AMD Ryzen 9 5900XT vs Intel Core 3 305 Comparison

FAQ

Q: How do the two processors compare in overall benchmark performance?

A: The AMD Ryzen 9 5900XT records an average benchmark score of 50,718, placing it in the 90th percentile of all CPUs. The Intel Core 3 305 scores 18,302 on average, which places it in the 72nd percentile. The AMD part outperforms the Intel part by roughly 177% in average score.

Q: Which processor wins in single-threaded performance?

A: The Intel Core 3 305 wins the PassMark single-thread test with a score of 3,977, which is 12.6% higher than the AMD Ryzen 9 5900XT’s 3,474. However, in Cinebench R23 single-core, the AMD part scores 5,276 versus Intel’s 1,852, a 184.9% advantage for AMD.

Q: What are the core and thread counts for each chip?

A: The AMD Ryzen 9 5900XT has 16 cores and 32 threads. The Intel Core 3 305 has 6 cores and 6 threads, meaning it lacks simultaneous multithreading.

Q: Which processor is designed for mobile use?

A: The Intel Core 3 305 targets the mobile segment and uses the Intel BGA 1516 socket. The AMD Ryzen 9 5900XT is a desktop part for AMD Socket AM4.

Q: What memory types does each processor support?

A: The AMD Ryzen 9 5900XT supports DDR4 memory on a dual-channel bus with 51.2 GB/s bandwidth. The Intel Core 3 305 supports DDR5 and LPDDR5X on a single-channel bus with 59.7 GB/s bandwidth.

Q: Does either processor include integrated graphics?

A: The Intel Core 3 305 includes Intel Xe3 Graphics (1 Xe). The AMD Ryzen 9 5900XT has no integrated graphics, listed as N/A.

The Verdict

The benchmark data paints a clear picture: the AMD Ryzen 9 5900XT dominates nearly every workload category in this comparison. It wins 15 of the 17 recorded head-to-head tests, including all Cinebench multi-core and single-core tests, all PassMark compute tests except single-thread, and all data-heavy workloads. Its 16 cores and 32 threads provide a massive parallel processing advantage, reflected in the 184.8% lead in Cinebench R23 multi-core and the 449.8% lead in PassMark integer math.

The Intel Core 3 305 wins only two tests, both being PassMark single-thread variants, where it leads by 12.6%. This makes it the better choice for lightly threaded, single-thread-dependent tasks where raw per-core speed matters more than core count. However, that narrow advantage comes with a major caveat: in Cinebench R23 single-core, the AMD part leads by 184.9%, which contradicts the PassMark result. The data suggests the PassMark single-thread test favors the Intel architecture, while the Cinebench single-core test heavily favors AMD’s higher clock speed and Zen 3 design.

For users building a desktop workstation or high-throughput system, the AMD Ryzen 9 5900XT is the only viable option given its 16-core, 32-thread configuration and 90th percentile standing. For a low-power mobile processor (15W TDP) used in thin laptops where battery life and light tasks matter, the Intel Core 3 305 fills that role, but it cannot compete on raw performance. The data shows no scenario where the Intel part wins a multi-threaded or compute-intensive benchmark.

Head-to-Head Benchmarks

The largest single win for the AMD Ryzen 9 5900XT appears in PassMark integer math, where it scores 177,566 versus Intel’s 32,295, a 449.8% difference. This is the most lopsided result in the entire comparison. Data compression follows closely: AMD scores 597,862 against Intel’s 146,857, a 307.1% lead. Random string sorting shows AMD ahead by 254.9% (62,537 versus 17,623), and data encryption shows a 243.2% advantage (37,814 versus 11,019).

In Cinebench tests, the pattern is consistent. The R23 multi-core test has AMD at 37,373 and Intel at 13,123, a 184.8% lead. The R23 single-core test has AMD at 5,276 and Intel at 1,852, a 184.9% lead. The R20 and R15 multi-core and single-core tests all show AMD ahead by roughly 184.8% to 185.5%. The AMD part also leads in PassMark floating-point math by 135.1% (99,398 versus 42,284), extended instructions by 189% (39,141 versus 13,543), and multi-thread performance by 183.8% (43,810 versus 15,439).

