Intel Core i5-1155G7 vs Intel Core i5-8500B Comparison

Head-to-Head Benchmarks

The benchmark data strongly favors the Intel Core i5-1155G7, which wins 7 out of 8 recorded comparisons. The most consistent victories come in Cinebench tests, where the i5-1155G7 leads by margins between 8.5% and 9.2%. In Cinebench R15 multicore, the i5-1155G7 scores 822 against 753 for the i5-8500B, a 9.2% advantage. The single-core R15 test shows a similar gap, with 115 points versus 106, an 8.5% lead.

The pattern continues across newer Cinebench versions. In R20 multicore, the i5-1155G7 records 3425 versus 3141, a 9% edge. The R20 single-core result is 483 against 443, again a 9% lead. Cinebench R23 multicore shows 8155 against 7480, with the same 9% delta, while R23 single-core lands at 1151 versus 1056, also a 9% difference. These results indicate that the i5-1155G7 maintains a stable performance advantage across rendering workloads of varying intensity.

Geekbench tells a more divided story. In single-core, the i5-1155G7 continues its winning streak with 1574 points against 1407, an 11.9% margin, the largest single-core win in the dataset. However, in Geekbench multicore, the i5-8500B takes its only victory, scoring 4998 versus 4246. That is a 15% reversal in favor of the older chip. This outlier is notable because it contradicts the Cinebench multicore results, where the i5-1155G7 consistently leads. The Geekbench multicore test appears to reward the i5-8500B's higher physical core count, while Cinebench favors the i5-1155G7's higher clock speeds and newer architecture.

Average benchmark scores place the i5-1155G7 slightly ahead overall. The i5-1155G7 has an average score of 2496 against 2423 for the i5-8500B, a difference of roughly 3%. Percentile rankings are close as well, with the i5-1155G7 at the 49th percentile of all CPUs and the i5-8500B at the 48th. For context, the i5-1155G7's nearest rivals include the Intel Core i5-9500T at 2493 (0.1% behind) and the Intel Xeon E5-2630 v3 at 2507 (0.4% ahead). The i5-8500B sits near the AMD Ryzen 5 4680U at 2424 (0.1% ahead) and the Intel Core i7-9850HE at 2421 (0.1% behind).

Architecture Differences

The two processors come from different architectural eras. The i5-1155G7 uses the Tiger Lake architecture on a 10 nm process node with a die size of 144 mm². The i5-8500B uses the Coffee Lake architecture on a 14 nm node with a slightly larger die at 154 mm². The newer process allows the i5-1155G7 to achieve higher clock speeds despite a much lower thermal envelope.

Core configurations differ significantly. The i5-1155G7 has 4 cores and 8 threads, while the i5-8500B has 6 cores and 6 threads. The i5-1155G7 relies on Hyper-Threading to reach 8 threads, whereas the i5-8500B has no Hyper-Threading, so its thread count equals its core count. This explains the Geekbench multicore result: the i5-8500B's two extra physical cores provide a raw throughput advantage that the i5-1155G7 cannot fully offset.

Cache hierarchies are structured differently. The i5-1155G7 has 80 KB of L1 cache per core and 1.25 MB of L2 per core, with 8 MB of shared L3. The i5-8500B has 64 KB of L1 per core and 256 KB of L2 per core, with 9 MB of shared L3. The i5-1155G7's larger per-core L2 cache is a notable architectural improvement, while the i5-8500B has slightly more total L3.

Memory support also diverges. The i5-1155G7 supports both DDR4 and LPDDR4X memory, while the i5-8500B only supports DDR4. Both use dual-channel memory buses. The i5-8500B has a recorded memory bandwidth of 42.7 GB/s; the i5-1155G7 does not have a bandwidth figure in the database. PCIe connectivity differs as well: the i5-1155G7 provides Gen 4 with 16 lanes, while the i5-8500B provides Gen 3 with 16 lanes.

Integrated graphics are another differentiator. The i5-1155G7 includes Iris Xe-LP Graphics G7 with 80 execution units, while the i5-8500B has UHD Graphics 630. The Tiger Lake iGPU is a significantly newer design and generally more capable.

Where Each One Wins

The i5-1155G7 is the clear winner for single-threaded performance. It beats the i5-8500B in every single-core benchmark in the dataset, with margins ranging from 8.5% to 11.9%. This makes it the better choice for workloads that depend on per-core speed, such as everyday desktop responsiveness, lightweight productivity, and applications that are not heavily multithreaded. The i5-1155G7 also wins in Cinebench multicore tests, which suggests that its 8 threads, combined with higher clocks, handle rendering tasks effectively despite having fewer physical cores.

