Intel Core i3-1115G4E vs Intel Core i3-8100T Comparison

Head-to-Head Benchmarks

The benchmark data presents a surprisingly close contest between these two processors, despite their very different designs. Across the eight recorded tests, the Intel Core i3-1115G4E takes seven wins, while the Intel Core i3-8100T manages only one. Yet the margins in most Cinebench tests are razor-thin, making the overall picture more nuanced than the raw win count suggests.

Starting with Cinebench R15 multicore, the i3-1115G4E scores 452 against the i3-8100T's 450, a delta of just 0.4%. That is effectively a tie, and the single-core R15 result is literally identical at 63 points for both chips. Moving to Cinebench R20, the pattern repeats: multicore shows 1887 for the i3-1115G4E versus 1876 for the i3-8100T, a 0.6% edge, while single-core comes in at 266 versus 264, a 0.8% advantage. Cinebench R23 follows the same script, with the i3-1115G4E leading 4493 to 4467 in multicore (0.6%) and 634 to 630 in single-core (0.6%).

The decisive divergence appears in Geekbench. In single-core, the i3-1115G4E posts 1702 against the i3-8100T's 1104, a massive 54.2% advantage. That is the single largest delta in the entire comparison and reflects the architectural gap between the two generations. However, in Geekbench multicore, the i3-8100T strikes back with 3142 versus 2972, a 5.4% lead. This is the only test where the older desktop chip wins, and it matters because it shows the value of having two additional physical cores in certain workloads.

The average benchmark scores reinforce this split. The i3-1115G4E carries an average score of 1559 across all tests, while the i3-8100T averages 1500. The i3-1115G4E sits at the 39th percentile among all CPUs in the database, with nearest rivals including the AMD Opteron 6276 (1560, 0.1% ahead), the AMD FX-8350 (1557, 0.1% behind the i3-1115G4E's average), and the Intel Xeon E3-1268L v5 (1557, 0.1% behind). The i3-8100T lands at the 38th percentile, with the Intel Core i7-3770S (1498, 0.1% behind the i3-8100T), the Intel Core i5-4590S (1493, 0.5% behind), and the AMD Opteron 6344 (1492, 0.6% behind) as its closest competitors. The i3-8100T's closest rival in the database is the Intel Core i7-8665U at 1513, which sits 0.7% ahead.

For buyers, the headline is this: in most rendering-style benchmarks, these two chips are within 1% of each other. The i3-1115G4E never loses a Cinebench test by any margin, but its wins are small. The i3-8100T's Geekbench multicore victory is the only double-digit swing in its favor, and it is still less than 6%. The i3-1115G4E's Geekbench single-core win, by contrast, is overwhelming.

Architecture Differences

The two processors come from different Intel families and target different market segments. The i3-1115G4E is a Tiger Lake-U part built for mobile systems, while the i3-8100T is a Coffee Lake desktop chip. The i3-1115G4E uses the Willow Cove-U core architecture on a 10 nm process, whereas the i3-8100T uses the Coffee Lake architecture on a 14 nm process. Both are fabricated by Intel, but the node difference is significant for power and efficiency characteristics.

Core counts differ substantially. The i3-1115G4E has 2 cores and 4 threads, while the i3-8100T has 4 cores and 4 threads. The i3-8100T has no hyper-threading, so its thread count equals its core count. The i3-1115G4E, despite having half the physical cores, still reaches 4 threads through hyper-threading. Base clocks favor the i3-8100T at 3.10 GHz versus 2.20 GHz for the i3-1115G4E. However, the i3-1115G4E has a boost clock of 3.90 GHz, while the i3-8100T has no listed boost clock, meaning it runs at its fixed base frequency.

Cache layouts differ in notable ways. The i3-1115G4E has 80 KB of L1 per core, 1.25 MB of L2 per core, and 6 MB of shared L3. The i3-8100T has 64 KB of L1 per core, 256 KB of L2 per core, and also 6 MB of shared L3. The i3-1115G4E's much larger per-core L2 cache is a direct consequence of the newer architecture and contributes to its single-core performance advantage. Die size also differs: the i3-1115G4E measures 144 mm², while the i3-8100T is 126 mm².

Memory support shows a similar split. The i3-1115G4E supports DDR4 and LPDDR4X, both in dual-channel mode. The i3-8100T supports only DDR4, also dual-channel, and has a listed memory bandwidth of 38.4 GB/s. The i3-1115G4E has no listed memory bandwidth figure. ECC memory is supported on the i3-8100T but not on the i3-1115G4E. PCIe capabilities also differ: the i3-1115G4E offers Gen 4 with 4 lanes (CPU only), while the i3-8100T offers Gen 3 with 16 lanes (CPU only). That is a major difference for desktop expansion, though less relevant in a mobile context.

Integrated graphics differ as well. The i3-1115G4E includes UHD Graphics G4 with 48 execution units. The i3-8100T includes UHD Graphics 630. The socket situation is entirely different: the i3-1115G4E uses Intel BGA 1449, meaning it is soldered to the board, while the i3-8100T uses Intel Socket 1151, a replaceable desktop socket. Thermal design power reflects the intended use: 15 W for the i3-1115G4E versus 35 W for the i3-8100T. The mobile chip is built for low-power systems, while the desktop chip is a low-power desktop part but still more than double the TDP.

Production status also differs. The i3-1115G4E is listed as active, while the i3-8100T is end-of-life. Release dates place the i3-1115G4E in September 2020 and the i3-8100T in April 2018. The i3-1115G4E has a launch MSRP of $285, while the i3-8100T had a launch MSRP of $117. Neither chip has an unlocked multiplier.

