AMD Ryzen 5 PRO 8640U vs Intel Core 7 251TE Comparison

Where Each One Wins

The benchmark data splits this comparison along fairly clear lines. The Intel Core 7 251TE takes the overwhelming majority of the recorded tests, winning 14 of the 17 head-to-head matchups. Its wins are concentrated in heavily multithreaded workloads, raw arithmetic, and data processing tasks. The AMD Ryzen 5 PRO 8640U wins only 3 tests, but those wins are meaningful and point to specific strengths.

The Intel part dominates the Cinebench suite completely. In Cinebench R23 multi-core, it scores 25518 against 19982 for the AMD chip, a 21.7% margin. The same 21.7% gap appears across Cinebench R15, R20, and R23 in both single-core and multi-core tests. That consistency suggests the Intel processor holds a uniform clock-for-clock or core-count advantage in rendering workloads.

The AMD Ryzen 5 PRO 8640U wins the Passmark single-thread test with 3732 against 3568, a 4.6% margin. It also wins Passmark extended instructions with 19130 against 16974, a 12.7% lead. These two wins indicate the AMD architecture handles certain instruction extensions and lightly threaded tasks more efficiently per core.

For data-heavy workloads, the Intel Core 7 251TE is decisively ahead. Passmark data compression shows 334399 versus 260925, a 22% gap. Data encryption goes to Intel by 28.6% with 22176 versus 15843. Floating point math shows the largest single margin: Intel scores 85607 against 45265, a 47.1% advantage. Integer math also favors Intel heavily at 125739 versus 74875, a 40.5% gap.

The Intel processor also leads in Passmark physics (1938 versus 1154, a 40.5% margin), prime number finding (140 versus 78, a 44.3% margin), multithread performance (30022 versus 22795, a 24.1% margin), and random string sorting (39643 versus 32114, a 19% margin). In short, the Intel Core 7 251TE is the clear choice for compute-heavy and throughput-oriented tasks, while the AMD Ryzen 5 PRO 8640U holds a narrower edge in single-thread efficiency and extended instruction handling.

FAQ

Q: Which processor has the higher average benchmark score?

A: The Intel Core 7 251TE records an average benchmark score of 41650, while the AMD Ryzen 5 PRO 8640U averages 30254. The Intel part also sits at the 88th percentile of all CPUs in the database, compared to the 81st percentile for the AMD chip.

Q: How do the two chips compare in Cinebench R23 multi-core?

A: The Intel Core 7 251TE scores 25518 in Cinebench R23 multi-core, which is 21.7% ahead of the AMD Ryzen 5 PRO 8640U score of 19982.

Q: Does the AMD processor win any benchmark tests?

A: Yes. The AMD Ryzen 5 PRO 8640U wins the Passmark single-thread test with 3732 against 3568, a 4.6% margin, and the Passmark extended instructions test with 19130 against 16974, a 12.7% margin. These are its only two unique wins, though the single-thread result appears twice in the database under two test names.

Q: What is the largest performance gap between the two processors?

A: The largest gap is in Passmark floating point math, where the Intel Core 7 251TE scores 85607 against 45265 for the AMD chip, a 47.1% difference.

Q: Which processor has more cores and threads?

A: The Intel Core 7 251TE has 24 cores and 32 threads. The AMD Ryzen 5 PRO 8640U has 6 cores and 12 threads.

Q: What are the integrated graphics on each processor?

A: The AMD Ryzen 5 PRO 8640U uses the Radeon 760M. The Intel Core 7 251TE uses UHD Graphics 770.

Head-to-Head Benchmarks

The Intel Core 7 251TE wins every Cinebench test by the same 21.7% margin. Cinebench R15 multi-core shows 2572 versus 2014, R15 single-core shows 362 versus 284, R20 multi-core shows 10717 versus 8392, R20 single-core shows 1512 versus 1184, R23 multi-core shows 25518 versus 19982, and R23 single-core shows 3602 versus 2821. The uniformity of this margin across all six Cinebench tests indicates a consistent performance advantage rather than a workload-specific quirk.

Passmark data compression shows the Intel part ahead by 22%, scoring 334399 against 260925. Data encryption shows a wider 28.6% gap, with Intel at 22176 and AMD at 15843. Passmark multithread gives Intel a 24.1% lead with 30022 versus 22795. Random string sorting goes to Intel by 19%, 39643 versus 32114.

The most lopsided results appear in arithmetic workloads. Passmark floating point math favors Intel by 47.1%, with 85607 versus 45265. Passmark integer math favors Intel by 40.5%, with 125739 versus 74875. Passmark physics also shows a 40.5% gap, 1938 versus 1154. Prime number finding shows Intel ahead by 44.3%, 140 versus 78.

