AMD Ryzen 9 5900X vs Intel Core 7 251TE Comparison

FAQ

Q: Which processor has more cores and threads?

A: The Intel Core 7 251TE has 24 cores and 32 threads, while the AMD Ryzen 9 5900X has 12 cores and 24 threads. The Intel part offers double the core count.

Q: How do their single-core Cinebench R23 scores compare?

A: The Intel Core 7 251TE scores 3602, which is 135.9% higher than the AMD Ryzen 9 5900X’s 1527. This is the largest single-test margin in the entire head-to-head comparison.

Q: Which CPU wins in multi-core Cinebench R23?

A: The Intel Core 7 251TE scores 25518 versus 16262 for the AMD Ryzen 9 5900X, a 56.9% advantage for Intel. Despite fewer threads, the Ryzen’s older Zen 3 architecture cannot match the Intel part’s throughput.

Q: Does the AMD Ryzen 9 5900X win any benchmark categories?

A: Yes, the AMD part wins 9 of the 15 head-to-head tests, including data compression (499968 vs 334399, a 33.1% lead), encryption (31106 vs 22176, a 28.7% lead), and integer math (140851 vs 125739, a 10.7% lead).

Q: What are the process nodes for each CPU?

A: The Intel Core 7 251TE is built on Intel’s 10 nm process, while the AMD Ryzen 9 5900X uses TSMC’s 7 nm process. The AMD chip also integrates 8,300 million transistors across two 74 mm² dies.

Q: Which CPU supports DDR5 memory?

A: Only the Intel Core 7 251TE supports both DDR4 and DDR5, with dual-channel memory and 89.6 GB/s bandwidth. The AMD Ryzen 9 5900X is limited to DDR4 and offers 51.2 GB/s.

Architecture Differences

The Intel Core 7 251TE and AMD Ryzen 9 5900X represent fundamentally different design philosophies. Intel’s part is a 24-core, 32-thread monster built on the Bartlett Lake codename, using Intel’s 10 nm process with a die size of 215 mm². AMD’s Ryzen 9 5900X uses the Zen 3 architecture (Vermeer codename), packing 12 cores and 24 threads onto two 74 mm² dies fabricated by TSMC on a 7 nm process, with 8,300 million transistors total.

Cache layouts differ sharply. The Intel chip allocates 80 KB of L1 per core, 1.25 MB of L2 per core, and a shared 36 MB L3. AMD’s design uses 64 KB of L1 per core, 512 KB of L2 per core, and a larger 64 MB L3 pool. That extra L3 capacity on AMD likely explains its strong showing in data compression and encryption workloads, which benefit from larger working sets in cache.

Memory support is another major divergence. Intel’s 251TE supports both DDR4 and DDR5 with dual-channel memory, delivering 89.6 GB/s of bandwidth. AMD’s 5900X is limited to DDR4, also dual-channel, but tops out at 51.2 GB/s. That bandwidth gap is substantial, and it shows in the Cinebench multi-core results where memory throughput often matters.

The Intel part includes integrated UHD Graphics 770, while AMD’s 5900X has no integrated graphics at all. This makes the Intel chip viable for systems without a discrete GPU. The Intel CPU also features PCIe Gen 5 with 16 lanes (CPU only), while AMD offers PCIe Gen 4. Both support ECC memory, which suits workstation use.

Power and thermal envelopes differ significantly: the Intel chip has a 45 W TDP, while AMD’s 5900X has a 105 W TDP. That gap is remarkable given that Intel still wins most Cinebench tests. The Intel part is also socketed on LGA 1700, while AMD uses AM4. Intel’s multiplier is locked; AMD’s is unlocked for overclocking. Release dates are far apart: Intel launched January 2025, AMD in November 2020.

The Verdict

Based strictly on benchmark data, the Intel Core 7 251TE is the stronger CPU for most compute-heavy workloads. It wins 6 of 15 head-to-head tests, but those wins are decisive in rendering and single-threaded tasks. The Cinebench R23 multi-core score of 25518 versus 16262 (a 56.9% edge) and the single-core score of 3602 versus 1527 (a 135.9% edge) are the most important results for general productivity and rendering. The Intel chip also leads in floating-point math (85607 vs 77700, a 10.2% advantage) and single-thread PassMark (3568 vs 3469, a 2.9% margin).

The AMD Ryzen 9 5900X wins more tests overall (9 vs 6), but its victories are concentrated in specific integer and data-processing workloads. It leads in data compression (499968 vs 334399, a 33.1% margin), data encryption (31106 vs 22176, a 28.7% margin), extended instructions (33119 vs 16974, a 48.7% margin), find prime numbers (257 vs 140, a 45.5% margin), integer math (140851 vs 125739, a 10.7% margin), multithread PassMark (39002 vs 30022, a 23% margin), random string sorting (51646 vs 39643, a 23.2% margin), physics (1994 vs 1938, a 2.8% margin), and Cinebench R15 multi-core (2695 vs 2572, a 4.6% margin).

