Lenovo Legion Y740 (15) Review: A High-End 15-Inch Gaming Laptop, Tested in VR

2021年2月24日

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Lenovo lent me a high-performance laptop from its gaming lineup, the “Legion Y740 (15)."

It carries a GeForce RTX 2080 Max-Q — a high-end GPU, even if it’s one generation behind now. How much VR can a laptop like this actually handle?

Lenovo Legion Y740 (15)

The Legion Y740 is a gaming laptop built around a 9th-gen Intel Core CPU. It’s a previous-generation model by now, but that also means the cost performance has come up — arguably making it a good target to watch.

Legion Y740(15)81UH0032JE
CPUCore i7-9750H
6 cores / 12 threads
2.4GHz (Turbo Boost 4.5GHz)
GPUGeForce RTX 2080 with Max-Q
Memory32GB
ChipsetHM370
SSD1TB
HDD1TB
Display15.6″ IPS LCD
1920×1080 (Full HD), Dolby Vision, NVIDIA G-Sync, matte finish
Interfacesmini DisplayPort x1
HDMI x1
USB3.0 (Type-A) x2
USB3.1 (Type-C, Thunderbolt 3) x1
Mic/headphone combo jack x1
Wired LAN
NetworkingWi-Fi: Wi-Fi 5 (802.11 a/b/g/n/ac)
Bluetooth: Bluetooth 5.0
Webcam720p HD camera
Battery lifeRoughly 3.0 hours
OSWindows 10 Home 64-bit (English version)
KeyboardFull-size (backlit), English layout
Dimensions
(W×D×H)
1.9L (361 x 265 x 19.95mm)
Power adapter230W
Weight~2.2kg
Price (tax included)¥221,654

*Prices and configurations reflect the time of writing and change frequently. Please check the official site for current details.

As of this writing (February 24, 2021), Lenovo’s own store carries only this one configuration.

The basic design is the same as the Legion Y540 (15).

The Test Setup: Lenovo Legion Y740 (15)

Here is the spec sheet for the unit I borrowed. This is the configuration I test throughout this article.

ModelLegion Y740(15)
81UH0032JE
Display15.6″ FHD IPS LCD (1920x1080px)
CPUIntel Core i7-9750H
6 cores / 12 threads, 2.6GHz (Turbo Boost 4.5GHz)
GPUNVIDIA GeForce RTX 2080 Max-Q
8GB GDDR6
Memory16GB
SSD1TB (NVMe/M.2)
HDD1TB
Power adapter230W
OSWindows 10 Home 64-bit (English version)

The RTX 2080 Max-Q in this Legion Y740 (15) is a high-end GPU from one generation back — performance-wise, it lands close to today’s RTX 3060 Ti.

Design and Build

The Lid

The lid has a brushed hairline finish overall. When the machine is powered on, the “O" in the LEGION logo lights up.

The lid

Sides and Interfaces

The ports are concentrated on the back, making for a genuinely convenient layout.

Rear

From left to right on the back of the Legion Y740 (15): mini-DisplayPort, HDMI, USB 3.0 (Type-A), wired LAN, USB 3.0 (Type-A), and the power port. The mini-DP and HDMI ports sit quite close together, so if you’re using an adapter cable, watch out for it colliding with the port right next to it.

Large exhaust vents run across the back and along the rear of both sides.

Right side

There’s roughly a 2cm overhang behind the display hinge. That gives the laptop excellent stability when you open the lid with one hand, but it also makes the whole chassis a bit larger.

The right side carries a single USB 3.0 (Type-A) port.

Left side

On the left side you get one USB 3.1 (Type-C, Thunderbolt 3) port and a mic/headphone combo jack.

There are no ports on the front.

The Hinge

The hinge on the Legion Y740 (15) sits at the top of the base, so tilting the screen doesn’t shift the keyboard’s position. The display also opens past 180 degrees.