The AMD Ryzen 5 PRO 8640U counters in two areas. Passmark single-thread shows 3732 versus 3568, a 4.6% win for AMD. Passmark extended instructions shows 19130 versus 16974, a 12.7% win. These results suggest the AMD core design is more efficient when the workload does not scale across many cores, but the sheer core and thread advantage of the Intel part overwhelms that efficiency in almost every multithreaded test.

Specification Differences

The two processors differ substantially in core configuration. The AMD Ryzen 5 PRO 8640U has 6 cores and 12 threads, while the Intel Core 7 251TE has 24 cores and 32 threads. Base clocks differ as well: the AMD chip runs at 3.50 GHz, the Intel chip at 1.40 GHz. Boost clocks reverse the order, with AMD reaching 4.90 GHz and Intel reaching 5.40 GHz.

Power targets reflect their different market segments. The AMD processor has a 28 W TDP, the Intel processor a 45 W TDP. The AMD chip uses AMD Socket FP7, while the Intel chip uses Intel Socket 1700. The AMD part is a mobile processor, the Intel part is a desktop processor.

Memory support differs in scope. The AMD Ryzen 5 PRO 8640U supports DDR5 only, while the Intel Core 7 251TE supports both DDR4 and DDR5. Both use dual-channel memory buses and both have a memory bandwidth of 89.6 GB/s. Both support ECC memory.

PCIe capabilities also differ. The AMD chip provides PCIe Gen 4 with 20 lanes, while the Intel chip provides PCIe Gen 5 with 16 lanes. Integrated graphics differ: AMD uses Radeon 760M, Intel uses UHD Graphics 770. Neither processor has an unlocked multiplier.

The Intel Core 7 251TE has a launch MSRP of $384. The AMD Ryzen 5 PRO 8640U has no recorded launch MSRP in the database.

Architecture Differences

The AMD Ryzen 5 PRO 8640U belongs to the 8000 series and uses the Zen 4 architecture under the Hawk Point codename. It is built on a 4 nm process at TSMC, with 25,000 million transistors on a 178 mm² die. The Intel Core 7 251TE uses the Bartlett Lake codename and is built on a 10 nm process at Intel, with a 215 mm² die size. No transistor count is recorded for the Intel part.

Cache layouts differ significantly. The AMD chip has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 16 MB of shared L3 cache. The Intel chip has 80 KB of L1 cache per core, 1.25 MB of L2 cache per core, and 36 MB of shared L3 cache. The larger L3 cache on the Intel part aligns with its 24-core configuration and likely contributes to its multithreaded throughput.

The release dates place the AMD chip earlier. The Ryzen 5 PRO 8640U launched on 2024-04-15, while the Core 7 251TE launched on 2025-01-12. Both are listed as Active in production status. The AMD part has two recorded part numbers, 100-000001318 (FP7r2) and 100-000001378 (FP7), while the Intel part has one recorded part number, SRQAXQ5ZG.

The process node difference is notable. The AMD chip uses a 4 nm process at TSMC, while the Intel chip uses a 10 nm process at Intel. Despite the larger process node, the Intel processor delivers substantially higher multithreaded performance, which points to its core count and cache capacity overcoming the process disadvantage.

The Verdict

The recorded data shows a clear performance hierarchy. The Intel Core 7 251TE wins 14 of 17 head-to-head tests and holds the higher average benchmark score at 41650 versus 30254. Its closest rivals in the database are the Intel Core Ultra 7 265H, the Intel Core i7-14650HX, the Intel Core i7-12850HX, and the Intel Core i7-14700T, all within 0.6% of its average score. The AMD Ryzen 5 PRO 8640U sits in a different performance class, with nearest rivals including the AMD Ryzen 7 2700X, AMD Ryzen 7 7736U, AMD Ryzen 5 7640HS, and Intel Core i9-11980HK, all within 0.6% of its average.

The AMD Ryzen 5 PRO 8640U should be selected when the workload favors efficient single-thread execution and extended instruction handling. Its wins in Passmark single-thread and extended instructions, along with its lower 28 W TDP and mobile form factor, make it suitable for compact systems where power draw is a constraint. The 4 nm process and smaller die also suggest a more power-efficient design.

The Intel Core 7 251TE should be selected for multithreaded throughput. Its 24 cores and 32 threads deliver decisive margins in every Cinebench test, in Passmark multithread, data compression, data encryption, integer math, floating point math, prime finding, physics, and random string sorting. The 45 W TDP and desktop socket reflect a design aimed at sustained compute workloads rather than mobility.

For buyers weighing these two processors, the benchmark results are unambiguous: the Intel Core 7 251TE is the faster processor in nearly every measured category, and its 88th percentile ranking versus the AMD chip's 81st percentile confirms that standing. The AMD Ryzen 5 PRO 8640U remains competitive only in narrow single-thread and instruction-extension scenarios. The data does not support choosing the AMD part for general-purpose or heavily threaded work.