Intel Core 5 315 vs Intel Core 7 251E Comparison

Head-to-Head Benchmarks

The recorded data presents an unusual comparison scenario. The Intel Core 5 315 (Wildcat Lake) has a full suite of benchmark results, while the Intel Core 7 251E (Bartlett Lake) has no recorded benchmark scores in the database. Consequently, direct numerical comparisons between the two processors cannot be established through the available measurements.

The Intel Core 5 315 shows a percentile ranking of 72 among all CPUs in the database, indicating it outperforms the majority of recorded processors in aggregate benchmark performance. Its average benchmark score is 18188. When placed against its nearest rivals, the Core 5 315 demonstrates near-identical aggregate performance to the AMD EPYC 9274F, which holds an average score of 18189 with a delta of 0 percent. The Intel Core i7-9700 trails marginally at 18180, also with a 0 percent delta. The Intel Core i7-1365U and AMD Ryzen 7 5700U both post average scores of 18177 and 18176 respectively, each showing a 0.1 percent delta from the Core 5 315.

For the Core 5 315's multi-threaded capabilities, the Cinebench R23 multicore test yields a score of 12981, while the single-core variant produces 1832. In Cinebench R20, the multicore result is 5452 and single-core is 769. The older Cinebench R15 test shows a multicore score of 1308 and single-core of 184. These results indicate a processor that holds its own against established desktop and server parts from prior generations, despite being a 6-core, 6-thread mobile-oriented chip.

PassMark tests further characterize the Core 5 315. The single-thread score is 4021, which is notable given the modest 1.50 GHz base clock and 4.40 GHz boost clock. Integer math scores reach 31690, floating-point math reaches 42441, and extended instructions score 13143. Data compression scores 146143, while data encryption scores 11119. The processor finds prime numbers at a rate of 112, and random string sorting completes at 17551. The multithread score is 15272, and the physics test yields 1163.

The Core 7 251E has an average benchmark score of 0 and a percentile ranking of 50, which reflects the absence of benchmark data rather than a performance floor. The database shows zero wins for the Core 5 315 and zero wins for the Core 7 251E in head-to-head comparisons, because no head-to-head benchmark records exist for this pairing. The analysis must therefore rely on architectural and specification differences to contextualize the two processors.

FAQ

Q: What is the aggregate benchmark score for the Intel Core 5 315?

A: The Intel Core 5 315 has an average benchmark score of 18188, placing it at the 72nd percentile among all CPUs in the database.

Q: Does the Intel Core 7 251E have any recorded benchmark scores?

A: No, the database contains no benchmark entries for the Intel Core 7 251E. Its average benchmark score is recorded as 0, and it has no nearest rivals listed.

Q: How does the Intel Core 5 315 compare to its nearest rivals in aggregate score?

A: The AMD EPYC 9274F scores 18189 (0 percent delta), the Intel Core i7-9700 scores 18180 (0 percent delta), the Intel Core i7-1365U scores 18177 (0.1 percent delta), and the AMD Ryzen 7 5700U scores 18176 (0.1 percent delta). All four rivals sit within 0.1 percent of the Core 5 315's average score.

Q: What is the memory bandwidth difference between the two processors?

A: The Intel Core 5 315 supports single-channel memory with a bandwidth of 59.7 GB/s, while the Intel Core 7 251E supports dual-channel memory with a bandwidth of 89.6 GB/s.

Q: Which processor supports ECC memory?

A: The Intel Core 7 251E has ECC memory support enabled, while the Intel Core 5 315 does not support ECC memory.

Q: What are the process nodes for each processor?

A: The Intel Core 5 315 uses a 3 nm process node, while the Intel Core 7 251E uses a 10 nm process node. Both are manufactured by Intel.

Architecture Differences

The Intel Core 5 315 uses the Wildcat Lake architecture and belongs to the Core 5 generation. It is built on a 3 nm process node at Intel's foundry. The processor contains 6 cores and 6 threads, indicating no hyper-threading capability. Its cache hierarchy includes 192 KB of L1 cache, 2.5 MB of L2 cache, and 6 MB of shared L3 cache.

The Intel Core 7 251E uses the Bartlett Lake architecture and belongs to the Core 7 generation. It is built on a 10 nm process node, also at Intel's foundry. This processor contains 24 cores and 32 threads, indicating that 8 of its cores support additional threads. Its die size is 257 mm². The cache hierarchy is organized differently: 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 36 MB of shared L3 cache. The per-core L2 cache arrangement means the total L2 capacity scales with the core count, and the shared L3 pool is substantially larger than the Core 5 315's 6 MB.

The integrated graphics differ as well. The Core 5 315 uses Intel Xe3 Graphics with 2 Xe cores, while the Core 7 251E uses UHD Graphics 770. The Core 5 315's PCIe configuration supports Gen 4 with 6 CPU-only lanes, whereas the Core 7 251E supports Gen 5 with 16 CPU-only lanes.

Memory support diverges in architecture. The Core 5 315 supports DDR5 and LPDDR5X memory over a single-channel bus. The Core 7 251E supports DDR4 and DDR5 memory over a dual-channel bus. Memory bandwidth reflects this: 59.7 GB/s for the Core 5 315 versus 89.6 GB/s for the Core 7 251E.

Specification Differences

The core and thread counts present the most significant divergence. The Core 5 315 has 6 cores and 6 threads, while the Core 7 251E has 24 cores and 32 threads. Base clocks differ: the Core 5 315 runs at 1.50 GHz, the Core 7 251E at 2.10 GHz. Boost clocks also differ: 4.40 GHz for the Core 5 315 versus 5.60 GHz for the Core 7 251E.

