Intel Core i7-1165G7 vs Intel Core i7-3770 Comparison

Where Each One Wins

The benchmark split is stark: the Intel Core i7-1165G7 wins 17 of 19 head-to-head tests, while the Intel Core i7-3770 takes only 2. That near-total dominance tells a clear story about generational progress, but the two wins for the older chip are not trivial. The i7-3770 wins passmark data compression with a score of 105,424 versus 103,497, a margin of just 1.9%. It also wins passmark random string sorting with 14,060 versus 12,698, a more comfortable 10.7% edge. These are narrow, specialized workloads where the older desktop part manages to hold its own.

Everywhere else, the i7-1165G7 asserts control. The largest single win comes in passmark data encryption, where the Tiger Lake part scores 5,561 versus 1,866, a 66.4% gap. That is not a small advantage; it is a generational chasm in a security-sensitive workload. The next biggest margin is in Geekbench single-core, where the i7-1165G7 leads by 48.3%, scoring 1,578 against 816. The pattern is consistent: anything that relies on modern instruction efficiency, single-thread throughput, or per-core capability favors the newer mobile chip.

The use-case split is therefore about workload type. The i7-3770 retains relevance in specific data-handling tasks: compression and sorting. The i7-1165G7 is the choice for almost everything else, particularly encryption, floating-point math, integer math, physics simulation, and all Cinebench render tests. For productivity workloads that scale with modern architecture, the newer part is overwhelmingly preferred. For narrow data-processing tasks that reward older memory or cache behavior, the desktop part retains a niche.

Architecture Differences

The two processors come from different eras of Intel design. The i7-3770 uses the Ivy Bridge architecture on a 22 nm process, built at Intel's foundry with 1,400 million transistors on a 160 mm² die. The i7-1165G7 uses Tiger Lake, specifically Willow Cove-U, on a 10 nm process with a 144 mm² die size. Transistor count for the Tiger Lake part is not recorded in the database, but the process shrink is clear.

Core and thread counts are identical: both have 4 cores and 8 threads. The differences appear in cache hierarchy. The i7-3770 has 64 KB of L1 per core, 256 KB of L2 per core, and 8 MB of shared L3. The i7-1165G7 has 80 KB of L1 per core, 1.25 MB of L2 per core, and 12 MB of shared L3. The newer part has more cache at every level, with the L2 difference being particularly pronounced: 1.25 MB per core versus 256 KB per core is a 5x jump.

Clock behavior also diverges. The i7-3770 runs at a base of 3.40 GHz and boosts to 3.90 GHz. The i7-1165G7 has a lower base of 2.80 GHz but a much higher boost of 4.70 GHz. That boost delta of 0.80 GHz is a major factor in single-thread performance. The thermal design power tells the mobility story: the i7-3770 is rated at 77 W, while the i7-1165G7 is rated at 28 W. The newer chip delivers more performance while being rated for less than half the power draw.

Memory support differs as well. The i7-3770 uses DDR3 in dual-channel configuration with a recorded bandwidth of 25.6 GB/s. The i7-1165G7 supports DDR4 and LPDDR4X, also dual-channel, with no bandwidth figure recorded. PCIe connectivity is another generational split: the i7-3770 offers Gen 3 with 16 lanes (CPU only), while the i7-1165G7 offers Gen 4 with 4 lanes (CPU only). The socket situation is entirely different, with the desktop part on Intel Socket 1155 and the mobile part on Intel BGA 1449.

Integrated graphics also differ. The i7-3770 pairs with Intel HD 4000, while the i7-1165G7 includes Iris Xe-LP Graphics G7 96EU. The Tiger Lake iGPU is a more capable design, though neither part is a gaming-focused solution. Both lack ECC memory support and both have locked multipliers.

Head-to-Head Benchmarks

The Cinebench series shows a uniform victory for the i7-1165G7 across every variant. In Cinebench R15 multi-core, the newer chip scores 835 against 549, a 34.3% lead. Single-core R15 shows 117 versus 77, a 34.2% gap. Cinebench R20 multi-core is 3,483 versus 2,289, again 34.3%. Single-core R20 is 491 versus 322, 34.4%. Cinebench R23 multi-core is 8,293 versus 5,450, 34.3%, and single-core R23 is 1,170 versus 769, 34.3%. The consistency of that 34% delta across every Cinebench generation is remarkable; it suggests a stable architectural advantage rather than workload-specific luck.

Geekbench results widen the gap. Multi-core shows 4,467 versus 2,705, a 39.4% lead for the i7-1165G7. Single-core is even more lopsided: 1,578 versus 816, a 48.3% advantage. That single-core result is the second-largest margin in the entire comparison, trailing only the encryption test.

PassMark tests tell a more varied story. The i7-1165G7 wins integer math with 33,349 versus 22,945, a 31.2% lead. Floating-point math is 19,830 versus 11,628, a 41.4% margin. Extended instructions show 7,323 versus 4,476, a 38.9% gap. Prime number finding is 46 versus 29, a 37% lead. Physics simulation is 712 versus 458, a 35.7% margin. Multithread performance is 9,958 versus 6,414, a 35.6% lead. Single-thread is 2,763 versus 2,073, a 25% advantage. Data encryption is the biggest outlier at 66.4% in favor of the newer chip, with scores of 5,561 and 1,866.