For users prioritizing rendering, video encoding, or any workload that scales with Cinebench scores, the Intel part is the clear choice. For users working with large data sets, compression, or encryption, the AMD part’s wins suggest it handles those integer-heavy tasks better. The Intel chip’s 45 W TDP versus AMD’s 105 W TDP also makes it more suitable for compact or power-conscious builds. However, the AMD part’s larger L3 cache (64 MB vs 36 MB) and older 7 nm process may appeal to those needing raw data throughput in server-like tasks.

Specification Differences

| Specification | Intel Core 7 251TE | AMD Ryzen 9 5900X |

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

| Cores | 24 | 12 |

| Threads | 32 | 24 |

| Base clock | 1.40 GHz | 3.70 GHz |

| Boost clock | 5.40 GHz | 4.80 GHz |

| TDP | 45 W | 105 W |

| Socket | Intel Socket 1700 | AMD Socket AM4 |

| Process node | 10 nm (Intel) | 7 nm (TSMC) |

| Die size | 215 mm² | 2x 74 mm² |

| L1 cache | 80 KB (per core) | 64 KB (per core) |

| L2 cache | 1.25 MB (per core) | 512 KB (per core) |

| L3 cache | 36 MB (shared) | 64 MB |

| Memory support | DDR4, DDR5 | DDR4 |

| Memory bandwidth | 89.6 GB/s | 51.2 GB/s |

| PCIe | Gen 5, 16 Lanes | Gen 4 |

| Integrated graphics | UHD Graphics 770 | None |

| Multiplier unlocked | No | Yes |

| Release date | 2025-01-12 | 2020-11-04 |

| Launch MSRP | $384 | $549 |

Head-to-Head Benchmarks

The largest win for Intel is in Cinebench R23 single-core, where the 251TE scores 3602 against the 5900X’s 1527, a staggering 135.9% difference. This single result dominates any narrative about the AMD part’s strengths. Close behind is Cinebench R23 multi-core, where Intel leads 25518 to 16262, a 56.9% advantage. These two tests alone suggest that for any rendering or 3D workload, the Intel chip is dramatically faster.

AMD’s biggest wins come in PassMark extended instructions (33119 vs 16974, a 48.7% margin) and find prime numbers (257 vs 140, a 45.5% margin). Data compression shows a 33.1% lead for AMD (499968 vs 334399), and encryption shows a 28.7% lead (31106 vs 22176). These are substantial margins, but they are workload-specific. The multithread PassMark score favors AMD by 23% (39002 vs 30022), and random string sorting also goes AMD’s way by 23.2% (51646 vs 39643).

Intel also holds smaller wins in floating-point math (85607 vs 77700, a 10.2% edge) and single-thread PassMark (3568 vs 3469, a 2.9% edge). In Cinebench R15, the results split: AMD wins multi-core 2695 to 2572 (a 4.6% margin), but Intel dominates single-core 362 to 250 (a 44.8% margin). The physics test is close, with AMD ahead 1994 to 1938 (a 2.8% margin).

Where Each One Wins

The Intel Core 7 251TE is the winner for single-threaded performance, which is critical for most everyday applications, gaming, and lightly threaded productivity. The 135.9% lead in Cinebench R23 single-core and 44.8% lead in R15 single-core are too large to ignore. Intel also wins in floating-point math, suggesting it handles scientific or simulation workloads better. The 56.9% multi-core Cinebench R23 advantage means rendering, video editing, and compilation tasks will finish far sooner on the Intel chip. The 45 W TDP also makes it the better choice for small-form-factor or power-limited systems, though it requires a discrete GPU or relies on its UHD Graphics 770 for display output.

The AMD Ryzen 9 5900X wins in data-centric, integer-heavy workloads. Its 33.1% lead in data compression and 28.7% lead in encryption point to strengths in database operations, file archiving, and secure data handling. The 48.7% margin in extended instructions suggests better support for specialized instruction sets (like AVX-512 or similar), which can accelerate cryptographic hashing or certain scientific computations. The 23% multithread PassMark lead and 23.2% random string sorting advantage indicate that the AMD chip excels in parallel data processing where cache hierarchy matters. Its 64 MB L3 cache is double Intel’s 36 MB, which may explain its superiority in these cache-sensitive tests. For users running server-like workloads—compression pipelines, encryption gateways, or data transformation tasks—the AMD part is the stronger candidate despite its higher TDP.