Intel Core i7-1375PRE vs Intel Core i9-7900X Comparison

Head-to-Head Benchmarks

The recorded benchmark data shows a consistent, though narrow, advantage for the Intel Core i9-7900X across every Cinebench test in the comparison. The i9-7900X wins all six head-to-head matchups, with every delta falling in a tight 2.4% to 2.6% band. This is not a case of one chip dominating another by a wide margin; it is a case of the older desktop part edging out the newer mobile part in raw rendering workloads.

In Cinebench R15 multicore, the i9-7900X scores 1782 against 1737 for the i7-1375PRE, a 2.6% lead. The single-core R15 result is similar: 251 versus 245, a 2.4% margin. Moving to Cinebench R20, the i9-7900X posts 7425 multicore and 1048 single-core, while the i7-1375PRE records 7239 and 1021 respectively. Both deltas sit at 2.6%. The pattern holds in Cinebench R23, where the i9-7900X reaches 17680 multicore and 2496 single-core, against 17236 and 2433 for the i7-1375PRE, again a 2.6% gap in both tests.

The consistency of the delta across all three Cinebench generations is notable. The i9-7900X leads by roughly the same percentage whether the workload is single-threaded or fully multi-threaded. That suggests the advantage comes from a fundamental per-thread performance edge rather than scaling behavior. In every recorded test, the i9-7900X is the winner, but the margins are small enough that real-world differences would be difficult to perceive without careful measurement.

Looking at the broader database position, the two CPUs sit almost exactly at the same percentile tier. The i9-7900X holds a 60th percentile rank against all CPUs, while the i7-1375PRE sits at the 59th percentile. Their average benchmark scores are 5120 and 4985 respectively, a difference of 135 points or roughly 2.7%. That average score gap aligns with the Cinebench deltas, reinforcing the conclusion that these parts are close neighbors in overall performance.

The nearest rival data places both chips in similar company. The i9-7900X is within 0.2% of the AMD EPYC 7262 (5109 average), 0.5% of the Intel Core i7-11850HE (5095), 0.9% of the Intel Xeon W-2155 (5072), and 1% of the AMD Ryzen 7 PRO 5750GE (5070). The i7-1375PRE sits within 0.1% of the Intel Core i5-12600HE (4980), 0.1% of the Intel Xeon W-2150B (4992), 0.2% of the Intel Core i3-12300HE (4995), and 0.3% of the AMD Ryzen 5 PRO 5650G (5002). Both chips are clustered tightly with their peers, meaning small benchmark differences separate entire performance tiers.

Architecture Differences

The two processors come from different eras and design philosophies. The i9-7900X is built on Intel's 14 nm process using the Skylake-X architecture, part of the Core i9 X-Series 7th Gen family. It features 10 cores and 20 threads, with a base clock of 3.30 GHz and a boost clock of 4.50 GHz. The i7-1375PRE, by contrast, uses the Raptor Lake architecture on a 10 nm process, belongs to the Raptor Lake-P generation, and offers 14 cores and 20 threads. Its base clock is listed at 1900.00 MHz (1.90 GHz) with a boost of 4.80 GHz.

The core count difference is significant: the i7-1375PRE has 14 physical cores versus 10 on the i9-7900X, yet both expose 20 threads. This implies the mobile part relies on a hybrid core arrangement typical of Raptor Lake, where performance cores and efficiency cores share the thread count. The i9-7900X uses a more traditional homogeneous design where all 10 cores contribute 2 threads each.

Cache layouts differ substantially. The i9-7900X provides 64 KB of L1 per core, 1 MB of L2 per core, and 14 MB of shared L3. The i7-1375PRE offers 80 KB of L1 per core, 2 MB of L2 per core, and 24 MB of shared L3. The mobile chip has more cache at every level, which helps compensate for its lower base clock and power envelope.

Memory support also diverges. The i9-7900X uses DDR4 with a quad-channel memory bus and a recorded memory bandwidth of 85.3 GB/s. The i7-1375PRE supports both DDR4 and DDR5, but only through a dual-channel bus, and no memory bandwidth figure is recorded in the database. The desktop part's quad-channel configuration gives it a theoretical bandwidth advantage, though the mobile part's support for faster DDR5 modules could narrow that gap in practice.

PCIe capabilities differ as well. The i9-7900X offers Gen 3 with 44 lanes from the CPU, while the i7-1375PRE provides Gen 4 with 20 lanes. The desktop chip has more lanes at an older standard; the mobile chip has fewer lanes but a newer standard. The i7-1375PRE also includes integrated Iris Xe Graphics with 96 execution units, whereas the i9-7900X has no integrated graphics listed.

The socket and platform targets are completely different. The i9-7900X uses Intel Socket 2066, a desktop HEDT platform, while the i7-1375PRE uses Intel BGA 1744, a soldered mobile package. The i9-7900X is unlocked for overclocking, while the i7-1375PRE is locked. The i9-7900X carries a 140 W TDP; the i7-1375PRE is rated at 28 W. The i9-7900X has been marked end-of-life, while the i7-1375PRE remains active in production.

The Verdict

The data points to a straightforward conclusion: the i9-7900X is the faster CPU in every benchmark recorded, but the margins are modest. All six Cinebench comparisons show the i9-7900X ahead by 2.4% to 2.6%. The average benchmark score difference is about 2.7% in favor of the desktop part. These are not transformative leads; they are incremental advantages that matter only if you are chasing every last point in rendering workloads.

