Core i5-1155G7 vs Core i7-7740X
Core i5-1155G7
Core i7-7740X
Performance Spectrum - CPU
About PassMark
PassMark CPU Mark evaluates processor speed through complex mathematical computations. It provides a reliable metric to compare multi-core performance, where higher scores indicate faster processing for multitasking, gaming, and heavy workloads.
Value Upgrade Path
This is the official ChipVERSUS Value Rating, comparing raw performance (PassMark) per dollar. Components placed above yours deliver better value for money. The Core i5-1155G7 is positioned at rank 677 and the Core i7-7740X is on rank 614, so the Core i7-7740X offers better cost-efficiency for playing games.
Avg price is the current average price collected from markets across the web.
Performance Per Dollar Core i5-1155G7
Performance Per Dollar Core i7-7740X
Performance Comparison
About PassMark🏆 Chipversus Verdict
🚀 Performance Leadership
| Insight | Core i5-1155G7 | Core i7-7740X |
|---|---|---|
| Gaming | Balanced gaming performance | Balanced gaming performance |
| Workstation | ✅ Better multi-core power | ❌ Weaker in multi-core tasks |
| Price | ✅ More affordable ($0) | ⚠️ Higher cost ($150) |
| Longevity | ✨ Modern (Tiger Lake-UP3 (2020−2021) / 10 nm SuperFin) | ✨ Modern (Kaby Lake-X (2017) / 14 nm) |
💎 Value Proposition
| Insight | Core i5-1155G7 | Core i7-7740X |
|---|---|---|
| Cost Efficiency | ❌ Lower cost efficiency | ❌ Lower cost efficiency |
| Upfront Cost | ✅ More affordable ($0) | ⚠️ Higher cost ($150) |
Performance Check
To accurately isolate CPU performance, all benchmarks below use an NVIDIA RTX 4090 as the reference GPU. This eliminates GPU-side bottlenecks and highlights pure processing throughput differences between the CPUs.
Note: Real-world results may vary based on your actual GPU. CPU performance impact is more visible in processing-intensive titles and high-refresh-rate gaming scenarios.
Technical Specifications
Side-by-side comparison of Core i5-1155G7 and Core i7-7740X
Core i5-1155G7
The Core i5-1155G7 is manufactured by Intel. It was released in 31 May 2021 (4 years ago). It is based on the Tiger Lake-UP3 (2020−2021) architecture. It features 4 cores and 8 threads. Base frequency is 2.5 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 1.25 MB (per core). Built on 10 nm SuperFin process technology. Socket: FCBGA1449. Thermal design power (TDP): 28 Watt. Memory support: DDR4. Passmark benchmark score: 9,686 points. Launch price was $309.
Core i7-7740X
The Core i7-7740X is manufactured by Intel. It was released in 26 June 2017 (8 years ago). It is based on the Kaby Lake-X (2017) architecture. It features 4 cores and 8 threads. Base frequency is 4.3 GHz, with boost up to 4.5 GHz. L3 cache: 8 MB (total). L2 cache: 256K (per core). Built on 14 nm process technology. Socket: LGA2066. Thermal design power (TDP): 112 Watt. Memory support: DDR4. Passmark benchmark score: 9,678 points. Launch price was $339.
Processing Power
Both the Core i5-1155G7 and Core i7-7740X share an identical 4-core/8-thread configuration. Boost clocks reach 4.5 GHz on the Core i5-1155G7 versus 4.5 GHz on the Core i7-7740X — identical boost frequencies (base: 2.5 GHz vs 4.3 GHz). The Core i5-1155G7 uses the Tiger Lake-UP3 (2020−2021) architecture (10 nm SuperFin), while the Core i7-7740X uses Kaby Lake-X (2017) (14 nm). In PassMark, the Core i5-1155G7 scores 9,686 against the Core i7-7740X's 9,678 — a 0.1% lead for the Core i5-1155G7. Both processors carry 8 MB (total) of L3 cache.
| Feature | Core i5-1155G7 | Core i7-7740X |
|---|---|---|
| Cores / Threads | 4 / 8 | 4 / 8 |
| Boost Clock | 4.5 GHz | 4.5 GHz |
| Base Clock | 2.5 GHz | 4.3 GHz+72% |
| L3 Cache | 8 MB (total) | 8 MB (total) |
| L2 Cache | 1.25 MB (per core)+400% | 256K (per core) |
| Process | 10 nm SuperFin-29% | 14 nm |
| Architecture | Tiger Lake-UP3 (2020−2021) | Kaby Lake-X (2017) |
| PassMark | 9,686 | 9,678 |
Memory & Platform
The Core i5-1155G7 uses the FCBGA1449 socket (PCIe 4.0), while the Core i7-7740X uses LGA2066 (PCIe 3.0) — making them incompatible on the same motherboard.
| Feature | Core i5-1155G7 | Core i7-7740X |
|---|---|---|
| Socket | FCBGA1449 | LGA2066 |
| PCIe Generation | PCIe 4.0+33% | PCIe 3.0 |
| Max RAM Speed | — | DDR4-2666 |
| Max RAM Capacity | — | 64 GB |
| RAM Channels | — | 2 |
| ECC Support | — | ❌ |
| PCIe Lanes | — | 16 |
Advanced Features
Virtualization: not specified (Core i5-1155G7) / VT-x, VT-d (Core i7-7740X). Primary use case: Core i7-7740X targets Desktop.
| Feature | Core i5-1155G7 | Core i7-7740X |
|---|---|---|
| Integrated GPU | — | No |
| Unlocked | — | Yes |
| AVX-512 | — | No |
| Virtualization | — | VT-x, VT-d |
| Target Use | — | Desktop |
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