AMD Ryzen Embedded V3C18I vs Intel Core i7-7800X Comparison

Head-to-Head Benchmarks

The recorded data shows a consistent, uniform advantage for the AMD Ryzen Embedded V3C18I across every Cinebench test in the database. In the six head-to-head comparisons, the AMD part wins all six, with the Intel Core i7-7800X failing to secure a single victory. The margins are remarkably stable, hovering around 6.6% to 7.1% in every workload.

Starting with the older Cinebench R15 suite, the AMD Ryzen Embedded V3C18I scores 1187 in multi-core, while the Intel Core i7-7800X posts 1113. That is a 6.6% advantage for AMD. In single-core R15, the gap widens slightly: AMD scores 167 against Intel’s 156, a 7.1% lead. This single-core margin is the largest of any benchmark in the comparison, indicating that the AMD architecture’s per-thread efficiency is a genuine strength, not just a byproduct of having more cores.

Moving to Cinebench R20, the pattern repeats. The AMD part delivers 4946 in multi-core versus 4638 for Intel, another 6.6% delta. In single-core R20, AMD’s 698 tops Intel’s 654, a 6.7% edge. The consistency of these deltas is notable: 6.6%, 6.6%, 6.6%, 6.7%, and 7.1% across five of the six tests. This suggests the performance gap is structural, rooted in architectural efficiency, rather than workload-specific quirks.

The most recent test, Cinebench R23, shows the same story. AMD scores 11777 in multi-core against Intel’s 11044, a 6.6% lead. Single-core R23 sees AMD at 1662 versus Intel’s 1559, again a 6.6% margin. In absolute terms, the AMD processor is roughly 700 points ahead in R23 multi-core, which is a meaningful gap for productivity workloads that scale across threads.

It is importantly the Intel Core i7-7800X does have additional Geekbench scores in its record (6144 multi-core, 1352 single-core), but the AMD Ryzen Embedded V3C18I has no corresponding Geekbench entries in the database. Therefore, no head-to-head comparison can be made on that platform. The Cinebench results, however, are unambiguous: the AMD part wins every shared test.

Where Each One Wins

The AMD Ryzen Embedded V3C18I wins in every measured category, but the nature of its advantage varies by workload type. In multi-core tests, the AMD part’s 8 cores and 16 threads outpace Intel’s 6 cores and 12 threads. The multi-core deltas of 6.6% across R15, R20, and R23 align with the core-count difference, though the efficiency of the Zen 3+ architecture amplifies the effect. A 33% core advantage (8 versus 6) translates to only a 6.6% score advantage, which indicates that the Intel part’s higher base clock, 3.50 GHz versus 1.90 GHz, helps it close some of the raw core-count gap in threaded workloads.

In single-core tests, the AMD part again wins, with deltas of 6.6% to 7.1%. This is more surprising given the clock speeds: Intel boosts to 4.00 GHz while AMD boosts to 3.80 GHz. Despite the 200 MHz clock disadvantage, the AMD Zen 3+ core delivers higher single-thread performance in Cinebench. The single-core R15 delta of 7.1% is the largest win of the entire comparison, suggesting that the architectural IPC advantage of Zen 3+ over Skylake is substantial.

There is no workload category where the Intel Core i7-7800X emerges ahead. The data records zero wins for Intel. That said, the Intel part’s advantages lie outside benchmark scores. It offers quad-channel memory support and 28 PCIe Gen 3 lanes, compared to AMD’s dual-channel DDR5 and 20 PCIe Gen 4 lanes. For systems that need maximum memory bandwidth or many expansion slots, the Intel platform retains structural benefits, even if its raw compute scores are lower.

Architecture Differences

The two processors come from different eras and design philosophies. The AMD Ryzen Embedded V3C18I uses the Zen 3+ architecture, codenamed Rembrandt, built on a 6 nm process at TSMC. It is part of the Ryzen Embedded generation, released in September 2022. The Intel Core i7-7800X uses the Skylake architecture, codenamed Skylake-X, built on Intel’s 14 nm process, released in June 2017. The five-year gap in release dates explains much of the performance difference.

Core and thread counts differ significantly. The AMD part has 8 cores and 16 threads, while the Intel part has 6 cores and 12 threads. Cache layouts also diverge. Both share 64 KB of L1 cache per core, but the AMD part has 512 KB of L2 per core, while Intel has 1 MB per core. For L3, AMD offers 16 MB shared, while Intel has 8.25 MB shared. The AMD L3 is nearly double the Intel L3, which benefits workloads that reuse data across cores.

Memory support is another major divide. The AMD Ryzen Embedded V3C18I supports DDR5 in a dual-channel configuration, with a recorded memory bandwidth of 76.8 GB/s. The Intel Core i7-7800X supports DDR4 in a quad-channel configuration, also with a recorded bandwidth of 76.8 GB/s. The bandwidth figures match, but the channel counts and memory generations differ. AMD also supports ECC memory, while Intel does not, a meaningful distinction for embedded and reliability-focused deployments.

