Intel Core i5-1340P vs Intel Core i7-7820X Comparison

Head-to-Head Benchmarks

The benchmark data tells a remarkably consistent story across the entire Cinebench suite. The Intel Core i5-1340P wins all six recorded head-to-head tests, with every single margin falling between 7.7% and 7.9%. This uniformity suggests the performance gap is structural rather than workload-dependent.

In Cinebench R23 multi-core, the i5-1340P scores 15,716 against the i7-7820X's 14,576, a 7.8% advantage. The single-core result is nearly identical in percentage terms: 2,218 versus 2,057, again a 7.8% gap. The i5-1340P carries that edge into older Cinebench versions too, posting 6,600 in R20 multi-core versus 6,121 for the i7-7820X, and 931 versus 863 in R20 single-core.

The R15 results follow the same pattern. The i5-1340P records 1,584 multi-core and 223 single-core, while the i7-7820X manages 1,469 and 207 respectively. That translates to a 7.8% win in multi-core and a 7.7% win in single-core, the narrowest margin in the entire comparison.

From a pure win count, it is a clean sweep. The i5-1340P takes all six benchmarks, and the i7-7820X does not register a single victory. Yet the average benchmark scores in the database show a slightly different picture. The i5-1340P carries an average of 4,545, while the i7-7820X sits at 4,321. The i5-1340P's average places it among rivals like the Intel Core i7-10700KF at 4,547 (a 0% delta) and the Intel Xeon E-2356G at 4,548 (a -0.1% delta). The i7-7820X, meanwhile, sits near the AMD Ryzen 7 PRO 5750G at 4,296 (0.6% ahead of that rival) and the AMD EPYC 7232P at 4,354 (the i7 trails by 0.8%).

Both processors land at the 58th percentile among all CPUs in the database. Despite the i5-1340P's consistent head-to-head wins, the two are overall performance peers when placed against the full field.

Where Each One Wins

The i5-1340P wins everywhere in the recorded Cinebench tests, but the magnitude of that win matters for use-case analysis. A 7.8% lead in multi-core rendering means the i5-1340P is the faster chip for heavily threaded workloads like video encoding, 3D rendering, and batch processing. The R23 multi-core score of 15,716 versus 14,576 is the clearest signal: the i5-1340P edges ahead in sustained all-core workloads despite its mobile pedigree.

Single-core performance follows the same direction. The i5-1340P leads by 7.8% in R23 single-core and 7.9% in R20 single-core. That matters for everyday responsiveness, lightly threaded applications, and tasks that depend on a single fast core. The i5-1340P's 2,218 R23 single-core score is simply the better number.

The i7-7820X, for its part, has no benchmark wins in this dataset. Its best showing is the R15 single-core test, where it trails by only 7.7%. The i7-7820X does bring platform-level advantages that do not appear in Cinebench scores. It supports quad-channel memory with 85.3 GB/s of bandwidth, and it offers 28 PCIe Gen 3 lanes from the CPU. The i5-1340P uses dual-channel memory and provides 20 PCIe Gen 4 lanes. For workloads that are memory-bandwidth sensitive or need extensive PCIe expansion, the i7-7820X's platform capabilities could matter more than its raw compute scores.

The production status also splits the two. The i5-1340P is listed as Active, while the i7-7820X is End-of-life. For new system builds, the i5-1340P is the part with ongoing availability.

Architecture Differences

The two processors come from different Intel design eras. The i5-1340P uses Raptor Lake architecture on a 10 nm process node, while the i7-7820X uses Skylake-X architecture on a 14 nm node. Both were fabricated by Intel, but the process gap is significant: the newer 10 nm node allows the i5-1340P to deliver more performance per watt and higher transistor density.

Core counts differ as well. The i5-1340P has 12 cores and 16 threads, while the i7-7820X has 8 cores and 16 threads. The i5-1340P leverages its four extra physical cores to offset the i7-7820X's higher base clock. The i7-7820X runs at a 3.60 GHz base clock and boosts to 4.50 GHz, while the i5-1340P runs at 1.90 GHz base and boosts to 4.60 GHz. The i5-1340P's higher boost clock and additional cores combine to produce its benchmark advantage.

