AMD Ryzen 9 7940HX vs Intel Core 7 251E Comparison

AMD Ryzen 9 7940HX vs Intel Core 7 251E is a comparison between two processors with very different design philosophies. The AMD part is a 16-core, 32-thread mobile chip built on a 5 nm process, while the Intel part is a 24-core, 32-thread desktop chip built on a 10 nm process. The recorded data shows that only the AMD Ryzen 9 7940HX has benchmark scores in the database, while the Intel Core 7 251E has no recorded benchmarks. This asymmetry defines the entire analysis: the measured performance belongs exclusively to the AMD processor, and the Intel processor can only be evaluated through its architectural characteristics and specifications.

Head-to-Head Benchmarks

The database contains no direct head-to-head benchmark results between these two processors. The headToHeadBenchmarks field is empty, and the wins counters for both parts are zero. Consequently, there are no measured scores that pit the AMD Ryzen 9 7940HX directly against the Intel Core 7 251E in any shared test.

However, the AMD Ryzen 9 7940HX has a full set of benchmark records. Its Cinebench R23 multicore score is 29400, and its single-core score is 1807. The PassMark multithread score is 53204, while the PassMark single-thread score is 3942. In 3DMark, the processor records 12501 for 16 threads, 7158 for 8 threads, 3844 for 4 threads, 2001 for 2 threads, 13447 for max threads, and 1027 for single thread. These numbers establish a performance baseline for the AMD part, but they offer no comparative data against the Intel Core 7 251E.

The absence of Intel benchmark data means the database cannot show where the Intel Core 7 251E wins or loses against the AMD Ryzen 9 7940HX. The Intel processor has an average benchmark score of 0 and a percentile rank of 50 among all CPUs, which is the neutral midpoint, but this is not a measured result. It is a placeholder value from the database structure, not a performance claim. The AMD Ryzen 9 7940HX, by contrast, has a percentile rank of 94, meaning it sits above 94 percent of all CPUs in the database based on its recorded average benchmark score of 69875.

The AMD processor also has nearest rival comparisons. The AMD Ryzen 7 9700F has an average score of 69996, which is 0.2 percent higher than the Ryzen 9 7940HX. The Intel Core i7-14700KF scores 70163, which is 0.4 percent higher. The AMD Ryzen 9 7950X scores 69515, which is 0.5 percent lower. The Intel Core i7-14700K scores 69355, which is 0.7 percent lower. These deltas are small, all within one percent, and they show the Ryzen 9 7940HX sits in a tightly clustered performance band around similar desktop and mobile processors. None of these rivals is the Intel Core 7 251E.

Because the Intel Core 7 251E has no benchmark entries, the only quantitative comparison available is through specifications. The AMD part has a boost clock of 5.20 GHz, while the Intel part has a boost clock of 5.60 GHz. The Intel processor clocks 0.40 GHz higher, but without measured scores, the database cannot translate that clock advantage into a performance lead. The AMD part has a base clock of 2.40 GHz versus 2.10 GHz for the Intel part, a 0.30 GHz advantage for AMD at the base frequency. Again, no benchmark data confirms how these clock differences affect real workloads.

Architecture Differences

The AMD Ryzen 9 7940HX uses the Zen 4 architecture with the codename Dragon Range. It belongs to the 7000 series and the generation listed as Ryzen 9 (Zen 4 (Dragon Range)). The process node is 5 nm, fabricated by TSMC. The transistor count is 13,140 million, and the die size is 2x 71 mm². This is a chiplet design with two dies, each measuring 71 square millimeters.

The Intel Core 7 251E uses the codename Bartlett Lake and the generation Core 7 (Bartlett Lake). The process node is 10 nm, fabricated by Intel. The die size is 257 mm², which is a single monolithic die. The database does not list an architecture name for the Intel part, leaving it as a null value. The transistor count is also null, so no direct comparison of transistor density is possible.

Cache hierarchies differ substantially. The AMD Ryzen 9 7940HX has 64 KB of L1 cache per core, 1 MB of L2 cache per core, and 64 MB of L3 cache. The Intel Core 7 251E has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 36 MB of shared L3 cache. The Intel part has more L1 and L2 per core, but the AMD part has almost twice the L3 capacity: 64 MB versus 36 MB. The larger shared L3 on the AMD processor can benefit workloads that reuse data across cores, while the Intel per-core L2 advantage may help single-threaded locality.