Where Each One Wins

The i3-1115G4E dominates single-core performance across every benchmark in the database. Its Geekbench single-core score of 1702 is 54.2% ahead of the i3-8100T, and its Cinebench single-core advantages, while smaller, are consistent: 0% in R15, 0.8% in R20, and 0.6% in R23. For tasks that depend on responsiveness, lightly threaded applications, or older software that cannot use many cores, the i3-1115G4E is clearly the better performer. Its 3.90 GHz boost clock and newer Willow Cove architecture with much larger L2 cache (1.25 MB per core versus 256 KB per core) explain this edge.

The i3-8100T wins only in Geekbench multicore, scoring 3142 versus 2972, a 5.4% advantage. This is the only test where its four physical cores overcome the i3-1115G4E's architectural advantages. In Cinebench multicore tests, the i3-8100T actually loses by small margins despite having twice the core count, which suggests that the i3-1115G4E's higher boost clock and architectural efficiency compensate for its lower core count in those workloads. The i3-8100T's fixed 3.10 GHz clock and older 14 nm architecture limit its ability to pull ahead.

For workloads that scale well with cores and threads, the i3-8100T offers a modest edge in Geekbench multicore, but the margin is not overwhelming. For everything else, the i3-1115G4E is ahead. The i3-8100T also brings ECC memory support, which the i3-1115G4E lacks, and 16 PCIe Gen 3 lanes versus 4 PCIe Gen 4 lanes. That makes the i3-8100T more suitable for systems that need expansion cards or ECC memory, even though its raw performance in most tests is slightly behind.

The i3-1115G4E also has the advantage of being an active production part, whereas the i3-8100T is end-of-life. For new system designs, availability favors the i3-1115G4E. The i3-8100T's lower launch MSRP of $117 versus $285 for the i3-1115G4E reflects its older positioning, though both are low-cost parts in their respective segments.

The Verdict

The data points to a clear conclusion: the Intel Core i3-1115G4E is the better processor in almost every benchmark category. It wins 7 out of 8 head-to-head tests and holds a 54.2% single-core Geekbench advantage, which is the largest margin in the entire comparison. Its average benchmark score of 1559 exceeds the i3-8100T's 1500, and it places at the 39th percentile versus the 38th for the i3-8100T. The i3-1115G4E also comes from a newer architecture, uses a smaller 10 nm process, has a higher boost clock, and is still in active production.

The i3-8100T is not without merit. It wins Geekbench multicore by 5.4%, supports ECC memory, offers 16 PCIe Gen 3 lanes, and has a lower launch MSRP. For a desktop system where those features matter, it remains a viable option, especially given its end-of-life status may make it available at lower prices on the used market. However, its 35 W TDP is more than double the i3-1115G4E's 15 W, and its fixed 3.10 GHz clock means it cannot boost when needed.

For most users, the i3-1115G4E is the better choice. It delivers comparable or better multicore performance with half the cores, far better single-core performance, and does so at a much lower power envelope. The i3-8100T's only meaningful win is in Geekbench multicore, and even there the margin is modest. The i3-1115G4E is the chip to pick for mobile or low-power systems, compact desktops, or any build where single-core speed matters more than raw core count.

The i3-8100T should be reserved for the specific case where ECC support, desktop socket flexibility, or 16 PCIe lanes are non-negotiable requirements. In those scenarios, its performance gap is acceptable, and the data confirms it can still hold its own in multicore workloads. Otherwise, the i3-1115G4E is the stronger all-around part.

FAQ

Q: Which processor has the higher single-core performance?

A: The Intel Core i3-1115G4E. It leads in Geekbench single-core with 1702 versus 1104, a 54.2% advantage, and also edges ahead in Cinebench R20 single-core (266 versus 264) and R23 single-core (634 versus 630).

Q: Does the i3-8100T win any benchmark?

A: Yes, it wins Geekbench multicore with 3142 versus 2972, a 5.4% margin. That is its only head-to-head victory out of eight recorded tests.

Q: How do the core counts compare?

A: The i3-8100T has 4 cores and 4 threads, while the i3-1115G4E has 2 cores and 4 threads. The i3-1115G4E uses hyper-threading to reach 4 threads despite having 2 physical cores.

Q: What are the TDP differences between the two chips?

A: The i3-1115G4E has a 15 W TDP, while the i3-8100T has a 35 W TDP. The i3-1115G4E is designed for mobile systems with lower power limits.

Q: Which processor supports ECC memory?

A: The i3-8100T supports ECC memory. The i3-1115G4E does not support ECC memory.

Q: What are the socket types for these processors?

A: The i3-1115G4E uses Intel BGA 1449, a soldered mobile socket. The i3-8100T uses Intel Socket 1151, a replaceable desktop socket.

Specification Differences

| Specification | Intel Core i3-1115G4E | Intel Core i3-8100T |

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

| Cores | 2 | 4 |

| Threads | 4 | 4 |

| Base Clock | 2.20 GHz | 3.10 GHz |

| Boost Clock | 3.90 GHz | None listed |

| TDP | 15 W | 35 W |

| Socket | Intel BGA 1449 | Intel Socket 1151 |

| Architecture | Tiger Lake | Coffee Lake |

| Process Node | 10 nm | 14 nm |

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

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

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

| Memory Support | DDR4, LPDDR4X | DDR4 |

| Memory Bandwidth | None listed | 38.4 GB/s |

| ECC Memory | No | Yes |

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

| Integrated Graphics | UHD Graphics G4 48EU | UHD Graphics 630 |

| Market Segment | Mobile | Desktop |

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

| Launch MSRP | $285 | $117 |

| Die Size | 144 mm² | 126 mm² |

| Part Number | SRK12 | SR3Y8 |