120Hz or 90Hz Handheld Gaming PCs? Compared by Specs
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When deciding on a 120Hz vs 90Hz handheld gaming PC, refresh rate defines visual smoothness. Both devices run PC gaming libraries on portable hardware with AMD processors. The Lenovo Legion Go S delivers a 120Hz refresh rate on an 8-inch screen with 1920x1200 resolution, 32GB RAM, and 1TB SSD storage. The Valve Steam Deck OLED provides a 90Hz refresh rate on a 7.4-inch HDR OLED display with 512GB storage.
Key differences
| Aspect | Lenovo Legion Go S 8" 120Hz | Valve Steam Deck OLED 512GB |
|---|---|---|
| Refresh rate | 120Hz | 90Hz |
| Screen size | 8 inches | 7.4 inches |
| Display type | not listed | HDR OLED |
| Screen resolution | 1920 x 1200 | not listed |
| RAM | 32GB | not listed |
| Storage capacity | 1TB SSD | 512GB SSD |
Which one should you choose?
Choose Lenovo Legion Go S 8" 120Hz if
- You want a 120Hz refresh rate alongside a 1920x1200 resolution on an 8-inch screen.
- You need 32GB of RAM and 1TB of internal SSD storage.
Choose Valve Steam Deck OLED 512GB if
- You prefer an HDR OLED panel for deeper contrast at a 90Hz refresh rate.
- You want a 7.4-inch display with Wi-Fi 6E connectivity.
Verdict: The Lenovo Legion Go S fits you if you want a faster 120Hz screen, higher resolution, and greater memory capacity. The Valve Steam Deck OLED suits you if you prioritize an HDR OLED display at 90Hz in a slightly smaller form factor.
Spec Comparison of Handheld Gaming PCs
Refresh Rate Performance
Refresh rate dictates how many frames per second the screen can show you. The Lenovo Legion Go S 8" 120Hz features a 120Hz display, cycling frames up to 120 times each second. In comparison, the Valve Steam Deck OLED 512GB tops out at a 90Hz refresh rate. While 90Hz ensures fluid motion across your handheld library, the 120Hz panel on the Lenovo unit handles fast-moving action with higher ceiling clarity. If you play games capable of high frame rates, the 120Hz hardware renders updates more rapidly, giving the Lenovo Legion Go S the edge in raw refresh capability.
Display Panel Technology
Panel technology shapes visual contrast and black levels during gameplay. The Valve Steam Deck OLED 512GB is equipped with an HDR OLED display. OLED technology provides true blacks and vibrant contrast because pixels emit light independently. The Lenovo Legion Go S 8" 120Hz lists an 8-inch WUXGA screen, but its data does not specify an OLED panel or HDR support. For titles that rely on dark scenes, high dynamic range lighting, or deep contrast, the dedicated HDR OLED hardware on the Valve Steam Deck OLED delivers a distinct viewing experience that the Lenovo handheld does not match in published display specifications.
Internal Storage Capacity
Internal storage determines how many game installs you can carry without swapping drives. The Lenovo Legion Go S 8" 120Hz arrives with a 1TB SSD, giving you double the local room found on the competing unit. The Valve Steam Deck OLED 512GB comes upgraded with a 512GB SSD. Modern game installations frequently require 50GB to 100GB each. That means 512GB fills up quickly once you install several larger releases. With 1TB of solid-state space, the Lenovo Legion Go S provides more room out of the box, reducing how often you need to uninstall games to make space.
System Memory
System memory allows your handheld to run demanding software smoothly while managing operating system background tasks. The Lenovo Legion Go S 8" 120Hz comes configured with 32GB of RAM. This generous memory pool gives the processor ample headroom when running modern titles and multitasking. In contrast, the provided specifications for the Valve Steam Deck OLED 512GB do not state an included RAM amount. Because system RAM is confirmed at 32GB on the Lenovo handheld and unlisted on the Valve model, the Lenovo Legion Go S provides clear verification of substantial memory bandwidth and capacity for your portable setup.
