Intel Core i7-1068NG7 vs Intel Core i7-5775C Comparison

The benchmark data presents a clear picture: the Intel Core i7-1068NG7 decisively outperforms the Intel Core i7-5775C across every single Cinebench test recorded, with a consistent margin of roughly 19% in both single-core and multi-core workloads. Despite the i7-5775C being a desktop part with a higher base clock and a much higher TDP, the newer Ice Lake mobile processor is the faster chip in every measured scenario, while also consuming significantly less power.

Head-to-Head Benchmarks

The results from the head-to-head comparison are unambiguous. The Intel Core i7-1068NG7 wins all six recorded benchmarks, with no victories for the Intel Core i7-5775C. The performance gap is remarkably uniform, suggesting a fundamental architectural advantage rather than a workload-specific edge.

In the multi-core tests, the i7-1068NG7’s dominance is consistent. In Cinebench R15, it scores 787 points against the i7-5775C’s 660, a 19.2% advantage. This pattern repeats in Cinebench R20, where the newer chip scores 3280 versus 2750, a 19.3% lead. The R23 multi-core test shows the same story: 7810 for the i7-1068NG7 versus 6549 for the i7-5775C, another 19.3% delta. This consistency across different versions of the same renderer indicates that the i7-1068NG7’s advantage scales directly with workload, not just in short bursts.

Single-core performance tells a nearly identical tale. The i7-1068NG7 leads by 18.3% in Cinebench R15 (110 vs 93), by 19.1% in Cinebench R20 (462 vs 388), and by 19.3% in Cinebench R23 (1102 vs 924). The fact that the single-core margins are nearly identical to the multi-core margins is significant; it means the i7-1068NG7 is not just benefiting from better multi-threading scaling, but from a superior core architecture that is faster per-thread. The i7-5775C’s higher 3.30 GHz base clock and 3.70 GHz boost clock are simply not enough to overcome the IPC (instructions per clock) advantage of the newer Ice Lake design.

The average benchmark scores further contextualize these results. The i7-1068NG7 has an average benchmark score of 2259, while the i7-5775C sits at 2224. Both processors land in the 47th percentile of all CPUs, meaning they are statistically similar in overall standing within the broader market. The i7-1068NG7’s nearest rival is the Intel Core i3-10305 with an average score of 2264 (a -0.2% delta), while the i7-5775C is most closely matched with the Intel Core i7-8559U, which scores 2225 (a 0% delta). These figures show that while the i7-1068NG7 is clearly superior to the i7-5775C, neither chip is a standout performer in the wider landscape; they are both solidly mid-pack processors with a 35-point difference in their aggregate scores.

Architecture Differences

The two processors represent fundamentally different design philosophies and eras. The Intel Core i7-1068NG7 is built on the 10 nm Ice Lake-U architecture, specifically using the Sunny Cove microarchitecture. It is a mobile part, soldered to the Intel BGA 1344 socket, with a 28W TDP. The Intel Core i7-5775C, in contrast, is a desktop Broadwell chip built on a 14 nm process. It uses the older Intel Socket 1150 and has a significantly higher 65W TDP. This power difference is stark: the i7-1068NG7 delivers superior performance while drawing less than half the power budget of its rival.

Memory support is another major differentiator. The i7-1068NG7 supports DDR4 memory over a dual-channel bus, providing a theoretical memory bandwidth of 51.2 GB/s. The i7-5775C is limited to DDR3, also on a dual-channel bus, with a theoretical bandwidth of just 25.6 GB/s. This is a critical advantage for the newer chip; it has exactly double the memory bandwidth, which directly benefits memory-intensive workloads and helps feed the faster cores. The i7-1068NG7 also features a larger shared L3 cache of 8 MB, compared to the 6 MB shared cache on the i7-5775C. The L1 and L2 caches are identical at 64 KB and 256 KB per core, respectively.

The die sizes and integrated graphics also differ considerably. The i7-1068NG7 has a die size of 123 mm², while the i7-5775C is much larger at 182 mm². The newer chip integrates Iris Plus graphics, whereas the older desktop part features Iris Pro Graphics 6200. The production status also contrasts sharply: the i7-1068NG7 is marked as end-of-life, while the i7-5775C is listed as active. The i7-5775C does have one unique feature: an unlocked multiplier, allowing for overclocking, whereas the i7-1068NG7’s multiplier is locked. The launch MSRP for the i7-1068NG7 was $320, while the i7-5775C launched at $366.

