CPU Comparison

The Intel Core i3-12100 and Intel Core i7-7700 are both 4-core, 8-thread desktop processors, but they represent very different eras of Intel design. The data shows a near-total victory for the newer i3-12100, which wins 18 of the 19 head-to-head benchmark comparisons. The single exception is a narrow loss in one PassMark sorting test. This is not a close contest; the i3-12100 outperforms the older i7-7700 in nearly every measurable workload, often by substantial margins that range from 16% to over 140%.

Where Each One Wins

The Intel Core i3-12100 dominates across the entire benchmark suite, making it the clear choice for virtually all computing tasks. In multi-threaded workloads, the i3-12100 shows a commanding lead, with Cinebench R23 multicore scores of 10623 versus 7344 for the i7-7700, a 44.6% advantage. This translates to faster rendering in 3D applications and better performance in video encoding and other parallel tasks. The Geekbench multicore result reinforces this, with the i3-12100 scoring 7214 against 4640, a 55.5% gap. The PassMark multithread test also favors the newer chip, showing 12170 versus 8635, a 40.9% improvement.

Single-threaded performance is where the architectural gap becomes most apparent. The i3-12100 leads by 44.2% in Cinebench R15 single-core (150 vs 104), 44.6% in R20 (629 vs 435), and 44.7% in R23 (1499 vs 1036). The Geekbench single-core score shows a 43.3% lead (1962 vs 1369), while PassMark single-thread shows a 29.9% advantage (3173 vs 2442). These consistent single-thread wins mean the i3-12100 will feel snappier in everyday applications, web browsing, and lightly-threaded games, even before considering the multi-core advantages.

The i7-7700 claims only one victory: PassMark random string sorting, where it scores 15509 against 14286 for the i3-12100, a 7.9% edge. This specific test appears to favor the older architecture’s memory subsystem or instruction handling, but it is an isolated result. In all other data, the i3-12100 wins, with particularly large margins in encryption (142.8% faster), prime number finding (75% faster), and floating-point math (65.7% faster). For any mixed workload, the i3-12100 is the superior processor.

Architecture Differences

The two CPUs are built on fundamentally different architectures separated by five years of development. The i3-12100 uses the Alder Lake architecture on a 10 nm process node, while the i7-7700 uses the Kaby Lake architecture on a 14 nm node. This process shrink allows the newer chip to deliver higher performance at lower power. The i3-12100 has a TDP of 60 watts, while the i7-7700 has a TDP of 65 watts, meaning the i3-12100 achieves its superior scores while consuming less power. The die size for the i3-12100 is 163 mm²; the i7-7700’s die size is not listed.

Cache configurations differ significantly. The i3-12100 has 80 KB of L1 cache per core and 1.25 MB of L2 cache per core, compared to 64 KB and 256 KB per core respectively for the i7-7700. The shared L3 cache is 12 MB on the i3-12100 versus 8 MB on the i7-7700. This larger, faster cache hierarchy is a major contributor to the i3-12100’s single-thread and multi-thread advantages. The i3-12100 also supports both DDR4 and DDR5 memory, while the i7-7700 is limited to DDR4. Both use dual-channel memory buses, and the i7-7700 lists a memory bandwidth of 38.4 GB/s; the i3-12100 does not list a bandwidth figure.

Platform support is another key differentiator. The i3-12100 uses Intel Socket 1700 and supports PCIe Gen 5 with 16 lanes from the CPU, while the i7-7700 uses Intel Socket 1151 and supports PCIe Gen 3 with 16 lanes. This means the i3-12100 is compatible with modern motherboards and offers faster connectivity for GPUs and NVMe drives. The integrated graphics also differ: the i3-12100 has UHD Graphics 730, while the i7-7700 has HD 630. Neither chip has an unlocked multiplier, and both are listed as Active in production. The i3-12100 was released on 2022-01-03, while the i7-7700 was released on 2017-01-02.

Head-to-Head Benchmarks

The largest margin of victory for the i3-12100 comes in PassMark data encryption, where it scores 7222 against 2974, a staggering 142.8% improvement. This suggests the newer chip has significantly better cryptographic instruction support or faster execution of those operations. The next largest win is in PassMark find prime numbers, with a 75% advantage (49 vs 28), followed by floating-point math at 65.7% (28015 vs 16904). These results indicate the i3-12100’s execution units are substantially more efficient at mathematical and cryptographic workloads.