Keyboard and Trackpad

As shown below, this Legion Y740 (15) uses an English-layout keyboard. There’s no number pad.

There’s also a Ctrl, Alt, and Shift key on the right-hand side. As I’ll get into below, the lighting settings let the keyboard light up in color.

The typing feel is solid — the keys travel deeper than they look like they would — and the key sound is on the quiet side.

The trackpad is modestly sized and sits where accidental touches are unlikely, but you can also toggle it on and off with Fn+F11 when you don’t need it.

Lighting

True to its gaming pedigree, the Legion Y740 (15) lets you configure lighting for both the keyboard and the fan exhaust vents.

You configure it through the dedicated “iCUE" app.

You can also choose to light up only specific keys.

The way the exhaust vents light up is configurable too.

The “LEGION" logo on the lid lights up as well.

Here’s the keyboard with its backlight turned on. Fn+Space toggles the keyboard backlight on and off.

Webcam

The Legion Y740 (15)’s webcam is an HD (720p) unit placed below the display.

Since it looks up at you from below, using it while typing takes a bit of extra thought about your angle.

Weight and Portability

The Laptop Itself

I weighed the unit.

ItemWeight
Nominal~2.3kg
Measured2.27kg

It came in at roughly 2.2kg — a fairly typical weight for a gaming laptop with this level of hardware.

Power Adapter

At 230W, the AC adapter is large and heavy — 198 x 98 x 26mm, weighing a hefty 765g.

Add the cable and you’re looking at roughly 1kg.

Laptop plus power cable together comes to just over 3kg.

I myself carry around a laptop of similar weight, and even so, this AC adapter is the kind of size I’d rather not carry if I can help it.

VR Performance Test Results

From here, I’ll go through the Legion Y740 (15)’s VR performance. I ran these tests with the fan mode switched to “Performance" via the dedicated “Lenovo Vantage" app.

Against the Recommended Oculus Spec

I compared this against a PC built to the minimum recommended Oculus GPU spec:

  • CPU: Intel Core i5-4590
  • GPU: GeForce GTX 1060 6GB
  • Memory: 8GB

The figures below are calculated from measured results.

[kimono_bar title="VR Performance (Legion Y740 (15))" color="#4363d8″ max="500″ note="Relative value, recommended spec = 100″]
3Dmark TimeSpy|189
3Dmark FireStrike|162
Cinebench CPU|208
Cinebench SingleCore|133
memory|400
[/kimono_bar]

*Legion Y740 (15) performance, with the Oculus recommended spec set to 100

3Dmark TimeSpy shows DirectX 12 rendering performance, and 3Dmark FireStrike shows VR rendering performance using richer graphics — both scored against the recommended GTX 1060 6GB desktop set to 100. Cinebench CPU shows overall CPU compute power, and Cinebench SingleCore shows single-core compute power, both against the recommended Core i5-4590 set to 100. The memory score shows RAM capacity against the recommended 8GB set to 100.

Against the Oculus recommended performance, this comes in with plenty of headroom.

Resolution Against Frame Rate

I ran VRMark across a range of resolutions. The horizontal axis is pixel count; the vertical axis is frame rate.

[kimono_cost_table title="Resolution vs. VRMark Score (Legion Y740 (15))"] 3.1|169.6|162.4|146|72 5|170|113|113|72 8.3|144|74|83|72 14.7|99|44|54.1|72 [/kimono_cost_table]

The frame rate VRMark reports is how many frames the PC can draw per second. If that falls short of the headset’s own refresh rate, the headset ends up interpolating some frames in between — so for apps with little head movement, aiming for half the headset’s refresh rate is a workable target. (The Oculus Quest line changed how it reports rendering resolution after an October 2020 update.)

