AMD Ryzen 3 5305G vs Intel Core Ultra 5 338H Comparison

The AMD Ryzen 3 5305G and Intel Core Ultra 5 338H occupy different corners of the processor market, one a desktop part built for a mature platform, the other a mobile chip aimed at thin laptops. The recorded data shows a clear split in their intended roles, and the benchmark measurements for the Intel part, which are the only recorded scores in the database, reveal a processor that dominates in sheer compute throughput while the AMD chip counters with a higher base clock and an unlocked multiplier.

Where Each One Wins

The Intel Core Ultra 5 338H wins every recorded benchmark category in the database. This is not a close contest in any single test; the Intel chip holds a decisive advantage across both single-threaded and multi-threaded workloads. The AMD Ryzen 3 5305G, however, wins on the merits of its platform and configuration. It is a desktop processor with a 65 TDP, which allows for sustained operation in a standard desktop chassis, and it uses the AMD Socket AM4, a long-standing platform with broad compatibility. The AMD chip also features an unlocked multiplier, meaning the user can adjust the clock speed to push performance beyond its stock 4.20 boost clock. The Intel part, by contrast, is a mobile processor with a 25 TDP, locked multiplier, and a BGA socket, which is soldered to the motherboard and not upgradeable.

In terms of raw compute wins, the Intel chip takes all of them. The Cinebench suite, PassMark suite, and every individual workload measurement are in the Intel column. The AMD chip has zero recorded wins in the head-to-head data. The Intel part's wins are particularly pronounced in multi-threaded tests, where its 12 cores and 12 threads double the AMD chip's 4 cores and 8 threads. The Intel chip also wins in single-core tests, despite the AMD part's higher base clock of 4.00 GHz versus 1.90 GHz, because the Intel boost clock reaches 4.70 GHz and its architecture is more efficient per clock.

Architecture Differences

The two processors are built on fundamentally different designs. The AMD Ryzen 3 5305G uses the Zen 3 architecture, codenamed Cezanne, manufactured on a 7 nm process by TSMC. It has 4 cores and 8 threads, with a base clock of 4.00 GHz and a boost clock of 4.20 GHz. The cache layout is 64 KB of L1 per core, 512 KB of L2 per core, and 8 MB of L3 shared. The chip supports DDR4 memory in a dual-channel configuration, providing 51.2 GB/s of memory bandwidth. It uses PCIe Gen 3 with 16 lanes from the CPU and integrates Radeon Vega 6 graphics.

The Intel Core Ultra 5 338H uses the Panther Lake architecture, codenamed Panther Lake, and is manufactured on a 3 nm process by Intel. It has 12 cores and 12 threads, with a base clock of 1.90 GHz and a boost clock of 4.70 GHz. The cache is significantly larger: 192 KB of L1 per core, 2.5 MB of L2 per core, and 18 MB of shared L3. It supports LPDDR5X memory in a dual-channel configuration, delivering 136.5 GB/s of memory bandwidth, which is more than double the AMD part's bandwidth. The Intel chip uses PCIe Gen 5 with 4 lanes from the CPU and integrates Arc B370 graphics.

The transistor count and die size are recorded for the AMD chip at 10,700 million transistors and 180 mm², while these figures are not listed for the Intel part. The market segments differ as well: the AMD chip is a desktop processor, and the Intel chip is a mobile processor. The AMD part was released earlier, in February 2025, while the Intel part came later, in January 2026. Both are listed as active in production.

Head-to-Head Benchmarks

The database contains a full set of benchmark scores for the Intel Core Ultra 5 338H, while the AMD Ryzen 3 5305G has no recorded scores. This makes the comparison one-sided in the data, but the Intel measurements are extensive. In Cinebench R23 multi-core, the Intel chip scores 16,331 points, and in single-core it scores 2,044. The Cinebench R20 results show 10,213 multi-core and 1,441 single-core, while Cinebench R15 shows 2,504 multi-core and 305 single-core. These scores place the Intel part in the 84th percentile of all CPUs in the database.

The PassMark suite adds further detail. The Intel chip scores 28,717 in multi-thread and 4,180 in single-thread. In specific workloads, it scores 276,539 in data compression, 21,367 in data encryption, 23,906 in extended instructions, 304 in find prime numbers, 84,067 in floating point math, 64,934 in integer math, 2,697 in physics, and 34,082 in random string sorting.

