U supports DDR4 with a bandwidth of 51.2 GB/s. The newer chip’s memory bandwidth is 43% higher, which contributes to its advantage in memory-sensitive tasks. The Ryzen 7 5825U supports ECC memory, while the Ryzen AI 5 340 does not.

PCIe connectivity differs as well. The Ryzen AI 5 340 offers PCIe Gen 4 with 16 lanes, while the Ryzen 7 5825U offers PCIe Gen 3 with 16 lanes. The newer standard doubles the bandwidth per lane, which matters for NVMe storage and discrete GPUs.

The integrated graphics are also different. The Ryzen AI 5 340 includes Radeon 840M, while the Ryzen 7 5825U includes Radeon Vega 8. The database does not provide direct graphics benchmarks, but the architecture change from Vega to RDNA-class integrated graphics typically brings efficiency improvements.

Die size and transistor count are notable. The Ryzen AI 5 340 has a die size of 195 mm², and the transistor count is not listed. The Ryzen 7 5825U has a die size of 180 mm² and contains 10,700 million transistors. The newer chip’s slightly larger die on a denser 4 nm process suggests more complex logic per area.

Power and thermal targets differ significantly. The Ryzen AI 5 340 has a TDP of 28 watts, while the Ryzen 7 5825U has a TDP of 15 watts. This 13-watt difference means the newer chip draws more power under load, but it also delivers substantially higher performance per clock. The older chip is designed for lower-power, fanless or thin-and-light designs, while the newer chip targets more performance-oriented ultrabooks.

The Verdict

The benchmark data is clear: the AMD Ryzen AI 5 340 is the faster processor in nearly all scenarios. If the priority is single-threaded responsiveness, the new chip wins decisively. In Geekbench single-core, it is 32.3% ahead. In Cinebench R23 single-core, it is 31.9% ahead. These are not marginal gains; they represent a generational leap in per-core capability.

For multi-threaded productivity, the Ryzen AI 5 340 also leads, despite having two fewer cores. A 23.4% lead in Cinebench R23 multi-core and a 25.8% lead in Geekbench multi-core are significant. Users running video encoding, 3D rendering, or compilation workloads will see a tangible improvement with the newer chip.

The Ryzen 7 5825U retains some relevance in specific niches. Its 13.1% lead in PassMark integer math and 18.6% lead in data encryption indicate that certain algorithms, particularly those that scale well with additional cores and a larger L3 cache, still favor the older design. The older chip’s support for ECC memory and its lower 15-watt TDP make it a candidate for embedded or low-power applications where reliability and power efficiency are prioritized over raw speed.

The Ryzen AI 5 340’s higher memory bandwidth (89.6 GB/s vs 51.2 GB/s) and newer PCIe Gen 4 support make it the better foundation for a modern laptop. DDR5 memory and faster storage interfaces will keep the system relevant for years. The 28-watt TDP is higher, but the performance gains justify the extra power draw in most mobile scenarios.

Users who already own a Ryzen 7 5825U system may not need to upgrade if their workloads are dominated by integer math or encryption. However, for anyone buying a new laptop today, the Ryzen AI 5 340 is the stronger choice based on the recorded measurements.

Specification Differences

The two processors differ in several key specifications, as recorded in the database:

• Cores: AMD Ryzen AI 5 340 has 6 cores; AMD Ryzen 7 5825U has 8 cores.
• Threads: AMD Ryzen AI 5 340 has 12 threads; AMD Ryzen 7 5825U has 16 threads.
• Base Clock: AMD Ryzen AI 5 340 has 2.00 GHz; AMD Ryzen 7 5825U has 2000.00 MHz (2.00 GHz).
• Boost Clock: AMD Ryzen AI 5 340 has 4.80 GHz; AMD Ryzen 7 5825U has 4.50 GHz.
• TDP: AMD Ryzen AI 5 340 has 28 W; AMD Ryzen 7 5825U has 15 W.
• Socket: AMD Ryzen AI 5 340 uses AMD Socket FP8; AMD Ryzen 7 5825U uses AMD Socket FP6.
• Architecture: AMD Ryzen AI 5 340 uses Zen 5; AMD Ryzen 7 5825U uses Zen 3.
• Codename: AMD Ryzen AI 5 340 is Krackan Point; AMD Ryzen 7 5825U is Barcelo.
• Process Node: AMD Ryzen AI 5 340 is 4 nm; AMD Ryzen 7 5825U is 7 nm.
• Die Size: AMD Ryzen AI 5 340 is 195 mm²; AMD Ryzen 7 5825U is 180 mm².
• L1 Cache: AMD Ryzen AI 5 340 has 80 KB per core; AMD Ryzen 7 5825U has 64 KB per core.
• L2 Cache: AMD Ryzen AI 5 340 has 1 MB per core; AMD Ryzen 7 5825U has 512 KB per core.
• L3 Cache: AMD Ryzen AI 5 340 has 8 MB; AMD Ryzen 7 5825U has 16 MB.
• Memory Support: AMD Ryzen AI 5 340 supports DDR5 and LPDDR5X; AMD Ryzen 7 5825U supports DDR4.
• Memory Bandwidth: AMD Ryzen AI 5 340 has 89.6 GB/s; AMD Ryzen 7 5825U has 51.2 GB/s.
• ECC Memory: AMD Ryzen AI 5 340 does not support it; AMD Ryzen 7 5825U supports it.
• PCIe: AMD Ryzen AI 5 340 has Gen 4, 16 lanes; AMD Ryzen 7 5825U has Gen 3, 16 lanes.
• Integrated Graphics: AMD Ryzen AI 5 340 has Radeon 840M; AMD Ryzen 7 5825U has Radeon Vega 8.
• Release Date: AMD Ryzen AI 5 340 launched on 2025-01-05; AMD Ryzen 7 5825U launched on 2022-01-05.
• Transistors: AMD Ryzen AI 5 340 has no listed count; AMD Ryzen 7 5825U has 10,700 million.

FAQ

Q: Which processor has more cores?

A: The AMD Ryzen 7 5825U has 8 cores and 16 threads, while the AMD Ryzen AI 5 340 has 6 cores and 12 threads.

Q: Is the Ryzen AI 5 340 faster in single-core performance?

A: Yes. In Cinebench R23 single-core, the Ryzen AI 5 340 scores 1915.5 versus 1452 for the Ryzen 7 5825U, a 31.9% advantage. Geekbench single-core shows a 32.3% lead (2140 vs 1618).

Q: Does the Ryzen 7 5825U win any benchmarks?

A: The Ryzen 7 5825U wins two tests: PassMark integer math (72577 vs 63078, a 13.1% lead) and PassMark data encryption (14088 vs 11470, an 18.6% lead).

Q: What is the difference in memory bandwidth?

A: The Ryzen AI 5 340 has a memory bandwidth of 89.6 GB/s, while the Ryzen 7 5825U has 51.2 GB/s. The newer chip’s bandwidth is 43% higher.

Q: Which processor has a smaller manufacturing process?

A: The Ryzen AI 5 340 is built on a 4 nm process, while the Ryzen 7 5825U uses a 7 nm process.

Q: What are the TDP ratings for each chip?

A: The Ryzen AI 5 340 has a TDP of 28 watts, and the Ryzen 7 5825U has a TDP of 15 watts.

Q: Which chip supports ECC memory?

A: Only the Ryzen 7 5825U supports ECC memory. The Ryzen AI 5 340 does not list ECC support.