Lenovo Gen 12 ThinkPad X1 21KC0046US vs Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti

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

Winner: Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti

Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti takes 11 weighted points vs 3.3, winning on CPU Benchmark, Storage, Refresh Rate. The winner also sits in a more competitive value tier — a clear-cut call.

Lenovo Gen 12 ThinkPad X1 21KC0046US

Intel Core Ultra 7 155U · Integrated (Intel iGPU)

Under $1900
4.9 (13)
Check Prices
VS
Winner
Best Value

Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti

Intel Core Ultra 7 255HX · NVIDIA RTX 5070Ti

Under $1900
4.2 (14)
Check Prices

Use-Case Scores

CategoryGen 12 ThinkPad X1 21KC0046USLegion Pro 7i Ultra 7 / RTX 5070 Ti
Gaming3/107.8/10
Productivity5.8/106.2/10
Programming5.5/106.9/10
Engineering / 3D4.1/107.4/10
Student6/105.6/10
Travel / Portability7.2/104.8/10
AI Workloads4/107.3/10
Value for Money4.6/109.5/10

Detailed Specification Comparison

SpecGen 12 ThinkPad X1 21KC0046USLegion Pro 7i Ultra 7 / RTX 5070 Ti
CPUIntel Core Ultra 7 155UIntel Core Ultra 7 255HX
PassMark Score16,35549,235
CPU Cores2P+10E8P+12E
GPUIntegrated (Intel iGPU)NVIDIA RTX 5070Ti
G3DMark Score—23,836
RAM32 GB DDR532 GB DDR5
RAM UpgradeableNo (soldered)Yes
Storage1 TBSSD2 TBSSD
Display14″ IPS16″ OLED
Resolution1920x12002560x1600
Refresh Rate60 Hz240 Hz
Pixel Density162 PPI189 PPI
TouchscreenYesNo
Weight2.4 lbs5.65 lbs
Thickness0.59″1.05″
Amazon Rating4.9 ★ (13)4.2 ★ (14)
Value Score4.6/109.5/10

CPU Comparison

The Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti's Intel Core Ultra 7 255HX is ~201% faster in multi-threaded PassMark (49,235 vs 16,355). A generational gap you will feel in exports, compiles and heavy multitasking.

GPU & Gaming

Only the Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti has a dedicated GPU (RTX 5070Ti, 23,836 G3DMark) — it wins gaming outright.

Productivity & Battery

Office scores: 5.8/10 vs 6.2/10. Battery isn't in our dataset, but the iGPU-only Lenovo Gen 12 ThinkPad X1 21KC0046US will typically outlast the Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti unplugged.

Display

Gen 12 ThinkPad X1 21KC0046US: 14″ IPS 1920x1200 @ 60 Hz. Legion Pro 7i Ultra 7 / RTX 5070 Ti: 16″ OLED 2560x1600 @ 240 Hz. The Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti's OLED panel is the clear quality win.

RAM, Storage & Upgradeability

Gen 12 ThinkPad X1 21KC0046US: 32 GB DDR5 (soldered) + 1 TBSSD. Legion Pro 7i Ultra 7 / RTX 5070 Ti: 32 GB DDR5 (upgradeable) + 2 TBSSD. The Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti's socketed RAM is a longevity advantage.

Build & Portability

2.4 lbs / 0.59″ vs 5.65 lbs / 1.05″. The Lenovo Gen 12 ThinkPad X1 21KC0046US is 3.3 lbs lighter — significant for daily carry. Travel scores: 7.2 vs 4.8.

Value

Value scores land 4.6/10 vs 9.5/10. The Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti extracts more performance per dollar.

Final Verdict

Buy the Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti — it wins the weighted spec battle and costs less. Choose the Lenovo Gen 12 ThinkPad X1 21KC0046US only if portability matter more to you.

Check PricesCheck Prices

Also Consider

More on the Lenovo Gen 12 ThinkPad X1 21KC0046US

More on the Lenovo Legion Pro 7i Ultra 7 / RTX 5070 Ti