Intel Core i3-1005G1 vs Intel Core i5-4670T Comparison

The Verdict

The benchmark data paints a surprisingly clear picture for a matchup between a 2013 desktop quad-core and a 2019 mobile dual-core. The Intel Core i3-1005G1 wins 7 of 8 head-to-head tests, despite having only 2 physical cores and 4 threads versus the i5-4670T's 4 cores and 4 threads. The i3-1005G1 leads in every Cinebench test (R15, R20, and R23, both single-core and multi-core) by margins between 5.3% and 6.3%. It also wins Geekbench single-core by 9.8%. The i5-4670T's only victory is a decisive 29.6% lead in Geekbench multi-core, scoring 2563 versus 1978.

For a builder choosing between these, the i3-1005G1 is the better all-around performer for everyday tasks and lightly threaded workloads. Its newer architecture delivers consistently higher scores across the Cinebench suite, which stresses both single-core and multi-core performance. The i5-4670T remains relevant only if your workload specifically favors the Geekbench multi-core pattern, where its extra two physical cores provide a substantial advantage. That said, the i3-1005G1's 7-to-1 win record and its significantly lower 15W TDP (versus 45W) make it the pragmatic pick for most use cases.

Architecture Differences

The two processors come from different eras and design philosophies. The i5-4670T is a Haswell desktop part built on Intel's 22 nm process, with 1,400 million transistors on a 177 mm² die. It uses the Intel Socket 1150 and supports DDR3 memory. The i3-1005G1 is an Ice Lake-U mobile chip on the newer 10 nm node, with a 123 mm² die size (transistor count is not listed in the data). It uses the Intel BGA 1526 socket and supports DDR4 memory with a listed memory bandwidth of 51.2 GB/s.

Core counts differ fundamentally: the i5-4670T has 4 cores and 4 threads, while the i3-1005G1 has 2 cores and 4 threads thanks to Hyper-Threading. Cache configurations also diverge. Both share 64 KB L1 and 256 KB L2 per core, but the i5-4670T has 6 MB of shared L3 cache versus 4 MB on the i3-1005G1. The i5-4670T's base clock is 2.30 GHz with a 3.30 GHz boost; the i3-1005G1 lists a 1200.00 MHz base clock (which appears to be a nominal value) and a 3.40 GHz boost clock. The i5-4670T runs at 45W TDP, while the i3-1005G1 sips just 15W.

Integrated graphics differ as well: Intel HD 4600 on the i5-4670T versus UHD Graphics on the i3-1005G1. Both support PCIe Gen 3 and dual-channel memory, and neither supports ECC memory. The i3-1005G1's production status is listed as "Active," while the i5-4670T's status is not specified. Neither CPU has an unlocked multiplier.

FAQ

Q: Which CPU has better multi-core performance in Cinebench?

A: The i3-1005G1 wins all three multi-core Cinebench tests. It scores 410 versus 384 in R15 (6.3% ahead), 1709 versus 1604 in R20 (6.1% ahead), and 4070 versus 3820 in R23 (6.1% ahead). This is notable because the i5-4670T has twice the physical cores.

Q: How does Geekbench compare between the two?

A: The results are split. The i5-4670T wins Geekbench multi-core with 2563 versus 1978, a 29.6% advantage. The i3-1005G1 wins Geekbench single-core with 1083 versus 977, a 9.8% lead.

Q: What are the TDP differences?

A: The i5-4670T has a 45W TDP, while the i3-1005G1 is rated at 15W. This makes the i3-1005G1 substantially more power-efficient, which is consistent with its mobile market segment.

Q: Which CPU supports DDR4 memory?

A: Only the i3-1005G1 supports DDR4. The i5-4670T is limited to DDR3. Both use dual-channel memory buses, but only the i3-1005G1 has a listed memory bandwidth of 51.2 GB/s.

Q: Are both CPUs from the same generation?

A: No. The i5-4670T is from the Haswell generation (released 2013-06-01), while the i3-1005G1 is from the Ice Lake generation with Sunny Cove-U cores (released 2019-07-31). The i3-1005G1 is built on a 10 nm process versus 22 nm for the i5-4670T.

Q: Which CPU is better for single-threaded workloads?