The i5-8500B takes the Geekbench multicore test by a 15% margin, indicating that its 6 physical cores provide an advantage in workloads that scale with core count rather than clock speed or architectural efficiency. This could matter for multitasking scenarios, VM hosting, or compilation tasks that utilize all available cores without being limited by per-thread performance. However, the i5-8500B's single-core results are consistently lower, so it loses ground in any latency-sensitive or lightly threaded application.

The i5-1155G7's lower TDP of 28 watts versus 65 watts for the i5-8500B also points to efficiency advantages, though the database does not include direct power consumption measurements. The i5-1155G7 is a mobile processor, while the i5-8500B is a desktop part, and this market segmentation aligns with the performance profile: the i5-1155G7 delivers competitive or better performance in a more power-constrained package.

FAQ

Q: Which processor has a higher single-core score in Geekbench?

A: The Intel Core i5-1155G7 scores 1574 in Geekbench single-core, while the Intel Core i5-8500B scores 1407. This gives the i5-1155G7 an 11.9% advantage.

Q: How do the two compare in Cinebench R23 multicore?

A: The Intel Core i5-1155G7 scores 8155, and the Intel Core i5-8500B scores 7480. The i5-1155G7 leads by 9%.

Q: Does the i5-8500B win any benchmark in the dataset?

A: Yes, the i5-8500B wins Geekbench multicore with a score of 4998 against 4246 for the i5-1155G7, a 15% lead.

Q: What are the core and thread counts for each processor?

A: The i5-1155G7 has 4 cores and 8 threads. The i5-8500B has 6 cores and 6 threads.

Q: Which processor has a higher base clock?

A: The i5-8500B has a base clock of 3.00 GHz, while the i5-1155G7 has a base clock of 2.50 GHz. However, the i5-1155G7 has a higher boost clock at 4.50 GHz versus 4.10 GHz.

Q: What is the process node difference?

A: The i5-1155G7 is manufactured on a 10 nm process, while the i5-8500B uses a 14 nm process.

Specification Differences

| Specification | Intel Core i5-1155G7 | Intel Core i5-8500B |

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

| Cores | 4 | 6 |

| Threads | 8 | 6 |

| Base Clock | 2.50 GHz | 3.00 GHz |

| Boost Clock | 4.50 GHz | 4.10 GHz |

| TDP | 28 W | 65 W |

| Socket | Intel BGA 1449 | Intel BGA 1440 |

| Architecture | Tiger Lake | Coffee Lake |

| Process Node | 10 nm | 14 nm |

| Die Size | 144 mm² | 154 mm² |

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

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

| L3 Cache (shared) | 8 MB | 9 MB |

| Memory Support | DDR4, LPDDR4X | DDR4 |

| Memory Bandwidth | Not recorded | 42.7 GB/s |

| PCIe | Gen 4, 16 Lanes | Gen 3, 16 Lanes |

| Integrated Graphics | Iris Xe-LP Graphics G7 80EU | UHD Graphics 630 |

| Market Segment | Mobile | Desktop |

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

| Release Date | 2021-05-30 | 2018-04-02 |

| Launch MSRP | $309 | $192 |

The Verdict

The data points to the Intel Core i5-1155G7 as the stronger processor overall. It wins 7 of 8 head-to-head benchmarks, including every Cinebench test and all single-core tests. Its average benchmark score of 2496 exceeds the i5-8500B's 2423, and its 49th percentile ranking sits just above the i5-8500B's 48th. For users prioritizing single-threaded performance, modern connectivity, or efficiency in a mobile form factor, the i5-1155G7 is the obvious choice.

The i5-8500B has one clear strength: Geekbench multicore. Its 4998 score against 4246 represents a 15% advantage, likely due to its two additional physical cores. For workloads that heavily exploit multi-core scaling and do not benefit from higher per-core clocks, the i5-8500B may still be relevant. Its higher base clock of 3.00 GHz also provides a baseline advantage in scenarios where boost clocks are not sustained.

However, the i5-8500B is an end-of-life product with a 65 W TDP and older 14 nm process. The i5-1155G7 is active, more power-efficient, and delivers higher performance in most recorded tests. The verdict is straightforward: the i5-1155G7 is the better choice for general and single-threaded workloads, while the i5-8500B only makes sense if the specific Geekbench multicore pattern is critical. For most users, the newer architecture and broader benchmark dominance of the i5-1155G7 make it the recommended pick.