The average benchmark score for the Intel chip is 33,989. Its nearest rivals in the database are the Intel Core Ultra 7 165H with an average score of 34,083, a delta of -0.3 percent, and the Intel Core i7-12800HX with 33,875, a delta of 0.3 percent. The AMD EPYC 4244P scores 34,220, a delta of -0.7 percent, and the Intel Xeon 6353P scores 33,844, a delta of 0.4 percent. These deltas are small, indicating that the Core Ultra 5 338H sits in a tightly contested performance band, but its position is solidly within the top tier of the database.

FAQ

Q: How many cores and threads does each processor have?

A: The AMD Ryzen 3 5305G has 4 cores and 8 threads. The Intel Core Ultra 5 338H has 12 cores and 12 threads.

Q: What is the boost clock of each processor?

A: The AMD Ryzen 3 5305G boosts to 4.20 GHz. The Intel Core Ultra 5 338H boosts to 4.70 GHz.

Q: Which processor supports faster memory?

A: The Intel Core Ultra 5 338H supports LPDDR5X with a memory bandwidth of 136.5 GB/s. The AMD Ryzen 3 5305G supports DDR4 with a memory bandwidth of 51.2 GB/s.

Q: Is the AMD Ryzen 3 5305G overclockable?

A: Yes, the AMD chip has an unlocked multiplier. The Intel Core Ultra 5 338H has a locked multiplier.

Q: What is the process node for each chip?

A: The AMD Ryzen 3 5305G is manufactured on a 7 nm process by TSMC. The Intel Core Ultra 5 338H is manufactured on a 3 nm process by Intel.

Q: What are the market segments for these processors?

A: The AMD Ryzen 3 5305G is a desktop processor. The Intel Core Ultra 5 338H is a mobile processor.

The Verdict

The data points to a straightforward conclusion: the Intel Core Ultra 5 338H is the faster processor in every measured benchmark, and by a substantial margin in multi-threaded workloads. Its 12 cores and 12 threads, combined with a 4.70 GHz boost clock and 18 MB of L3 cache, produce scores that place it in the 84th percentile of all CPUs. The AMD Ryzen 3 5305G, with its 4 cores and 8 threads, cannot match this throughput, and its lack of recorded benchmark scores in the database means it cannot be positioned against the Intel chip on measured performance.

The AMD chip does have its own advantages, but they are not in raw compute. It is a desktop part with a 65 TDP, an unlocked multiplier, and a socketed AM4 platform, which makes it suitable for a custom desktop build where the user can overclock and upgrade. The Intel chip is a mobile part with a 25 TDP, a locked multiplier, and a BGA socket, which is typical for a laptop and not user-serviceable. The choice depends on the use case: the Intel chip delivers high performance in a mobile form factor, while the AMD chip offers desktop flexibility and overclocking potential, but with a lower performance ceiling.

Specification Differences

| Specification | AMD Ryzen 3 5305G | Intel Core Ultra 5 338H |

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

| Cores | 4 | 12 |

| Threads | 8 | 12 |

| Base Clock | 4.00 GHz | 1.90 GHz |

| Boost Clock | 4.20 GHz | 4.70 GHz |

| TDP | 65 | 25 |

| Socket | AMD Socket AM4 | Intel BGA 2540 |

| Architecture | Zen 3 | Panther Lake |

| Process Node | 7 nm | 3 nm |

| Foundry | TSMC | Intel |

| L1 Cache | 64 KB (per core) | 192 KB (per core) |

| L2 Cache | 512 KB (per core) | 2.5 MB (per core) |

| L3 Cache | 8 MB | 18 MB (shared) |

| Memory Support | DDR4 | LPDDR5X |

| Memory Bandwidth | 51.2 GB/s | 136.5 GB/s |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 5, 4 Lanes (CPU only) |

| Integrated Graphics | Radeon Vega 6 | Arc B370 |

| Market Segment | Desktop | Mobile |

| Multiplier Unlocked | Yes | No |

| Release Date | 2025-02-23 | 2026-01-04 |