In the Cinebench suite, the i3-12100’s wins are remarkably consistent at 44.6% across R15, R20, and R23 multicore tests, and similarly consistent at 44.2% to 44.7% in single-core tests. This uniformity suggests the performance gap is architectural rather than workload-specific. The Geekbench multicore score shows the largest Cinebench-family gap at 55.5%, while single-core shows 43.3%. PassMark integer math shows a 29.6% lead (35678 vs 27538), and PassMark multithread shows 40.9% (12170 vs 8635). The PassMark physics test shows a 32% advantage (776 vs 588).

The data compression test shows a more modest 16% lead for the i3-12100 (142060 vs 122429), and extended instructions show 19.4% (9702 vs 8128). The single-thread PassMark scores show a 29.9% lead (3173 vs 2442). The only reverse result is random string sorting, where the i7-7700 leads by 7.9% (15509 vs 14286). This is the sole bright spot for the older chip, and it does not offset the overall trend. Across all 19 head-to-head tests, the i3-12100’s average benchmark score is 12054, while the i7-7700’s is 11914, a 1.2% difference according to the nearestRivals data.

FAQ

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

A: The Intel Core i3-12100 is significantly faster. It scores 10623 in Cinebench R23 multicore versus 7344 for the i7-7700, a 44.6% advantage. Geekbench multicore shows a 55.5% lead (7214 vs 4640), and PassMark multithread shows a 40.9% lead (12170 vs 8635).

Q: Is the i3-12100 better for single-threaded tasks?

A: Yes, the i3-12100 wins all single-thread tests. Cinebench R23 single-core shows 1499 versus 1036, a 44.7% lead. Geekbench single-core shows 1962 versus 1369, a 43.3% lead. PassMark single-thread shows 3173 versus 2442, a 29.9% lead.

Q: Does the i7-7700 win any benchmarks?

A: The i7-7700 wins exactly one out of 19 head-to-head tests: PassMark random string sorting, with a score of 15509 versus 14286 for the i3-12100, a 7.9% advantage.

Q: What is the biggest performance gap between the two?

A: The largest gap is in PassMark data encryption, where the i3-12100 scores 7222 versus 2974 for the i7-7700, a 142.8% improvement. The second largest is PassMark find prime numbers, with a 75% lead.

Q: How do their average benchmark scores compare?

A: The i3-12100 has an average benchmark score of 12054, while the i7-7700 has an average of 11914. The i3-12100 is 1.2% ahead on this metric, and both CPUs sit at the 67th percentile compared to all CPUs.

Q: Do they have the same core and thread counts?

A: Yes, both have 4 cores and 8 threads. However, the i3-12100 uses a 10 nm Alder Lake architecture with 12 MB of L3 cache, while the i7-7700 uses a 14 nm Kaby Lake architecture with 8 MB of L3 cache.

The Verdict

The data is unambiguous: the Intel Core i3-12100 is the superior processor in nearly every way. It wins 18 of 19 benchmark comparisons, with the sole loss being a narrow 7.9% deficit in random string sorting. For users building a new system, the i3-12100 offers dramatically better performance in both single-threaded and multi-threaded tasks, with margins ranging from 16% in data compression to 142.8% in encryption. Its modern architecture also brings support for DDR5 memory, PCIe Gen 5, and a smaller 10 nm process node, all while consuming less power (60 watts TDP versus 65 watts).

The i7-7700 is now clearly outdated. Its only advantage is the single random string sorting test, which is unlikely to be a deciding factor for any real-world application. The i3-12100 also has a higher average benchmark score (12054 vs 11914) and is listed among the i7-7700’s nearest rivals with a 1.2% delta, which understates the true performance gap in most specific workloads. For anyone choosing between these two, the i3-12100 is the rational pick. The i7-7700’s 4 cores and 8 threads cannot compensate for its older architecture, smaller caches, and slower memory support. The verdict is straightforward: the i3-12100 is a modern, capable processor, while the i7-7700 is a legacy part that only wins a single sorting benchmark.

Specification Differences

| Specification | Intel Core i3-12100 | Intel Core i7-7700 |

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

| Architecture | Alder Lake | Kaby Lake |

| Process Node | 10 nm | 14 nm |

| Socket | Intel Socket 1700 | Intel Socket 1151 |

| Base Clock | 3.30 GHz | 3.60 GHz |

| Boost Clock | 4.30 GHz | 4.20 GHz |

| TDP | 60 W | 65 W |

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

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

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

| Memory Support | DDR4, DDR5 | DDR4 |

| Memory Bandwidth | Not listed | 38.4 GB/s |

| PCIe | Gen 5, 16 Lanes | Gen 3, 16 Lanes |

| Integrated Graphics | UHD Graphics 730 | HD 630 |

| Release Date | 2022-01-03 | 2017-01-02 |

| Launch MSRP | $122 | Not listed |

| Part Number | SRL62 | SR338 |