Alienware M18 R2 RTX 5080 vs Lenovo Legion Pro 7i (RTX 5090/64GB)

Benchmark-weighted head-to-head · data updated 2026-09-10

Winner: Lenovo Legion Pro 7i (RTX 5090/64GB)

Lenovo Legion Pro 7i (RTX 5090/64GB) takes 13.3 weighted points vs 4.5, winning on GPU Benchmark, RAM, Pixel Density. Read our comprehensive Lenovo Legion Pro 7i (RTX 5090/64GB) review or see the full Alienware M18 R2 RTX 5080 review. The winner also sits in a more competitive value tier — a clear-cut call.

Alienware M18 R2 RTX 5080

Intel Core Ultra 9 275HX · NVIDIA RTX 5080

Under $5000
4.1 (16)
Check Prices
VS
Winner
Editor's ChoiceBest ValueTop Gaming Pick

Lenovo Legion Pro 7i (RTX 5090/64GB)

Intel Core Ultra 9 275HX · NVIDIA RTX 5090

Under $5000
4.8 (6)
Check Prices

Use-Case Scores

CategoryM18 R2 RTX 5080Legion Pro 7i (RTX 5090/64GB)
Gaming8.8/109.2/10
Productivity5.6/107.3/10
Programming6.6/108.3/10
Engineering / 3D7.8/109.1/10
Student4.2/106.1/10
Travel / Portability3/105.3/10
AI Workloads7.8/109.3/10
Value for Money7.9/109.7/10

Detailed Specification Comparison

SpecM18 R2 RTX 5080Legion Pro 7i (RTX 5090/64GB)
CPUIntel Core Ultra 9 275HXIntel Core Ultra 9 275HX
PassMark Score56,48855,695
CPU Cores8P+16E8P+16E
GPUNVIDIA RTX 5080NVIDIA RTX 5090
G3DMark Score27,93529,723
RAM32 GB DDR564 GB DDR5
RAM UpgradeableYesYes
Storage2 TBSSD2 TBSSD
Display18″ IPS16″ OLED
Resolution2560x16002560x1600
Refresh Rate300 Hz240 Hz
Pixel Density168 PPI189 PPI
TouchscreenNoNo
Weight9.56 lbs5.98 lbs
Thickness1.2″1.05″
Amazon Rating4.1 ★ (16)4.8 ★ (6)
Value Score7.9/109.7/10

CPU Comparison

The Alienware M18 R2 RTX 5080's Intel Core Ultra 9 275HX is ~1% faster in multi-threaded PassMark (56,488 vs 55,695). In practice the difference is marginal. Read more in our in-depth M18 R2 RTX 5080 benchmark breakdown and Legion Pro 7i (RTX 5090/64GB) performance review.

GPU & Gaming

The RTX 5090 in the Lenovo Legion Pro 7i (RTX 5090/64GB) is ~6% faster (29,723 vs 27,935 G3DMark) — a modest but real FPS edge. best gaming laptops guide.

Productivity & Battery

Office scores: 5.6/10 vs 7.3/10. Battery isn't in our dataset, but both share a similar power class, so expect comparable endurance.

Display

M18 R2 RTX 5080: 18″ IPS 2560x1600 @ 300 Hz. Legion Pro 7i (RTX 5090/64GB): 16″ OLED 2560x1600 @ 240 Hz. The Lenovo Legion Pro 7i (RTX 5090/64GB)'s OLED panel is the clear quality win. Explore more high-contrast options in our best OLED laptops guide.

RAM, Storage & Upgradeability

M18 R2 RTX 5080: 32 GB DDR5 (upgradeable) + 2 TBSSD. Legion Pro 7i (RTX 5090/64GB): 64 GB DDR5 (upgradeable) + 2 TBSSD.

Build & Portability

9.56 lbs / 1.2″ vs 5.98 lbs / 1.05″. The Lenovo Legion Pro 7i (RTX 5090/64GB) is 3.6 lbs lighter — significant for daily carry. Travel scores: 3 vs 5.3.

Value

Value scores land 7.9/10 vs 9.7/10. The Lenovo Legion Pro 7i (RTX 5090/64GB) extracts more performance per dollar.

Final Verdict

Buy the Lenovo Legion Pro 7i (RTX 5090/64GB) — it wins the weighted spec battle and costs less. You can read the detailed Lenovo Legion Pro 7i (RTX 5090/64GB) review or compare alternative models in our laptop comparison tool.

Check PricesCheck Prices

Also Consider

More on the Alienware M18 R2 RTX 5080

More on the Lenovo Legion Pro 7i (RTX 5090/64GB)