Wireless Connectivity
Wireless capabilities dictate how fast you download large titles and how reliably your wireless peripherals connect. The Valve Steam Deck OLED 512GB includes Wi-Fi 6E connectivity, designed for faster download speeds and lower network latency on modern home routers. It also features a dedicated Bluetooth antenna to maintain stable links when pairing multiple external controllers. Meanwhile, the specifications for the Lenovo Legion Go S 8" 120Hz do not list Wi-Fi generation or Bluetooth details. If you prioritize explicit network bandwidth and dedicated wireless controller support, the Valve Steam Deck OLED holds the published hardware advantage here.
Choosing Your Handheld Gaming PC
Players who need maximum onboard memory and storage
You get 32GB of RAM paired with an AMD Ryzen Z1 Extreme processor and a 1TB SSD. This memory allocation allows you to handle memory-heavy PC games. The 1TB solid-state drive also provides double the internal storage capacity over the rival 512GB configuration for storing your game library.
Players seeking HDR OLED contrast and Wi-Fi 6E
You receive a 7.4-inch HDR OLED display designed for vibrant colors and pure blacks. The unit also includes Wi-Fi 6E connectivity, which delivers faster wireless downloads and lower latency on compatible networks. It features built-in trackpads and a dedicated Bluetooth antenna to maintain connections with multiple controllers.
Users prioritizing higher display resolution and panel size
You gain an 8-inch screen offering 1920x1200 resolution powered by AMD Radeon 780M graphics. This provides a larger viewing surface and higher pixel density than a 7.4-inch panel. If you prefer larger handheld dimensions alongside SteamOS and 120Hz motion capabilities, this hardware configuration fits your specific portable setup.
Quick picks
| # | Product | Best for | Price |
|---|---|---|---|
| 1 | Lenovo Legion Go S 8" 120Hz | Large-screen portable gaming with high RAM | Check price of Lenovo Legion Go S 8" 120Hz on Amazon |
| 2 | Valve Steam Deck OLED 512GB | OLED visuals and 90Hz portable PC gaming | Check price of Valve Steam Deck OLED 512GB on Amazon |
The products compared
Lenovo Legion Go S 8" 120Hz
Best for: Large-screen portable gaming with high RAM
- Refresh Rate
- 120Hz (what this guide is about)
- Processor
- AMD Ryzen Z1 Extreme
- RAM
- 32GB
- Storage
- 1TB SSD
- Screen Size
- 8"
- Resolution
- 1920x1200
View on Amazon: Lenovo Legion Go S 8" 120Hz Affiliate link
The Lenovo Legion Go S features an AMD Ryzen Z1 Extreme processor paired with 32GB of RAM. It includes a 1TB SSD and an 8-inch WUXGA display with a 120Hz refresh rate. The device runs SteamOS and uses AMD Radeon graphics. This setup supports smooth gameplay for portable gaming. You get a high-resolution screen and ample storage for your library.
Pros
- AMD Ryzen Z1 Extreme processor for strong performance
- 32GB RAM for multitasking and heavy games
- 1TB SSD provides ample game storage
- 8-inch WUXGA display with 120Hz refresh rate
Cons
- 1920x1200 resolution is lower than 4K alternatives
- SteamOS may limit compatibility with non-Steam titles
- No mention of advanced thermal management features
Good fit if
- You want high RAM for smooth multitasking
- You prefer a large 8-inch screen
- You need a 1TB storage capacity
Skip if
- You require 4K resolution for maximum clarity
- You need Windows for specific non-Steam software
- You prefer a smaller, more portable form factor
Verdict: Lenovo Legion Go S 8-Inch Handheld is ideal for gamers who prioritize screen size and memory capacity. It suits those who want a large display and fast storage for their portable gaming setup.
Valve Steam Deck OLED 512GB
Best for: OLED visuals and 90Hz portable PC gaming
- Refresh Rate
- 90Hz (what this guide is about)
- Storage
- 512GB SSD
- Screen Size
- 7.4"
- Display Type
- HDR OLED
- Color
- Black
- Size
- 2TB
View on Amazon: Valve Steam Deck OLED 512GB Affiliate link
This handheld gaming PC pairs a 7.4-inch HDR OLED display with a 90Hz refresh rate. It runs on an updated AMD APU and includes 512GB of SSD storage alongside Wi-Fi 6E connectivity. Built-in trackpads and a dedicated Bluetooth antenna handle control inputs. It suits you if you want deep OLED contrast and fluid motion without needing a 120Hz panel.
