HP - Z27k G3 4K USB-C vs Lenovo - ThinkVision P27u-20
Between the Z27k G3 4K USB-C and ThinkVision P27u-20, the Z27k G3 4K USB-C comes out ahead in response time (gtg), while the ThinkVision P27u-20 wins on dci-p3 coverage. Overall, the Z27k G3 4K USB-C scores 59 and the ThinkVision P27u-20 scores 58.3 on our Mars Score.
Which should you buy?
These two are nearly even on the Mars Score (59 vs 58.3). The decision isn't about overall quality — both clear the bar — it's about which specific trade-offs fit your use.
Pick the Z27k G3 4K USB-C if you care most about response time (gtg). The biggest gaps in its favor are response time (gtg).
Pick the ThinkVision P27u-20 if you care most about dci-p3 coverage. Its strongest claims are dci-p3 coverage.
Both ship with comparable refresh rate, peak brightness, screen size, so those specs don't separate the two — focus on the differences below.
Bottom line: there is no wrong answer here — match the spec advantages to how you actually use the product. The Mars Score parity tells you both are well-rounded; the differences are about trade-offs, not quality.
Why HP - Z27k G3 4K USB-C wins
- ▲Response time (GtG) — 16.67% less. 5 ms vs 6 ms.
Why Lenovo - ThinkVision P27u-20 wins
- ▲DCI-P3 coverage — 1.02% more. 99 % vs 98 %.
Spec comparison
Panel
| Spec | HP - Z27k G3 4K USB-C | Lenovo - ThinkVision P27u-20 |
|---|---|---|
| Screen sizeⓘ | 27 " | 27 " |
| Panel typeⓘ | IPS | IPS |
| Resolutionⓘ | 4K | 4K |
| Aspect ratioⓘ | 16:9 | 16:9 |
| Curvedⓘ | false | false |
Performance
| Spec | HP - Z27k G3 4K USB-C | Lenovo - ThinkVision P27u-20 |
|---|---|---|
| Refresh rateⓘ | 60 Hz | 60 Hz |
| Response time (GtG)ⓘ | 5 mslead | 6 ms |
| Peak brightnessⓘ | 400 nits | 400 nits |
| DCI-P3 coverageⓘ | 98 % | 99 %lead |
| HDRⓘ | true | true |
| G-Syncⓘ | false | false |
| FreeSyncⓘ | false | false |
Connectivity
| Spec | HP - Z27k G3 4K USB-C | Lenovo - ThinkVision P27u-20 |
|---|---|---|
| HDMI ports | 1 | 1 |
| DisplayPort ports | 1 | 1 |
| USB-C input | true | true |
| USB-C Power Deliveryⓘ | 100 W | 100 W |
| KVM | true | true |
Frequently asked
Which has higher refresh rate, Z27k G3 4K USB-C or ThinkVision P27u-20?+
ThinkVision P27u-20 refreshes at 60Hz vs 60Hz.
Which has faster response time, Z27k G3 4K USB-C or ThinkVision P27u-20?+
Z27k G3 4K USB-C responds in 5ms vs 6ms.
Does Z27k G3 4K USB-C or ThinkVision P27u-20 have USB-C with power delivery?+
Both offer USB-C PD — 100W on Z27k G3 4K USB-C, 100W on ThinkVision P27u-20.
Spec-level deep dives
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