Where Each One Wins

Based on the available benchmark data, the Intel Core i7-1068NG7 wins in every measured category. There is no scenario in the dataset where the i7-5775C comes out ahead. This makes the use-case split straightforward, though some qualitative distinctions can be made.

The i7-1068NG7 is the clear choice for any workload that prioritizes raw compute speed, particularly those that are sensitive to both single-threaded latency and multi-threaded throughput. Its 19.3% lead in Cinebench R23 multi-core (7810 vs 6549) makes it the better option for rendering tasks, video encoding, and any parallelized content creation work. The 19.3% advantage in R23 single-core (1102 vs 924) also makes it superior for general application responsiveness, office productivity, and lightly-threaded software that relies on a single fast core. The doubled memory bandwidth (51.2 GB/s vs 25.6 GB/s) further reinforces its suitability for data-heavy tasks.

The i7-5775C’s strengths are not apparent in these performance figures. Its only advantages are qualitative: it is a desktop part with an unlocked multiplier, meaning it can be overclocked by the user to potentially close the performance gap. It also has a higher base clock of 3.30 GHz versus 2.30 GHz on the i7-1068NG7, which could offer better out-of-the-box responsiveness in short, non-sustained bursts. However, the benchmark results show that the i7-1068NG7’s higher boost clock of 4.10 GHz and superior architecture overcome this base clock disadvantage in sustained workloads. The i7-5775C is also listed as an active product, suggesting it may be easier to purchase new, whereas the i7-1068NG7 is end-of-life.

FAQ

Q: Which processor is faster in multi-core workloads?

A: The Intel Core i7-1068NG7 is consistently faster. It leads by 19.2% in Cinebench R15 (787 vs 660), 19.3% in Cinebench R20 (3280 vs 2750), and 19.3% in Cinebench R23 (7810 vs 6549).

Q: How does single-core performance compare between the two?

A: The Intel Core i7-1068NG7 also wins all single-core tests, with a lead of 18.3% in R15 (110 vs 93), 19.1% in R20 (462 vs 388), and 19.3% in R23 (1102 vs 924).

Q: Is the older Intel Core i7-5775C more power-efficient?

A: No. The i7-1068NG7 has a TDP of 28W, while the i7-5775C has a TDP of 65W. The newer chip delivers significantly better performance while being rated for less than half the power draw.

Q: Do these processors support the same type of memory?

A: No. The i7-1068NG7 supports DDR4 memory with a bandwidth of 51.2 GB/s, while the i7-5775C supports DDR3 with a bandwidth of 25.6 GB/s. The newer chip has double the theoretical memory bandwidth.

Q: Which processor has more cache?

A: The i7-1068NG7 has 8 MB of shared L3 cache, while the i7-5775C has 6 MB. Both have 64 KB of L1 and 256 KB of L2 cache per core.

Q: Can the i7-5775C be overclocked?

A: Yes, the i7-5775C has an unlocked multiplier, making it overclockable. The i7-1068NG7 has a locked multiplier and cannot be overclocked.

Specification Differences

| Field | Intel Core i7-1068NG7 | Intel Core i7-5775C |

| :--- | :--- | :--- |

| Base Clock | 2.30 GHz | 3.30 GHz |

| Boost Clock | 4.10 GHz | 3.70 GHz |

| TDP | 28W | 65W |

| Socket | Intel BGA 1344 | Intel Socket 1150 |

| Architecture | Ice Lake | Broadwell |

| Codename | Ice Lake-U | Broadwell |

| Generation | Core i7 (Sunny Cove-U) | Core i7 (Broadwell) |

| Process Node | 10 nm | 14 nm |

| Die Size | 123 mm² | 182 mm² |

| L3 Cache | 8 MB (shared) | 6 MB (shared) |

| Memory Support | DDR4 | DDR3 |

| Memory Bandwidth | 51.2 GB/s | 25.6 GB/s |

| PCIe | Gen 3 | Gen 3, 16 Lanes (CPU only) |

| Integrated Graphics | Iris Plus | Iris Pro Graphics 6200 |

| Market Segment | Mobile | Desktop |

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

| Release Date | 2019-07-31 | 2015-05-14 |

| Launch MSRP | $320 | $366 |

| Multiplier Unlocked | No | Yes |

| Part Number | SRG0U | SR2AG |