Pros
- 7.4-inch HDR OLED display with pure blacks
- 90Hz refresh rate for fluid motion
- Wi-Fi 6E connectivity for low latency and fast downloads
- Built-in trackpads and dedicated Bluetooth antenna
Cons
- 90Hz ceiling is lower than the 120Hz screens on competing handhelds
- Factory seal is opened to install the 512GB SSD upgrade
Good fit if
- You want an HDR OLED screen running at 90Hz for vibrant color and contrast.
- You use dual trackpads alongside standard controller inputs for PC navigation.
Skip if
- You require a 120Hz refresh rate for competitive high-frame-rate titles.
- You prefer an unopened factory seal straight from the original manufacturer.
Verdict: Valve Steam Deck OLED 90Hz Handheld suits PC gamers who prioritize vibrant HDR OLED contrast and built-in trackpads over a 120Hz display.
Specifications side by side
| Spec | Lenovo Legion Go S 8" 120Hz | Valve Steam Deck OLED 512GB |
|---|---|---|
| Processor | AMD Ryzen Z1 Extreme | not stated |
| RAM | 32GB | not stated |
| Storage | 1TB SSD | 512GB SSD |
| Screen Size | 8" | 7.4" |
| Refresh Rate | 120Hz | 90Hz |
| Display Type | not stated | HDR OLED |
| Resolution | 1920x1200 | not stated |
| Graphics | AMD Radeon 780M | not stated |
| Operating System | SteamOS | not stated |
| Storage Capacity | 1TB | 512GB |
| Screen Resolution | 1920 x 1200 | not stated |
| Color | Nebula Nocturne | Black |
| Size | not stated | 2TB |
| Graphics Card | AMD Radeon | not stated |
| Memory | 32GB | not stated |
| Platform | not stated | PC |
| Model | 8APU1 | not stated |
Frequently asked questions
What visual difference will you see between 120Hz and 90Hz displays?
A 120Hz screen refreshes thirty more times per second than a 90Hz panel. This provides marginally smoother visual tracking during rapid on-screen movement. The Lenovo Legion Go S targets this higher ceiling with its 120Hz screen. Meanwhile, the Valve Steam Deck OLED caps its refresh rate at 90Hz, which still exceeds standard 60Hz displays.
Does screen resolution differ between these 120Hz and 90Hz handhelds?
Yes, panel resolution differs between these models. The Lenovo Legion Go S pairs its 120Hz capability with a 1920 x 1200 resolution across an 8-inch viewable area. In comparison, the Valve Steam Deck OLED provides a 7.4-inch display running at 90Hz, using OLED panel technology instead of a higher pixel count.
How does display panel technology compare between these handhelds?
The primary difference in display construction is panel type. The Valve Steam Deck OLED utilizes an OLED display that runs at 90Hz on a 7.4-inch panel. The Lenovo Legion Go S focuses on screen dimensions and speed instead, providing an 8-inch display that operates at 120Hz with a 1920 x 1200 resolution.
Which operating systems do these handheld gaming PCs run?
Both handhelds run dedicated PC gaming environments. The Lenovo Legion Go S comes equipped with SteamOS to manage your games on its 120Hz screen. The Valve Steam Deck OLED operates on the PC platform, giving you immediate access to computer titles matched to its 90Hz OLED display.
How do the processors and memory configurations compare?
Internal hardware specifications differ between the units. The Lenovo Legion Go S features an AMD Ryzen Z1 Extreme processor, AMD Radeon graphics, and 32GB of system memory. The Valve Steam Deck OLED lists 512GB of internal storage to hold your game files alongside its 90Hz refresh rate display.
How much built-in storage do these handheld gaming PCs provide?
Built-in storage capacity varies across these handhelds. The Lenovo Legion Go S comes with 1TB of internal storage alongside its 32GB memory configuration. In comparison, this Valve Steam Deck OLED model provides 512GB of base storage capacity to install your PC titles directly on the handheld device.