A: The i3-1005G1 wins every single-core benchmark in the data: Cinebench R15 (57 vs 54), R20 (241 vs 226), R23 (574 vs 539), and Geekbench (1083 vs 977). Margins range from 5.3% to 9.8%.

Specification Differences

| Specification | Intel Core i5-4670T | Intel Core i3-1005G1 |

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

| Cores | 4 | 2 |

| Threads | 4 | 4 |

| Base Clock | 2.30 GHz | 1200.00 MHz |

| Boost Clock | 3.30 GHz | 3.40 GHz |

| TDP | 45W | 15W |

| Socket | Intel Socket 1150 | Intel BGA 1526 |

| Architecture | Haswell | Ice Lake |

| Codename | Haswell | Ice Lake-U |

| Generation | Core i5 (Haswell) | Core i3 (Sunny Cove-U) |

| Process Node | 22 nm | 10 nm |

| Die Size | 177 mm² | 123 mm² |

| Transistors | 1,400 million | Not listed |

| L3 Cache | 6 MB (shared) | 4 MB (shared) |

| Memory Support | DDR3 | DDR4 |

| Memory Bandwidth | Not listed | 51.2 GB/s |

| Integrated Graphics | Intel HD 4600 | UHD Graphics |

| Market Segment | Desktop | Mobile |

| Production Status | Not listed | Active |

| Release Date | 2013-06-01 | 2019-07-31 |

| Part Number | SR14P | SRG0SSRGKF |

Head-to-Head Benchmarks

The i3-1005G1 dominates the Cinebench suite. In Cinebench R15 multi-core, it scores 410 against the i5-4670T's 384, a 6.3% advantage. The single-core R15 result is closer: 57 versus 54, a 5.3% edge. Moving to R20, the i3-1005G1 leads multi-core by 6.1% (1709 vs 1604) and single-core by 6.2% (241 vs 226). The pattern holds in R23: multi-core 4070 versus 3820 (6.1% ahead), single-core 574 versus 539 (6.1% ahead). These consistent margins across all three Cinebench versions suggest the i3-1005G1's architectural efficiency offsets its core-count disadvantage.

Geekbench tells a different story. The i5-4670T wins multi-core decisively at 2563 versus 1978, a 29.6% margin. This is the largest swing in either direction across all tests. The i3-1005G1 counters with a 9.8% win in Geekbench single-core (1083 vs 977). The multi-core Geekbench result is the only test where the i5-4670T's two extra physical cores translate into a clear victory, and the margin is substantial enough to matter for workloads that scale with core count.

Where Each One Wins

The i3-1005G1 wins in every Cinebench scenario, both single-core and multi-core, across three different benchmark versions. This makes it the stronger choice for rendering workloads that follow the Cinebench pattern, even though the i5-4670T has more physical cores. The i3-1005G1 also wins Geekbench single-core, indicating better performance in lightly threaded applications. Its 15W TDP versus 45W makes it far more suitable for compact or power-constrained systems, and its newer 10 nm process and DDR4 support point to a more modern platform overall.

The i5-4670T's sole win is Geekbench multi-core, where its 29.6% advantage is the largest margin in the entire comparison. This suggests that for workloads that resemble Geekbench's multi-core test — typically tasks that scale well with physical cores — the i5-4670T has a meaningful edge. The i5-4670T also has more L3 cache (6 MB vs 4 MB) and a desktop socket (Intel Socket 1150), which could matter if you need a socketed CPU for an existing desktop motherboard. Its 45W TDP, while higher, is still modest by desktop standards.

In practical terms, the i3-1005G1 is the better all-rounder. Its 7-1 benchmark win record, higher single-core scores, and dramatically lower power draw make it the sensible default. The i5-4670T only makes sense if your specific workloads are heavily multi-threaded in the Geekbench style and you already have a compatible Socket 1150 platform. Both CPUs sit at the 35th percentile among all CPUs, and their average benchmark scores are nearly identical (1271 for the i5-4670T, 1265 for the i3-1005G1). The i3-1005G1 edges out the i5-4670T by 0.5% in the average score comparison, while the i5-4670T's nearest rival list shows a 0.5% delta in its favor against the i3-1005G1 — a statistical tie that the head-to-head results ultimately break in favor of the newer chip.