The two i7-3770 wins are worth examining. Data compression is nearly a dead heat: 105,424 versus 103,497, just 1.9% apart. Random string sorting is a clearer victory at 10.7%, with the older chip scoring 14,060 against 12,698. These are the only tests where the Ivy Bridge part demonstrates a real advantage, and both fall in the data-manipulation category.

FAQ

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

A: The i7-1165G7 wins every multi-core test in the comparison. Cinebench R23 multi-core shows 8,293 versus 5,450, a 34.3% lead. Geekbench multi-core is 4,467 versus 2,705, a 39.4% margin. PassMark multithread is 9,958 versus 6,414, a 35.6% gap.

Q: Does the older i7-3770 win any benchmarks?

A: Yes, it wins exactly two of the 19 head-to-head tests. It takes passmark data compression with 105,424 versus 103,497 (1.9% lead) and passmark random string sorting with 14,060 versus 12,698 (10.7% lead).

Q: How large is the single-core performance gap?

A: The i7-1165G7 leads by 25% in PassMark single-thread (2,763 versus 2,073), by 34.2% in Cinebench R15 single-core (117 versus 77), and by 48.3% in Geekbench single-core (1,578 versus 816).

Q: What explains the i7-1165G7's huge encryption advantage?

A: The data shows a 66.4% lead in passmark data encryption, with scores of 5,561 versus 1,866. This is the largest margin in the entire comparison and likely reflects the newer architecture's improved instruction handling, though the database does not specify which specific features drive this result.

Q: Do both processors have the same core and thread counts?

A: Yes, both have 4 cores and 8 threads. The differences are in cache size, clock speed, process node, and memory support, not in core count.

Q: Which processor has more cache?

A: The i7-1165G7 has more at every level. It offers 80 KB of L1 per core versus 64 KB, 1.25 MB of L2 per core versus 256 KB, and 12 MB of shared L3 versus 8 MB.

The Verdict

The data points to one clear conclusion for almost every workload: the Intel Core i7-1165G7 is the superior processor. It wins 17 of 19 benchmark comparisons, often by substantial margins. The 34.3% lead across all Cinebench R23 tests, the 48.3% lead in Geekbench single-core, and the 66.4% lead in data encryption all demonstrate a decisive generational advantage. For users running rendering, encryption, floating-point math, integer math, or physics workloads, the i7-1165G7 is the obvious pick.

The i7-3770 has a narrow lane of relevance. Its 10.7% win in random string sorting and 1.9% win in data compression suggest that certain data-handling tasks still favor the older desktop design. Anyone running those specific workloads, and those workloads alone, might prefer the Ivy Bridge part. The i7-3770 also maintains a 66th percentile ranking against all CPUs, just one point above the i7-1165G7's 65th percentile, and its average benchmark score of 9,706 is actually higher than the newer chip's 9,235.

That average score discrepancy is curious. The i7-3770 edges the i7-1165G7 in average benchmark score despite losing 17 of 19 head-to-head tests. The explanation lies in the benchmark sets: the i7-3770's recorded suite includes results that skew its average upward, while the i7-1165G7's suite includes 3DMark tests that the older part does not have recorded. The overall percentile ranking is nearly identical, which suggests that in the broader CPU landscape, these two parts sit at essentially the same tier despite their very different performance profiles.

The launch MSRP for the i7-3770 was $278, and the launch MSRP for the i7-1165G7 was $426. For users who need the encryption, rendering, and single-thread performance of the newer part, the choice is clear. For users with workloads centered on compression and sorting, the older desktop chip retains a measurable, if narrow, edge.

Specification Differences

| Specification | Intel Core i7-3770 | Intel Core i7-1165G7 |

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

| Base clock | 3.40 GHz | 2.80 GHz |

| Boost clock | 3.90 GHz | 4.70 GHz |

| TDP | 77 W | 28 W |

| Socket | Intel Socket 1155 | Intel BGA 1449 |

| Architecture | Ivy Bridge | Tiger Lake |

| Codename | Ivy Bridge | Tiger Lake-U |

| Generation | Core i7 (Ivy Bridge) | Core i7 (Willow Cove-U) |

| Process node | 22 nm | 10 nm |

| Die size | 160 mm² | 144 mm² |

| Transistors | 1,400 million | Not recorded |

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

| L2 cache | 256 KB (per core) | 1.25 MB (per core) |

| L3 cache | 8 MB (shared) | 12 MB (shared) |

| Memory support | DDR3 | DDR4, LPDDR4X |

| Memory bandwidth | 25.6 GB/s | Not recorded |

| PCIe | Gen 3, 16 Lanes (CPU only) | Gen 4, 4 Lanes (CPU only) |

| Integrated graphics | Intel HD 4000 | Iris Xe-LP Graphics G7 96EU |

| Market segment | Desktop | Mobile |

| Release date | 2012-04-28 | 2020-09-01 |

| Part number | SR0PK | SRK02 |

| Launch MSRP | $278 | $426 |