Cache hierarchies also differ. The i5-1340P has 80 KB of L1 cache per core, 2 MB of L2 cache per core, and 12 MB of shared L3 cache. The i7-7820X has 64 KB of L1 per core, 1 MB of L2 per core, and 11 MB of shared L3. The i5-1340P's larger per-core L2 cache is a notable architectural advantage.

Memory support splits the two clearly. The i5-1340P supports both DDR4 and DDR5 in a dual-channel configuration. The i7-7820X supports only DDR4 but in a quad-channel configuration with an official memory bandwidth of 85.3 GB/s. The i5-1340P has no recorded memory bandwidth figure in the database.

PCIe capabilities also differ. The i5-1340P provides 20 PCIe Gen 4 lanes, while the i7-7820X provides 28 PCIe Gen 3 lanes. The i5-1340P has the newer standard, while the i7-7820X has more total lanes.

Integrated graphics is a major differentiator. The i5-1340P includes Iris Xe Graphics 80EU, making it a complete package for systems without a discrete GPU. The i7-7820X has no integrated graphics at all, requiring a separate graphics card for any display output. The i5-1340P also targets the mobile market segment, while the i7-7820X is a desktop part. The i5-1340P uses the Intel BGA 1744 socket, and the i7-7820X uses Intel Socket 2066.

The unlock status differs as well. The i7-7820X has an unlocked multiplier for overclocking, while the i5-1340P does not. The i7-7820X's 140 W TDP reflects its desktop, overclockable design; the i5-1340P draws 28 W. The i5-1340P was released on 2023-01-03, while the i7-7820X launched on 2017-06-25.

FAQ

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

A: The Intel Core i5-1340P scores 15,716 versus the i7-7820X's 14,576, a 7.8% advantage.

Q: Does the i7-7820X win any head-to-head benchmark?

A: No. The i5-1340P wins all six recorded Cinebench tests, with margins between 7.7% and 7.9%.

Q: How do the two compare in the overall database rankings?

A: Both sit at the 58th percentile among all CPUs. The i5-1340P has an average benchmark score of 4,545, and the i7-7820X has 4,321.

Q: Which processor supports more memory channels?

A: The i7-7820X supports quad-channel DDR4 memory with 85.3 GB/s bandwidth. The i5-1340P supports dual-channel DDR4 or DDR5.

Q: Does either processor include integrated graphics?

A: The i5-1340P includes Iris Xe Graphics 80EU. The i7-7820X has no integrated graphics.

Q: Which processor has more cores?

A: The i5-1340P has 12 cores and 16 threads. The i7-7820X has 8 cores and 16 threads.

Specification Differences

| Specification | Intel Core i5-1340P | Intel Core i7-7820X |

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

| Cores | 12 | 8 |

| Threads | 16 | 16 |

| Base Clock | 1.90 GHz | 3.60 GHz |

| Boost Clock | 4.60 GHz | 4.50 GHz |

| TDP | 28 W | 140 W |

| Socket | Intel BGA 1744 | Intel Socket 2066 |

| Architecture | Raptor Lake | Skylake |

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

| Generation | Core i5 (Raptor Lake-P) | Core i7 (X-Series 7th Gen) |

| Process Node | 10 nm | 14 nm |

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

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

| L3 Cache | 12 MB (shared) | 11 MB (shared) |

| Memory Support | DDR4, DDR5 | DDR4 |

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

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

| PCIe | Gen 4, 20 Lanes (CPU only) | Gen 3, 28 Lanes (CPU only) |

| Integrated Graphics | Iris Xe Graphics 80EU | None |

| Market Segment | Mobile | Desktop |

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

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

| Launch MSRP | $353 | $599 |

| Multiplier Unlocked | No | Yes |

| Part Number | SRMJ7 | SR3L5 |

The i5-1340P's launch MSRP was $353, and the i7-7820X's launch MSRP was $599. Both processors lack ECC memory support. The i5-1340P is the newer, more efficient part with integrated graphics, while the i7-7820X offers quad-channel memory, more PCIe lanes, and an unlocked multiplier for overclocking. In raw compute performance, the recorded data shows the i5-1340P ahead across the board, but the i7-7820X retains platform advantages that may suit specific high-bandwidth or expansion-heavy use cases.