Lenovo B51-30 review
Lenovo B51-30 — from 2015, 2.5 kg, performance 6.
Technical specifications
| Type | Laptop |
| Release year | 2015 |
| Screen | 15.6" · 1366x768 |
| Processor | Intel Pentium N3700 |
| Graphics | GeForce 920M 1GB |
| Weight | 2.5 kg |
Performance scores
A token graphics card starved by a slow engine
The Lenovo B51-30 from 2015 asks $137 — deep in ultra-budget land against a $248 class median. Its configuration pairs a Pentium N3700 with a GeForce 920M carrying a token 1GB of its own memory. The measurements leave no ambiguity about the balance: CPU at 6.99 against a class median of 58.99, reliability at 7 against 54, and a performance index of 5.77 — all deep in the budget basement.
Why the card does not help
A 920M in isolation is a modest but real entry card; in this machine it is vestigial. The N3700's four weak cores cannot feed it, no game gates pass, and the 1GB of local memory retires it from anything modern. The card is best read as a checkbox feature of its era, not a capability — the ok-flags have the final word and they say no.
What remains
Strip away the graphics ambition and what is left is a basic single-purpose machine: browsing, documents, video playback, done without hurry. The reliability reading of 7 says the hardware itself is in its last act — this tier of 2015 silicon is bought for remaining runtime, not for years of service.
Price trajectory
The curve runs from a $900 anchor to $137 at 7.57% per year, with a two-year projection near $117. At this altitude the remaining depreciation is pocket change; the purchase decision is about utility per dollar today, and $137 buys very little utility.
Against the alternatives
Only two neighbors register nearby: HP's Pavilion g6-1195sg at $125 and Dell's Inspiron 15-3552 at $127, both marginally cheaper. The crowd at this altitude is thin, which says the market for this capability tier is price-first and brand-blind.
Bottom line
A budget-friendly pick in price alone. The honest verdict: the discrete-card badge on the spec sheet promises more than the machine delivers, and the CPU floor caps everything. Buy only if the job is genuinely minimal and the budget genuinely fixed.
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⭐ What stands out
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CPU performance is lower than typical general laptop class (+88.2%) (basic tier).
budget segment of category -
reliability is lower than typical general laptop class (+87%) (low tier).
budget segment of category -
overall performance is lower than typical general laptop class (+86.6%) (low tier).
budget segment of category
🔁 Alternatives
Compromise axis: mobility ↔ overall performance
⚙️ Configuration analysis
Top configuration is built for office apps, web browsing, and basic daily tasks.
🤔 How to choose
Universal advice for any use case.
- Reliability vs price: reliability (median 54) ↔ price (median 247.9).
- Weight vs CPU: mobility (median 50) ↔ overall performance (median 43.1).
- Upgradeability vs battery: upgradability (median 50) ↔ battery life (median 2.3).
B51-30: verdict
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