Memory support also differs. The AMD Ryzen 9 7940HX supports DDR5 only, with a dual-channel memory bus and a memory bandwidth of 83.2 GB/s. The Intel Core 7 251E supports both DDR4 and DDR5, also with a dual-channel bus, and has a higher memory bandwidth of 89.6 GB/s. The Intel processor also supports ECC memory, while the AMD processor does not. The Intel part offers more memory flexibility and a slight bandwidth edge, while the AMD part is restricted to DDR5 but still delivers a high bandwidth figure.

PCIe connectivity is different. The AMD Ryzen 9 7940HX has PCIe Gen 5 with 28 lanes from the CPU. The Intel Core 7 251E has PCIe Gen 5 with 16 lanes from the CPU. The AMD part provides 12 more CPU-attached PCIe lanes, which can support more high-speed devices directly.

Integrated graphics differ. The AMD Ryzen 9 7940HX uses the Radeon 610M, while the Intel Core 7 251E uses the UHD Graphics 770. The database does not include graphics benchmarks, so no performance comparison is possible.

The market segments differ. The AMD Ryzen 9 7940HX is listed as Mobile, and it uses the AMD Socket FL1. The Intel Core 7 251E is listed as Desktop, and it uses Intel Socket 1700. This is a fundamental platform difference: one is designed for laptops, the other for desktop systems.

The production status for both is Active. The AMD processor has a release date of 2024-01-16, while the Intel processor has a release date of 2025-01-12. The Intel part is newer by roughly a year in the database.

FAQ

Q: Which processor has more cores?

A: The Intel Core 7 251E has 24 cores, while the AMD Ryzen 9 7940HX has 16 cores. Both have 32 threads.

Q: Which processor has a higher boost clock?

A: The Intel Core 7 251E has a boost clock of 5.60 GHz, which is 0.40 GHz higher than the AMD Ryzen 9 7940HX boost clock of 5.20 GHz.

Q: Which processor has more L3 cache?

A: The AMD Ryzen 9 7940HX has 64 MB of L3 cache, while the Intel Core 7 251E has 36 MB of shared L3 cache. The AMD part has 28 MB more L3 capacity.

Q: Does the Intel Core 7 251E support ECC memory?

A: Yes, the Intel Core 7 251E has ECC memory support set to true. The AMD Ryzen 9 7940HX has ECC memory support set to false.

Q: Which processor has more PCIe lanes?

A: The AMD Ryzen 9 7940HX has 28 PCIe Gen 5 lanes from the CPU, while the Intel Core 7 251E has 16 PCIe Gen 5 lanes from the CPU. The AMD part has 12 more lanes.

Q: What is the market segment for each processor?

A: The AMD Ryzen 9 7940HX is a Mobile processor using AMD Socket FL1, and the Intel Core 7 251E is a Desktop processor using Intel Socket 1700.

Specification Differences

The following fields differ between the AMD Ryzen 9 7940HX and the Intel Core 7 251E:

• Cores: 16 for AMD, 24 for Intel.
• Base clock: 2.40 GHz for AMD, 2.10 GHz for Intel.
• Boost clock: 5.20 GHz for AMD, 5.60 GHz for Intel.
• TDP: 55 for AMD, 65 for Intel.
• Socket: AMD Socket FL1 for AMD, Intel Socket 1700 for Intel.
• Architecture: Zen 4 for AMD, null for Intel.
• Codename: Dragon Range for AMD, Bartlett Lake for Intel.
• Generation: Ryzen 9 (Zen 4 (Dragon Range)) for AMD, Core 7 (Bartlett Lake) for Intel.
• Process node: 5 nm for AMD, 10 nm for Intel.
• Foundry: TSMC for AMD, Intel for Intel.
• Transistors: 13,140 million for AMD, null for Intel.
• Die size: 2x 71 mm² for AMD, 257 mm² for Intel.
• L1 cache: 64 KB per core for AMD, 80 KB per core for Intel.
• L2 cache: 1 MB per core for AMD, 2 MB per core for Intel.
• L3 cache: 64 MB for AMD, 36 MB shared for Intel.
• Memory support: DDR5 for AMD, DDR4 and DDR5 for Intel.
• Memory bandwidth: 83.2 GB/s for AMD, 89.6 GB/s for Intel.
• ECC memory: false for AMD, true for Intel.
• PCIe: Gen 5 with 28 lanes for AMD, Gen 5 with 16 lanes for Intel.
• Integrated graphics: Radeon 610M for AMD, UHD Graphics 770 for Intel.
• Market segment: Mobile for AMD, Desktop for Intel.
• Release date: 2024-01-16 for AMD, 2025-01-12 for Intel.
• Launch MSRP: null for AMD, $384 for Intel.
• Multiplier unlocked: true for AMD, false for Intel.
• Part number: 100-000001486 for AMD, SRQDUQ657 for Intel.
• Percentile: 94 for AMD, 50 for Intel.
• Average benchmark score: 69875 for AMD, 0 for Intel.
• Benchmarks array: populated for AMD, empty for Intel.
• Nearest rivals: populated for AMD, empty for Intel.