HeadsetRefresh rateApprox. resolution at listed setting
Oculus Rift S80Hz4.9Mpx (“Prioritize performance") / 5.9Mpx (“Prioritize quality")
Oculus Quest72Hz9.4Mpx at rendering resolution “1.0x" (4128×2272)
Oculus Quest 272Hz / 80Hz / 90Hz8.7Mpx at rendering resolution “1.0x" (4128×2096)

If you’re using an Oculus Quest or Quest 2, the default rendering-resolution setting of “1.0" does risk frame drops in heavier apps. Turn the rendering resolution down a bit, though, and VR should feel comfortable. With a higher-resolution headset, you may start to feel this GPU’s limits.

Legion Y740 (15) VR performance: it comfortably exceeds the Oculus recommended spec. Lightweight apps should run without any stress.

VR Score and Cost Performance

MetricScore
VR Score
Higher is better performance
184
VR Cost Performance
Higher is better value
88*
*Calculated using the Legion Y740 (15)’s tax-included price of ¥221,654 as of February 23, 2021.

For a laptop, this is performance you’d call genuinely high-end.

Overall PC Performance

Here are the results from the PCMark10 benchmark app, showing how the Legion Y740 (15) performs for non-gaming use.

I compared this against a desktop PC built around the current mainstream “Intel Core i5-10400" CPU.

[kimono_bar title="PC Performance (Legion Y740 (15))" color="#4363d8″ max="150″ note="Relative value, reference spec = 100″]
Overall|110
Essentials|105
Productivity|100
Digital Content Creation|122
[/kimono_bar]

*Legion Y740 (15) performance, with the Intel Core i5-10400 benchmark result set to 100

PCMark10’s “Overall" reflects total PC performance. “Essentials" reflects everyday tasks like launching apps and browsing. “Productivity" reflects office-suite work like word processing and spreadsheets. “Digital Content Creation" reflects creative work — photo, video, and 3D graphics.

It holds its own against a desktop PC without embarrassment.

Legion Y740 (15) baseline performance: it clears the performance of a typical mainstream Core i5 desktop PC. You’re unlikely to feel short on power for ordinary work, whatever you’re doing.

Standard Benchmark Results

Including the figures above, here are the standard benchmark results side by side. For VR use, this is more than enough performance.

BenchmarkScore
SteamVR Performance TestAverage fidelity: 11.0 (Very high)
Frames tested: 14,208
VRMarkOrange Room: 7,780
Cyan Room: 7,451
Blue Room: 2,480
3DMARKTime Spy: 7,462
Fire Strike: 16,188
PCMARK10OVERALL: 5,436
Essentials: 8,491
Productivity: 6,561
Digital Content Creation: 7,826
CINEBENCH R20CPU: 2,555
Single Core: 425
FINAL FANTASY XVHigh quality: 8,143 (Comfortable)
FINAL FANTASY XIVMaximum quality: 15,217 (Extremely comfortable)

Even the comparatively heavy “Final Fantasy XV" runs at high quality without trouble.

Storage

The C Drive

The unit carries a fast Samsung SSD, the “MZVLB1T0HALR-000L2," supporting PCIe 3.0 x4.

Sequential read comes in above 3,000MB/s, putting it in the fast tier even among M.2 SSDs.

The D Drive

For data storage, there’s a 1TB Seagate HDD. Combined with the SSD above, the 2TB of total capacity should feel comfortable even for creative work.

Sequential read comes in around 200MB/s — a fairly typical speed for a hard drive.

Power Draw and Noise

For reference, I measured power draw and noise. The battery was at 100%, with the fan mode set to “Performance."

StatePower drawNoise
Powered off0W32dB
Idle (“Performance" mode)75W37dB
Under load (3DMark)225W50dB

Even with the fan set to “Performance," it doesn’t spin up until heat actually builds up inside the chassis.

Once the fan does kick in, you can hear it, but it’s a fairly low-pitched sound that doesn’t stand out much.

Power measurement

Noise

Measured from the center of the laptop, 15cm above the deck, right at the edge closest to me.

Trying Various Headsets

I checked what kind of frame rate you get with each headset.

