Best TV for Steam Machine
The Steam Machine is a living-room cube. Plug HDMI into the TV, leave DisplayPort empty, and Gaming Mode will stay on one panel. Valve’s HDMI jack is still printed “2.0,” but the current SteamOS stack already does HDMI 2.1 VRR — FreeSync and HDMI Forum — at 4K 120 Hz with compression. The GPU behind that cable is a 28 CU Navi 33 with 8 GB. Digital Foundry’s honest target is native 1440p; 4K on a sofa is FSR plus VRR, not a 77-inch tandem OLED. The television is a 55-inch LG C5.
Our Top Picks at a Glance
Reviewed August 2026 · Matched to Valve Steam Machine (Navi 33 28 CU, 8 GB, HDMI 4K 120 VRR)
55-inch WOLED evo, four HDMI 2.1, FreeSync Premium, 4K 120 (144 Hz unused). Game Mode + HGiG. The sofa size this GPU can feed.
Check Price at Amazon Read full review ↓Same 55-inch OLED blacks and four HDMI 2.1 at 4K 120. Dimmer panel, α8 chip. Buy when it is clearly cheaper than the C5.
Check Price at Amazon Read full review ↓55-inch QD Mini-LED, 4K 144 Hz panel, FreeSync Premium Pro, ALLM. Bright-room HDR when OLED money is gone.
Check Price at Amazon Read full review ↓Disclosure: This page contains affiliate links. As an Amazon Associate affiliate, we earn a small commission from qualifying purchases at no extra cost to you.
Comparison Table
| Product | Best for | Size / panel | HDMI / VRR | This GPU | Price | Buy |
|---|---|---|---|---|---|---|
| OLED55C5PUA | Default sofa | 55″ WOLED evo | 4× HDMI 2.1 · FS Premium | 4K 120 + FSR | ~$800–$1,200 | Check |
| OLED55B5PUA | Cheaper OLED | 55″ WOLED | 4× HDMI 2.1 · FS Premium | 4K 120 + FSR | ~$700–$1,000 | Check |
| 55QM7K | Bright room | 55″ QD Mini-LED | HDMI 2.1 · FS Premium Pro | 4K 120 + FSR | ~$550–$750 | Check |
| OLED65C5PUA | Sit farther back | 65″ WOLED evo | Same as C5 | Same 4K 120 | ~$1,200+ | Check |
| C6 / G5 55–77″ | Skip (tax) | WOLED / tandem | HDMI 2.1 144–165 | Unused Hz | $1,500+ | Check |
How We Picked These TVs
- The box: Digital Foundry’s Steam Machine review: Zen 4 6C/12T (two Zen 4 + four Zen 4c, 30 W, up to 4.8 GHz), Navi 33 cut to 28 CUs / ~110 W with 8 GB GDDR6, 16 GB single-channel DDR5-5600, ~152 × 162 × 156 mm, internal PSU. Street start $1,049 / £879 (512 GB) or $1,349 / £1,149 (2 TB). DF matched it between an RX 6600 and an RX 7600. Valve’s 4K 60 line is “it works with a 4K TV” plus FSR; DF’s preferred target on demanding titles is native 1440p / ~60 with settings. Steam Machine Verified still uses 1080p as the test floor. This page is the 2026 Valve cube, not a 2015 third-party Steam Machine.
- The cable: Rear HDMI is silkscreened 2.0; DisplayPort 1.4 already does 4K 144 or 4K 240 with DSC. Almost no TV has DP. In June 2026 Valve’s Pierre-Loup Griffais told Digital Foundry the current Steam Machine stack has HDMI 2.1 VRR on FreeSync and HDMI Forum sets, and 4K 120 Hz over HDMI with compression. A later FRL update is meant to add 4K 144 uncompressed and 4K 240 with DSC on HDMI — that is future headroom, not a reason to buy a 240 Hz TV today. Gaming Mode drives one display; with both cables in, HDMI usually wins. Valve: passive DP-to-HDMI is not supported; use an active adapter or the native HDMI port. Use a certified Ultra High Speed HDMI cable.
- The sofa math: 55-inch 4K at ~7–8 feet is the living-room default. Four HDMI 2.1 ports, ALLM, VRR, and a Game Mode that actually drops processing matter more than 165 Hz or 2,000-nit tandem peak. C5’s 144 Hz and C6/G5 brightness are unused on a 28 CU / 8 GB chip. Mini-LED (QM7K) wins a sunlit room and loses OLED blacks. 42-inch WOLED is a desk monitor with a tuner; that job is the 27-inch 1440p page on this site.