Thermal design power separates the two clearly. The Core 5 315 has a TDP of 15 watts, classifying it as a low-power mobile part. The Core 7 251E has a TDP of 65 watts, a desktop-class power envelope. The socket types are incompatible: the Core 5 315 uses Intel BGA 1516, while the Core 7 251E uses Intel Socket 1700.

Process node and die size differ. The Core 5 315 uses a 3 nm node with no listed die size. The Core 7 251E uses a 10 nm node with a die size of 257 mm². Cache capacity differs across all levels: L1 is 192 KB total for the Core 5 315 versus 80 KB per core for the Core 7 251E; L2 is 2.5 MB total versus 2 MB per core; L3 is 6 MB shared versus 36 MB shared.

Memory support differs in both type and channel configuration. The Core 5 315 supports DDR5 and LPDDR5X on a single-channel bus at 59.7 GB/s. The Core 7 251E supports DDR4 and DDR5 on a dual-channel bus at 89.6 GB/s. ECC memory is absent on the Core 5 315 and present on the Core 7 251E.

PCIe capabilities differ: the Core 5 315 uses Gen 4 with 6 CPU-only lanes, the Core 7 251E uses Gen 5 with 16 CPU-only lanes. Integrated graphics differ: Intel Xe3 Graphics (2 Xe) on the Core 5 315 versus UHD Graphics 770 on the Core 7 251E. Market segments differ: the Core 5 315 is a mobile part, the Core 7 251E is a desktop part.

The release dates differ by over a year. The Core 7 251E was released on 2025-01-12, while the Core 5 315 was released on 2026-04-15. The launch MSRP for the Core 5 315 is $340. The launch MSRP for the Core 7 251E is $384. Both processors are actively in production, and neither has an unlocked multiplier. The part numbers are SAEFC for the Core 5 315 and SRQDUQ657 for the Core 7 251E.

The Verdict

The data supports a clear split in processor selection based on workload requirements and platform constraints. The Intel Core 7 251E offers 24 cores and 32 threads, a dual-channel memory bus with 89.6 GB/s bandwidth, ECC memory support, Gen 5 PCIe with 16 lanes, and a 36 MB shared L3 cache. These specifications point toward multi-threaded desktop workloads, memory-intensive tasks, and environments requiring error-correcting memory.

The Intel Core 5 315, with 6 cores and 6 threads, a 15-watt TDP, and single-channel memory at 59.7 GB/s, is positioned for power-constrained mobile platforms. Its benchmark data shows it performs at the 72nd percentile among all CPUs, with aggregate scores matching the AMD EPYC 9274F and Intel Core i7-9700 within 0 percent delta. The Cinebench R23 multicore score of 12981 and single-core score of 1832 demonstrate that a low-power 6-core design can deliver competitive results against older high-power desktop parts.

The Core 7 251E has no recorded benchmark data, so its actual performance relative to the Core 5 315 cannot be quantified from the database. The specification sheet indicates substantial advantages in core count, thread count, cache capacity, memory bandwidth, and PCIe capability. The 5.60 GHz boost clock and 2.10 GHz base clock also exceed the Core 5 315's 4.40 GHz and 1.50 GHz respectively.

Where Each One Wins

The Intel Core 5 315 wins in power efficiency and portability. Its 15-watt TDP is suited for mobile devices where thermal and battery constraints dominate. The 3 nm process node represents a more advanced manufacturing technology than the 10 nm node used by the Core 7 251E. Its LPDDR5X memory support enables low-power memory configurations in compact systems. The BGA 1516 socket indicates a soldered, non-upgradeable platform typical of thin-and-light laptops.

The Intel Core 7 251E wins in raw compute capacity and platform features. The 24-core, 32-thread configuration provides 4 times the cores and over 5 times the threads of the Core 5 315. The dual-channel memory bus at 89.6 GB/s offers 50 percent more bandwidth than the Core 5 315's 59.7 GB/s. ECC memory support makes it suitable for data-integrity-sensitive workloads. The Gen 5 PCIe interface with 16 lanes provides significantly more I/O throughput than the Gen 4, 6-lane interface on the Core 5 315. The 36 MB shared L3 cache is 6 times larger than the 6 MB shared L3 on the Core 5 315.

The Core 5 315 wins in the single-thread benchmark arena based on its recorded data. Its PassMark single-thread score of 4021, Cinebench R23 single-core score of 1832, and Cinebench R20 single-core score of 769 demonstrate strong per-core performance. These results are achieved despite a lower base clock, suggesting the Wildcat Lake architecture extracts significant instructions per clock from its 3 nm process.

The Core 7 251E wins in memory capacity flexibility, supporting both DDR4 and DDR5, while the Core 5 315 supports DDR5 and LPDDR5X. The Core 7 251E's Socket 1700 platform allows for user-serviceable memory and CPU upgrades, whereas the Core 5 315's BGA 1516 socket does not. The Core 7 251E's UHD Graphics 770 and the Core 5 315's Intel Xe3 Graphics (2 Xe) serve different display and media needs, with the Xe3 architecture representing a newer graphics generation.

For multi-threaded throughput, the Core 7 251E's architectural advantages in core count, threads, cache, and memory bandwidth position it ahead on paper. For power-sensitive mobile workloads, the Core 5 315's benchmark-verified performance and 15-watt envelope make it the appropriate choice. The database contains no head-to-head benchmark results, so performance claims for the Core 7 251E remain specification-based rather than measurement-based.