Fields that are the same include threads (32 for both), memory bus (dual-channel for both), and production status (Active for both).

Where Each One Wins

Based strictly on the database, the AMD Ryzen 9 7940HX wins in every measured benchmark category because it is the only processor with recorded scores. Its Cinebench R23 multicore score of 29400 and single-core score of 1807 indicate strong performance in both parallel and single-threaded workloads. The PassMark multithread score of 53204 and single-thread score of 3942 reinforce this. The 3DMark results, ranging from 1027 for single thread to 13447 for max threads, show scalability across thread counts. The AMD part also wins on L3 cache capacity with 64 MB, on PCIe lane count with 28 lanes, on process node with 5 nm, and on base clock with 2.40 GHz.

The Intel Core 7 251E wins on specifications where the database has no AMD counterpart. It has more cores (24 versus 16), a higher boost clock (5.60 GHz versus 5.20 GHz), a higher TDP (65 versus 55), a larger per-core L1 cache (80 KB versus 64 KB), a larger per-core L2 cache (2 MB versus 1 MB), a higher memory bandwidth (89.6 GB/s versus 83.2 GB/s), ECC memory support, support for both DDR4 and DDR5, and a larger monolithic die at 257 mm². It also has a newer release date of 2025-01-12 and a launch MSRP of $384. The Intel part is locked, with multiplier unlocked set to false, while the AMD part is unlocked.

The use-case split follows the market segment. The AMD Ryzen 9 7940HX is a mobile processor, so it fits laptops and portable systems. Its 55 TDP and 5 nm process suggest lower power draw, though the database does not provide measured power figures. The Intel Core 7 251E is a desktop processor with a 65 TDP and a larger die, which points to a stationary system with more cooling headroom. The Intel part has more cores, but the AMD part has more PCIe lanes and more L3 cache. For workloads that depend on large shared caches or many CPU-attached PCIe devices, the AMD part has the specification advantage. For workloads that depend on core count, memory flexibility, or ECC, the Intel part has the specification advantage.

The Verdict

The database presents a lopsided comparison. The AMD Ryzen 9 7940HX has a full set of benchmark scores, a percentile rank of 94, and an average benchmark score of 69875. The Intel Core 7 251E has no benchmark scores, a percentile rank of 50, and an average benchmark score of 0. This means any performance verdict must rely solely on the AMD processor's measured results, while the Intel processor can only be assessed through its listed specifications.

For a user who prioritizes measured performance, the AMD Ryzen 9 7940HX is the only option with data. Its Cinebench R23 multicore score of 29400 and PassMark multithread score of 53204 place it in the top tier of the database, and its nearest rivals all fall within one percent of its average score. The Intel Core 7 251E cannot be compared on this basis because no benchmarks exist.

For a user who prioritizes specifications, the Intel Core 7 251E offers more cores, a higher boost clock, more per-core cache, ECC support, dual memory types, and a higher memory bandwidth. The AMD Ryzen 9 7940HX offers a smaller process node, more L3 cache, more PCIe lanes, and a higher base clock. The Intel part is a desktop chip with a launch MSRP of $384, while the AMD part is a mobile chip with no listed launch MSRP.

The verdict depends on platform and data availability. If the system must be a mobile laptop, the AMD Ryzen 9 7940HX is the only match. If the system is a desktop, the Intel Core 7 251E has the specification edge in core count and memory features, but the database cannot confirm its performance. The recorded data shows the AMD processor as the measured performer, and the Intel processor as a specification sheet without benchmark validation.