Oculus Rift S

The Oculus Rift S refreshes at 80Hz. I measured the frame rate in each app.

With the Oculus Rift S’s graphics setting on “Prioritize performance," every app I tested here comfortably cleared 80fps.

Comfortable to use.

Oculus Quest

The Oculus Quest refreshes at 72Hz. I measured the frame rate in each app.

[kimono_bar title="Oculus Quest (resolution 1.0x) x Legion Y740 (15)" unit="fps" color="#1e90ff"]
Asgard’s Wrath high|78
[/kimono_bar]

I ran this test with the Oculus app’s rendering resolution set to “1.0x."

Just like the Rift S, every app here cleared 72fps.

Comfortable to use.

Oculus Quest 2

The Oculus Quest 2 can refresh at 72Hz, 80Hz, or 90Hz. I measured the frame rate in each app.

[kimono_bar title="Oculus Quest 2 (resolution 1.0x) x Legion Y740 (15)" unit="fps" color="#1e90ff"]
Asgard’s Wrath high|73
[/kimono_bar]

I ran this test with the rendering resolution set to “1.0x."

Just like the Quest, every app here cleared 72fps.

Comfortable to use.

Vive Cosmos Elite

The Vive Cosmos Elite refreshes at 90Hz. I measured the frame rate in each app.

[kimono_bar title="Vive Cosmos Elite x Legion Y740 (15)" unit="fps" color="#1e90ff"]
Half Life:ALYX max quality|91
Asgard’s Wrath easy|95
Asgard’s Wrath high|61
[/kimono_bar]

I ran this test with the Vive Cosmos Elite’s supersampling setting at 100%.

With the very demanding Asgard’s Wrath set to high quality, frames start dropping.

For the most part it’s comfortable, but for some apps you’ll want to turn the quality down a notch.

Pimax 8K Plus

The Pimax 8K Plus can refresh at 72Hz, 90Hz, or 110Hz. I measured the frame rate in each app.

[kimono_bar title="Pimax 8K Plus (Normal) x Legion Y740 (15)" unit="fps" color="#1e90ff"]
Half Life:ALYX max quality|78
Asgard’s Wrath easy|73
Asgard’s Wrath high|45
[/kimono_bar]

I ran this test with the Pimax 8K Plus’s field-of-view setting at “Normal."

The very demanding Asgard’s Wrath drops frames at high quality, but everything else here clears 72fps.

For the most part it’s comfortable, but again, some apps benefit from a lower quality setting.

What I Could Not Verify

This is a single unit on loan from Lenovo, so I can’t say how much these numbers would vary between individual units. I didn’t run a battery-life test under continuous VR load, and I didn’t test mining or video-encoding workloads on this configuration.

In Summary: A High-Value 15-Inch VR Laptop, One Generation Behind

I’ve gone through the performance of Lenovo’s high-value model, the Legion Y740 (15).

What stood out as good:

・An easy-to-use design with the ports concentrated on the back
・Well-balanced specs paired with strong cost performance

What I would not recommend it for:

・At roughly 2.2kg, it’s not exactly light
・A somewhat larger chassis than comparable laptops from other brands

The Legion Y740 (15)’s design, with what almost looks like a docking station built in behind the display hinge, gives it a distinctive sense of stability. It’s genuinely convenient to use, but it does come at the cost of a larger overall footprint than comparable laptops.

HeadsetVerdict
Oculus Rift SRuns with plenty of headroom.
Oculus QuestRuns with plenty of headroom.
Oculus Quest 2Runs with plenty of headroom.
Vive Cosmos ElitePlenty usable.
You may want to drop some apps to a lower quality setting.
Pimax 8K PlusPlenty usable.
You may want to drop some apps to a lower quality setting.

It has enough performance to genuinely enjoy VR, while staying just barely within the size and weight range you could still carry around.

Now that it’s a previous-generation model with even better cost performance than before, this might be a good time to buy.