The only Intel wins are the PassMark single-thread and single-thread duplicate tests, both scoring 3,977 versus AMD’s 3,474, a 12.6% advantage. The smallest AMD win is in PassMark physics, where it leads by 39.1% (1,715 versus 1,233). The AMD part also wins PassMark prime number finding by 78.3% (205 versus 115).

Specification Differences

The two processors differ fundamentally in platform and design targets. The AMD Ryzen 9 5900XT uses the AMD Socket AM4, while the Intel Core 3 305 uses the Intel BGA 1516 socket, confirming desktop versus mobile positioning. The AMD part has a 105W TDP; the Intel part has a 15W TDP, reflecting their respective power envelopes.

Clock speeds differ substantially. The AMD part has a base clock of 3.30 GHz and a boost clock of 4.80 GHz. The Intel part has a base clock of 1.50 GHz and a boost clock of 4.30 GHz. The AMD part has an unlocked multiplier; the Intel part is locked.

Memory support diverges by generation. AMD supports DDR4 with dual-channel access and 51.2 GB/s bandwidth. Intel supports DDR5 and LPDDR5X with single-channel access and 59.7 GB/s bandwidth. The AMD part supports ECC memory; the Intel part does not. PCIe lane counts differ as well: AMD provides Gen 4 with 20 lanes (CPU only), while Intel provides Gen 4 with 6 lanes (CPU only).

Integrated graphics are exclusive to Intel, which includes Intel Xe3 Graphics (1 Xe). The AMD part has none. The launch MSRP for the AMD Ryzen 9 5900XT is $349, and for the Intel Core 3 305 it is $309. Release dates also differ: AMD launched on 2024-07-30, while Intel launches on 2026-04-15.

Architecture Differences

The AMD Ryzen 9 5900XT uses the Zen 3 architecture with the Vermeer codename, built on a 7 nm process at TSMC. It packs 8,300 million transistors across a die size of 2x 74 mm². Cache is organized per core: 64 KB L1 and 512 KB L2 per core, with a shared 64 MB L3 cache. This large L3 is a key strength for workloads that reuse data sets.

The Intel Core 3 305 uses the Wildcat Lake codename, built on a 3 nm process at Intel. The transistor count and die size are not recorded. Cache configuration is simpler: 192 KB L1, 2.5 MB L2, and 6 MB shared L3. The smaller cache hierarchy aligns with its 6-core, low-power design.

Core and thread counts drive the biggest architectural difference. AMD’s 16 cores and 32 threads versus Intel’s 6 cores and 6 threads means the AMD part offers more than double the cores and more than five times the threads. The Intel part has no hyperthreading, so its thread count equals its core count. This structural difference explains the consistent multi-threaded wins for AMD and the narrow single-thread PassMark advantage for Intel, which likely benefits from the newer 3 nm process and higher IPC per core in that specific test.

Where Each One Wins

The AMD Ryzen 9 5900XT wins in every multi-threaded and compute-heavy category recorded. This includes all Cinebench variants (R15, R20, R23, both multi-core and single-core), PassMark integer math, floating-point math, extended instructions, data compression, data encryption, random string sorting, prime number finding, physics, and multi-thread. Its 90th percentile ranking and average score of 50,718 place it in the upper tier of all CPUs. For desktop users running rendering, compilation, scientific computing, or heavy data processing, the data shows a decisive advantage.

The Intel Core 3 305 wins only the PassMark single-thread test, where it scores 3,977 versus AMD’s 3,474, a 12.6% edge. Its 72nd percentile ranking and average score of 18,302 indicate mid-range standing. The 15W TDP and mobile socket make it suitable for small laptops where power efficiency is critical, but the benchmark data shows it loses every multi-threaded test by at least 39.1% (PassMark physics) and often by well over 100%. Even in the single-core Cinebench tests, AMD leads by 184.9%, so the Intel single-thread win appears limited to the PassMark methodology, not a general single-thread advantage.

The use-case split is therefore clean: AMD for desktop performance and multi-threaded throughput, Intel for mobile low-power designs with a narrow single-thread PassMark advantage. No benchmark in the database shows the Intel part winning any multi-threaded or data-intensive workload.