PCIe connectivity shows a trade-off between generation and lane count. The AMD part offers PCIe Gen 4 with 20 lanes, while the Intel part offers PCIe Gen 3 with 28 lanes. Gen 4 doubles the per-lane bandwidth, so 20 Gen 4 lanes can deliver more total bandwidth than 28 Gen 3 lanes in many scenarios. However, the Intel part’s higher lane count supports more simultaneous devices.

Power characteristics are starkly different. The AMD Ryzen Embedded V3C18I has a TDP of 15 watts, while the Intel Core i7-7800X has a TDP of 140 watts. This is a nearly tenfold difference. The AMD part’s 6 nm process and embedded-oriented design allow it to achieve competitive performance at a fraction of the power draw. The Intel part, by contrast, is a high-power desktop X-series chip.

The AMD part is not multiplier-unlocked, while the Intel part is. Production status also differs: AMD is active, Intel is end-of-life. Socket platforms are incompatible: AMD Socket FP7 versus Intel Socket 2066.

FAQ

Q: Which processor has higher multi-core performance in Cinebench R23?

A: The AMD Ryzen Embedded V3C18I scores 11777, while the Intel Core i7-7800X scores 11044. The AMD part leads by 6.6%.

Q: How does single-core performance compare?

A: The AMD Ryzen Embedded V3C18I wins every single-core Cinebench test. In R15, it scores 167 versus 156 for Intel, a 7.1% lead. In R20, it scores 698 versus 654, a 6.7% lead. In R23, it scores 1662 versus 1559, a 6.6% lead.

Q: What are the core and thread counts for each chip?

A: The AMD Ryzen Embedded V3C18I has 8 cores and 16 threads. The Intel Core i7-7800X has 6 cores and 12 threads.

Q: Does either processor support ECC memory?

A: Yes, the AMD Ryzen Embedded V3C18I supports ECC memory. The Intel Core i7-7800X does not support ECC.

Q: What memory types do they support?

A: The AMD part supports DDR5 in a dual-channel configuration. The Intel part supports DDR4 in a quad-channel configuration. Both have a recorded memory bandwidth of 76.8 GB/s.

Q: What is the power draw difference?

A: The AMD Ryzen Embedded V3C18I has a TDP of 15 watts. The Intel Core i7-7800X has a TDP of 140 watts.

The Verdict

The data points decisively toward the AMD Ryzen Embedded V3C18I for raw compute performance. It wins all six Cinebench comparisons, with margins ranging from 6.6% to 7.1%. The AMD part achieves this while consuming 15 watts of TDP, compared to 140 watts for the Intel part. That efficiency gap is the most striking finding in the database: the AMD processor delivers higher scores with roughly one-tenth the thermal budget.

For workloads that rely on multi-threaded rendering or simulation, the AMD part’s 8 cores and 16 threads provide a solid advantage over Intel’s 6 cores and 12 threads. The 6.6% multi-core deltas are consistent across three Cinebench versions, indicating a reliable, repeatable edge. For single-threaded tasks, the AMD part also wins, despite a lower boost clock, which points to superior architectural IPC from the Zen 3+ design.

The Intel Core i7-7800X retains relevance in specific platform scenarios. Its quad-channel DDR4 memory support and 28 PCIe Gen 3 lanes offer more memory channels and expansion capacity than the AMD part’s dual-channel DDR5 and 20 Gen 4 lanes. For systems that need many storage devices or high-bandwidth peripherals, the Intel platform’s I/O configuration may be preferable, even if its compute scores are lower.

However, for pure processing throughput, the choice is clear. The AMD Ryzen Embedded V3C18I outperforms the Intel Core i7-7800X in every recorded benchmark, does so at a fraction of the power draw, supports ECC memory, and remains in active production. The Intel part is end-of-life and carries a launch MSRP of $383. Users building new systems should favor the AMD part based on the benchmark record. Users with existing Socket 2066 platforms may find the Intel part adequate, but the data shows no performance scenario where it leads.

Specification Differences

| Specification | AMD Ryzen Embedded V3C18I | Intel Core i7-7800X |

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

| Cores | 8 | 6 |

| Threads | 16 | 12 |

| Base Clock | 1900.00 MHz | 3500.00 MHz |

| Boost Clock | 3.80 GHz | 4.00 GHz |

| TDP | 15 W | 140 W |

| Socket | AMD Socket FP7 | Intel Socket 2066 |

| Architecture | Zen 3+ | Skylake |

| Codename | Rembrandt | Skylake-X |

| Generation | Ryzen Embedded (Zen 3+ Rembrandt) | Core i7 (X-Series 7th Gen) |

| Process Node | 6 nm | 14 nm |

| Foundry | TSMC | Intel |

| L2 Cache | 512 KB (per core) | 1 MB (per core) |

| L3 Cache | 16 MB (shared) | 8.25 MB (shared) |

| Memory Support | DDR5 | DDR4 |

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

| Memory Bandwidth | 76.8 GB/s | 76.8 GB/s |

| ECC Memory | Yes | No |

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

| Multiplier Unlocked | No | Yes |

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

| Release Date | 2022-09-26 | 2017-06-25 |

| Launch MSRP | Not recorded | $383 |

| Part Number | 100-000000559 | SR3L4 |