The Setup
We tested the MSI Raider 18 HX AI (RTX 5080 at 150W TGP, Core Ultra 9 285HX, 64GB DDR5) against the ASUS ROG Strix G18 (RX 7900M at 150W TGP, Ryzen 9 9955HX3D, 32GB DDR5). Both tested at 1440p — the relevant resolution for this GPU tier. All results are sustained 30-minute averages to expose throttling, both running at max performance mode.
The price gap is central to this comparison: Raider 18 at $3,799 vs ROG Strix at $2,889 — an $800 difference.
Round 1: Raw Gaming Performance
The RTX 5080 leads across all 11 games, with an average 24% margin. The gap ranges from 8% in Forza Horizon 5 (where AMD's driver optimisation is excellent) to 41% in Black Myth: Wukong. Neither machine throttled during testing.
| Game (1440p Max) | RTX 5080 | RX 7900M | Lead |
|---|---|---|---|
| Cyberpunk 2077 Ultra | 131 | 95 | +38% |
| Black Myth: Wukong | 62 | 44 | +41% |
| Alan Wake 2 | 87 | 64 | +36% |
| Spider-Man 2 | 94 | 82 | +15% |
| Dragon's Dogma 2 | 97 | 75 | +29% |
| Forza Horizon 5 Extreme | 186 | 172 | +8% |
| Baldur's Gate 3 | 82 | 76 | +8% |
| Elden Ring | 128 | 112 | +14% |
Round 2: DLSS 4 vs FSR 3
DLSS 4 Multi Frame Generation is transformative — generating up to three additional frames per rendered frame. In Cyberpunk 2077 with path tracing, the RTX 5080 goes from 45 native fps to 160+ perceived fps at 1440p. Image quality at Quality mode is near-indistinguishable from native.
FSR 3 Frame Generation works on virtually any GPU and in a broader range of games since it doesn't require developer-specific integration. Image quality trails DLSS 4 with more aliasing on fine detail and ghosting on fast-moving objects. Its universal compatibility is its key advantage.
Round 3: Ray Tracing
RTX 5080 + DLSS 4: 62 fps at 1440p path tracing. RX 7900M + FSR 3: 31 fps. AMD RDNA 3 lacks the hardware RT acceleration equivalent to Nvidia's dedicated RT cores. If ray tracing matters to you, this is the most decisive data point in the entire comparison.
Round 4: Battery Life
The ROG Strix G18 outlasts the Raider 18 by 22% gaming — 4.1 hours vs 3.4 hours. The full AMD platform (Ryzen + RX 7900M) reduces overhead and improves efficiency at lighter loads significantly. For general productivity, the gap widens further: 8+ hours vs ~6 hours for the Raider 18.
Round 5: Value — Performance Per Dollar
The ROG Strix G18 at $2,889 delivers 95 avg fps. The Raider 18 at $3,799 delivers 118 fps — 24% more performance for 32% more cost. On raw frames-per-dollar, AMD wins. For raster-only gaming the RX 7900M is the more efficient spend.
Final Verdict: Who Should Buy Each?
- →You play ray-tracing-heavy games (Cyberpunk PT, Alan Wake 2)
- →DLSS 4 MFG is a priority
- →You use CUDA apps (Premiere, DaVinci, Stable Diffusion)
- →Budget allows $3,000+
- →You want the best value at $2,000–2,500
- →Battery life and efficiency matter
- →You mainly play raster games (Forza, BG3, RPGs)
- →You prefer the open AMD ecosystem
The RTX 5080 is objectively the faster GPU — better raster, dominant ray tracing, transformative DLSS 4. But at $800 less, the RX 7900M delivers 76% of the performance. For most 1440p gamers without a ray tracing focus, the RX 7900M is the smarter financial decision.