Asus ROG Strix G15 Advantage Edition vs Lenovo IdeaPad Flex 5
Head-to-head specifications
| Metric | Asus ROG Strix G15 Advantage Edition | Lenovo IdeaPad Flex 5 | Difference |
|---|---|---|---|
| Geekbench 6 multi-core | 8,600 | 5,000 | +72.0% |
| Processor | AMD Ryzen 9 5900HX | AMD Ryzen 5 4500U | — |
| Graphics | AMD Radeon RX 6800M | AMD Radeon Graphics | — |
| Display | 15.6" 1920x1080 | 14.0" 1920x1080 | — |
| Battery life (h) | 8 | 10 | -20.0% |
| Weight (kg) | 2.50 | 1.50 | +66.7% |
| RAM / storage (base) | 16GB / 512GB | 8GB / 256GB | — |
| Max configuration | 16GB / 512GB | 16GB / 512GB | — |
| Operating system | Windows 10 Home | Windows 10 Home | — |
| Price (USD) | $1,649 | $600–$800 | +174.8% |
- Asus ROG Strix G15 Advantage Edition is about 72% faster in Geekbench 6 multi-core. Lenovo IdeaPad Flex 5 lasts longer on battery (10h vs 8h).
- Lenovo IdeaPad Flex 5 is the more portable at 1.50 kg.
Verdict: ROG Strix G15 Advantage Edition or IdeaPad Flex 5?
Asus ROG Strix G15 Advantage Edition advantages
- Multi-core performance (+42%)
- Base memory (+50%)
- Screen size (+10%)
Lenovo IdeaPad Flex 5 advantages
- Battery life (+20%)
- Portability (+40%)
- Affordability (+64%)
Which should you choose?
- Choose the Asus ROG Strix G15 Advantage Edition if you need maximum performance for demanding work or gaming.
- Choose the Lenovo IdeaPad Flex 5 if long unplugged battery life is essential.
- Choose the Asus ROG Strix G15 Advantage Edition if you run heavy multitasking, VMs or large projects.
Value for money
Lenovo IdeaPad Flex 5 delivers more performance per dollar, making it the better value of the two at their listed prices.
Asus ROG Strix G15 Advantage Edition vs Lenovo IdeaPad Flex 5: which should you choose?
Asus ROG Strix G15 Advantage Edition — Asus gaming laptop (2021) with the AMD Ryzen 9 5900HX and AMD Radeon RX 6800M, 16GB RAM, a 15.6-inch 1920x1080 display, 2.5 kg and about 8 h battery; from $1,649.
Lenovo IdeaPad Flex 5 — Lenovo mainstream laptop (2020) with the AMD Ryzen 5 4500U and AMD Radeon Graphics, 8GB RAM, a 14-inch 1920x1080 display, 1.5 kg and about 10 h battery; from $599.99.
Asus ROG Strix G15 Advantage Edition vs Lenovo IdeaPad Flex 5: Asus ROG Strix G15 Advantage Edition is the faster laptop. Asus ROG Strix G15 Advantage Edition is about 72% faster in Geekbench 6 multi-core. Lenovo IdeaPad Flex 5 lasts longer on battery (10h vs 8h). Lenovo IdeaPad Flex 5 is the more portable at 1.50 kg.
Performance
The Asus ROG Strix G15 Advantage Edition is the faster machine in Geekbench 6 multi-core (8,600 vs 5,000), pairing the AMD Ryzen 9 5900HX with AMD Radeon RX 6800M. That gap matters most for video editing, compiling, 3D and gaming; for browsing and office work both feel quick. Note these serve different roles — a gaming versus a mainstream machine — so raw speed is only part of the story.
Portability and battery
The Lenovo IdeaPad Flex 5 is easier to carry at 1.50 kg (vs 2.50 kg), and the Lenovo IdeaPad Flex 5 lasts longer unplugged (about 10 h vs 8 h). For commuters and travellers these often matter more day-to-day than peak performance.
Configuration and value
Base configurations are 16 GB / 512 GB and 8 GB / 256 GB, with higher-spec variants available. RAM, storage and display upgrades change both price and experience — compare like-for-like configurations and check current street pricing before buying.
The verdict
Both are credible choices in the laptop comparison space; the specification table above lays out every metric so you can weigh the trade-offs that matter to you. Pick the one whose strengths line up with how you will actually use it.
Frequently asked questions
Is the Asus ROG Strix G15 Advantage Edition better than the Lenovo IdeaPad Flex 5?
These two are closely matched — the right pick comes down to which specific strengths you value and the price you actually pay. Asus ROG Strix G15 Advantage Edition is about 72% faster in Geekbench 6 multi-core. Lenovo IdeaPad Flex 5 lasts longer on battery (10h vs 8h).
What is the main difference between the Asus ROG Strix G15 Advantage Edition and the Lenovo IdeaPad Flex 5?
Asus ROG Strix G15 Advantage Edition is about 72% faster in Geekbench 6 multi-core. Lenovo IdeaPad Flex 5 lasts longer on battery (10h vs 8h). Lenovo IdeaPad Flex 5 is the more portable at 1.50 kg.
Which is better value?
Lenovo IdeaPad Flex 5 delivers more performance per dollar, making it the better value of the two at their listed prices.
Which should I choose?
Choose the Asus ROG Strix G15 Advantage Edition if you need maximum performance for demanding work or gaming. Choose the Lenovo IdeaPad Flex 5 if long unplugged battery life is essential.
Methodology
Laptops are compared on Geekbench 6 multi-core scores, processor and graphics hardware, display size and resolution, rated battery life, weight, RAM and storage across launch configurations, and list pricing (USD). Where a model spans several generations, the newest generation is shown. Battery figures are manufacturer or reviewer ratings under mixed use — sustained performance also depends on cooling, which benchmarks only partly capture.