The i9-7900X also carries a 60th percentile rank versus the i7-1375PRE's 59th, a one-point separation that reflects their near-identical standing in the overall database. Neither chip is a standout in its tier; both land in the middle of the distribution. The nearest rival clusters for both parts show they are surrounded by chips within a single percentage point of their average scores.

The choice between these two is therefore not about raw performance, since the i9-7900X wins that contest across the board. The decision hinges on platform fit and intended use. The i9-7900X is a desktop part on Socket 2066 with quad-channel DDR4, 44 PCIe Gen 3 lanes, and an unlocked multiplier. The i7-1375PRE is a mobile part on BGA 1744 with dual-channel DDR4 or DDR5, 20 PCIe Gen 4 lanes, a locked multiplier, and integrated graphics.

If the build is a desktop workstation with an existing X299-era motherboard, the i9-7900X is the better performer and offers more memory bandwidth and PCIe lanes. If the context is a mobile system or a compact embedded design, the i7-1375PRE is the only viable option between the two, and its 14-core design with more cache helps it stay competitive despite a 28 W power limit. The i9-7900X wins on benchmarks; the i7-1375PRE wins on efficiency and platform flexibility for portable systems.

FAQ

Q: Which CPU is faster in Cinebench R23 multi-core?

A: The Intel Core i9-7900X scores 17680 in Cinebench R23 multi-core, while the Intel Core i7-1375PRE scores 17236. The i9-7900X leads by 2.6%.

Q: How do the core counts compare?

A: The i7-1375PRE has 14 cores and 20 threads, while the i9-7900X has 10 cores and 20 threads. Both expose the same thread count, but the i7-1375PRE has more physical cores.

Q: Does the i7-1375PRE have integrated graphics?

A: Yes, the i7-1375PRE includes Iris Xe Graphics with 96 execution units. The i9-7900X has no integrated graphics listed in the database.

Q: What is the memory bandwidth difference?

A: The i9-7900X supports quad-channel DDR4 with a recorded memory bandwidth of 85.3 GB/s. The i7-1375PRE supports dual-channel DDR4 and DDR5, but no memory bandwidth figure is recorded for it.

Q: Which chip has a higher boost clock?

A: The i7-1375PRE boosts to 4.80 GHz, while the i9-7900X boosts to 4.50 GHz. Despite the higher boost clock, the i7-1375PRE still trails in every recorded benchmark.

Q: Are both CPUs unlocked for overclocking?

A: No. The i9-7900X has an unlocked multiplier, while the i7-1375PRE is locked.

Where Each One Wins

The i9-7900X wins every benchmark in the head-to-head comparison. All six Cinebench tests, from R15 to R23, single-core and multi-core, go to the desktop part. Its largest margin is 2.6% in multi-core R15, R20, R23, and single-core R20, R23. Its smallest margin is 2.4% in single-core R15. The i9-7900X also holds a higher average benchmark score (5120 versus 4985) and a higher percentile rank (60th versus 59th).

The i7-1375PRE does not win any recorded benchmark, but it has structural advantages that matter outside the tested workloads. It offers 14 cores versus 10, more L2 and L3 cache per core and in total, a higher boost clock of 4.80 GHz versus 4.50 GHz, a much lower 28 W TDP versus 140 W, integrated graphics, DDR5 memory support, and PCIe Gen 4 connectivity. These features do not translate into Cinebench wins, but they define its suitability for mobile and low-power designs.

The i9-7900X is the choice for maximum multithreaded rendering performance, quad-channel memory bandwidth, and expansion capability through 44 PCIe Gen 3 lanes. The i7-1375PRE is the choice for portable systems, integrated graphics, newer memory standards, and dramatically lower power consumption. The benchmark data says the i9-7900X is faster; the platform data says the i7-1375PRE is more versatile for its intended market segment.

Specification Differences

| Specification | Intel Core i9-7900X | Intel Core i7-1375PRE |

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

| Cores | 10 | 14 |

| Threads | 20 | 20 |

| Base Clock | 3.30 GHz | 1900.00 MHz (1.90 GHz) |

| Boost Clock | 4.50 GHz | 4.80 GHz |

| TDP | 140 W | 28 W |

| Socket | Intel Socket 2066 | Intel BGA 1744 |

| Architecture | Skylake | Raptor Lake |

| Codename | Skylake-X | Raptor Lake-P |

| Generation | Core i9 (X-Series 7th Gen) | Core i7 (Raptor Lake-P) |

| Process Node | 14 nm | 10 nm |

| Die Size | Not recorded | 217 mm² |

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

| L2 Cache | 1 MB (per core) | 2 MB (per core) |

| L3 Cache | 14 MB (shared) | 24 MB (shared) |

| Memory Support | DDR4 | DDR4, DDR5 |

| Memory Bus | Quad-channel | Dual-channel |

| Memory Bandwidth | 85.3 GB/s | Not recorded |

| PCIe | Gen 3, 44 Lanes (CPU only) | Gen 4, 20 Lanes (CPU only) |

| Integrated Graphics | None listed | Iris Xe Graphics 96EU |

| Market Segment | Desktop | Mobile |

| Production Status | End-of-life | Active |

| Release Date | 2017-06-25 | 2023-01-03 |

| Multiplier Unlocked | Yes | No |

| Part Number | SR3L2 | SRMRK |