ASUS Vivobook X1404VA-I38128 vs Lenovo IdeaPad Flex 5i

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

Winner: ASUS Vivobook X1404VA-I38128

ASUS Vivobook X1404VA-I38128 takes 7 weighted points vs 3.3, winning on CPU Benchmark, Price, Value Score. The winner also sits in a more competitive value tier — a clear-cut call.

Winner

ASUS Vivobook X1404VA-I38128

Intel Core i3-1315U · Integrated (Intel iGPU)

Under $400
3.9 (6)
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VS

Lenovo IdeaPad Flex 5i

Intel Core i3-1215U · Integrated (Intel iGPU)

Under $600
4.2 (73)
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Use-Case Scores

CategoryVivobook X1404VA-I38128IdeaPad Flex 5i
Gaming2.1/102.1/10
Productivity2.6/104.1/10
Programming2.5/103.1/10
Engineering / 3D2.6/102.6/10
Student3.7/105.2/10
Travel / Portability2.8/105.6/10
AI Workloads2.3/102.3/10
Value for Money7/105.8/10

Detailed Specification Comparison

SpecVivobook X1404VA-I38128IdeaPad Flex 5i
CPUIntel Core i3-1315UIntel Core i3-1215U
PassMark Score11,51510,774
CPU Cores2P+4E2P+4E
GPUIntegrated (Intel iGPU)Integrated (Intel iGPU)
G3DMark Score——
RAM8 GB DDR48 GB DDR4
RAM UpgradeableNo (soldered)No (soldered)
Storage128 GBSSD256 GBSSD
Display14″ IPS14″ IPS
Resolution1920x10801920x1080
Refresh Rate60 Hz60 Hz
Pixel Density157 PPI157 PPI
TouchscreenNoYes
Weightnull lbs3.52 lbs
Thickness0.7″0.68″
Amazon Rating3.9 ★ (6)4.2 ★ (73)
Value Score7/105.8/10

CPU Comparison

The ASUS Vivobook X1404VA-I38128's Intel Core i3-1315U is ~7% faster in multi-threaded PassMark (11,515 vs 10,774). In practice the difference is marginal.

GPU & Gaming

Neither carries a dedicated GPU — both fine for esports at low settings, neither for modern AAA gaming.

Productivity & Battery

Office scores: 2.6/10 vs 4.1/10. Battery isn't in our dataset, but both share a similar power class, so expect comparable endurance.

Display

Vivobook X1404VA-I38128: 14″ IPS 1920x1080 @ 60 Hz. IdeaPad Flex 5i: 14″ IPS 1920x1080 @ 60 Hz. Panel quality is effectively even.

RAM, Storage & Upgradeability

Vivobook X1404VA-I38128: 8 GB DDR4 (soldered) + 128 GBSSD. IdeaPad Flex 5i: 8 GB DDR4 (soldered) + 256 GBSSD.

Build & Portability

null lbs / 0.7″ vs 3.52 lbs / 0.68″. The Lenovo IdeaPad Flex 5i is 3.5 lbs lighter — significant for daily carry. Travel scores: 2.8 vs 5.6.

Value

Value scores land 7/10 vs 5.8/10. The ASUS Vivobook X1404VA-I38128 extracts more performance per dollar.

Final Verdict

Buy the ASUS Vivobook X1404VA-I38128 — it wins the weighted spec battle and costs less. Choose the Lenovo IdeaPad Flex 5i only if portability matter more to you.

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