Best TV for Steam Machine: Detailed Reviews
LG OLED55C5PUA View on Amazon
| SKU / ASIN | OLED55C5PUA (2025 C5) · B0FBT6JCH1 |
|---|---|
| Panel | 54.6″ class WOLED evo · 3840 × 2160 · ~120 Hz native (144 Hz advertised) |
| HDMI / VRR | 4× HDMI 2.1 · eARC · ALLM · AMD FreeSync Premium · G-Sync compatible · HGiG |
| HDR / OS | Dolby Vision / HDR10 / HLG · webOS · α9 Gen8 |
| On this Machine | HDMI 4K 120 VRR today · 144 Hz unused · FSR for 4K, or 1440p output |
Why it fits the Steam Machine. Four full-bandwidth HDMI 2.1 sockets mean the cube, a Blu-ray player, and a soundbar can sit on the same strip without a 2.0 port stealing VRR. Game Optimizer + HGiG is the HDR path that does not double-tone-map Proton titles. FreeSync Premium is the VRR Valve already enabled on this stack. 55 inches is large enough for a couch and small enough that FSR 4K still looks like a picture, not a 77-inch magnifier of 8 GB texture cuts. The C5’s extra brightness and α9 chip over the B5 are the only upgrades this GPU will show; the 144 Hz number will not. Buy the US OLED55C5PUA, not a C4 unless it is dramatically cheaper, and not a C6 because the 2026 chassis is a newer sticker on the same 4K 120 cable.
Skip this if the room is a sunroom — Mini-LED. Skip it if the B5 is $200+ cheaper and you sit in the dark. Skip 65-inch unless the couch is past about nine feet.
- Per-pixel contrast, four HDMI 2.1, FreeSync Premium
- Matches current Machine HDMI: 4K 120 + VRR
- 55-inch is the size FSR 4K can still survive
- 144 Hz / extra nits unused on 28 CU
- OLED glare in a bright box vs QM7K
LG OLED55B5PUA View on Amazon
| SKU / ASIN | OLED55B5PUA (2025 B5) · B0FFXN5PN9 |
|---|---|
| Panel | 55″ class WOLED · 3840 × 2160 · 120 Hz |
| HDMI / VRR | 4× HDMI 2.1 · ALLM · FreeSync Premium · G-Sync compatible |
| Chip / HDR | α8 AI Gen2 · Dolby Vision / HDR10 / HLG · webOS |
| Vs C5 | Dimmer, no evo Brightness Booster, no 144 Hz — same ports this cube uses |
Why it fits the Steam Machine. The Machine does not need the C5’s extra nits to look like a console. It needs a 120 Hz VRR HDMI 2.1 socket, Game Mode, and per-pixel black for Proton HDR that is often mid-bright. The B5 keeps all four 2.1 inputs. Sit in a dim room and the gap to C5 collapses. Confirm OLED55B5PUA / B5 series, not a B4 with fewer working 2.1 ports in some sizes, and not a “B5P” grey-import listing. If C5 and B5 are within a hundred dollars, take C5. If B5 is the sale, this is the OLED that matches the cable.
Skip this if afternoon sun hits the panel — QM7K. Skip it if you already own any 2019–2024 LG C/B with HDMI 2.1; keep that TV and buy games.
- Real OLED + four HDMI 2.1 at 4K 120
- Usually the cheaper LG on this list
- Same Game Mode / HGiG path as C5
- Dimmer than C5; α8, not α9
- Still OLED burn-in hygiene for HUDs
TCL 55QM7K View on Amazon
| SKU / ASIN | 55QM7K (2025 QM7K) · B0DVWXXRDL |
|---|---|
| Panel | 55″ QD Mini-LED / HVA · 3840 × 2160 · 144 Hz native |
| Gaming | ALLM · AMD FreeSync Premium Pro · Game Accelerator (VRR window advertised to 240) |
| HDR / OS | Dolby Vision IQ, HDR10+, HDR10, HLG · Google TV |
| Not this SKU | 55QM751G (2024 QM7) · 4-series 60 Hz · 65/75 QM8K flagship as the default |
Why it fits the Steam Machine. Mini-LED is how you keep HDR highlights when the blinds stay open. FreeSync Premium Pro is the AMD-friendly VRR this GPU already speaks. 4K 120 from the Machine lands inside the panel’s 144 Hz native rate; the “240” Game Accelerator number is a VRR ceiling, not a frame-rate the 28 CU chip will hold. Blooming around subtitles and mouse cursors is the tax versus OLED. Google TV is fine; you are not using the TV’s apps as the game OS. Confirm 55QM7K on the box. A 2024 55QM751G is acceptable if it is much cheaper and still lists HDMI 2.1 + FreeSync Premium Pro — do not drop to a 60 Hz TCL to “save” against a $1,049 cube.
Skip this if the room is dark and B5 is on sale — OLED. Skip 75-inch QM7K/QM8K unless the sofa is a row of cinema seats; this GPU will not paint that wall at native 4K.
- Bright HDR, FreeSync Premium Pro, 4K 120 ready
- Usually hundreds under a C5
- Anti-reflective 2025 QM7K glass vs older QM7
- Halo / blooming vs OLED
- Narrower viewing angle than WOLED
If You Need Something Else
These two are not cheaper versions of the Top 3. One is the same C5, larger. One is the 2026 sticker tax.
LG OLED65C5PUA View on Amazon
| SKU | OLED65C5PUA · same C5 feature set, 65-inch class |
|---|---|
| When it wins | Couch past ~9 feet, or a wide wall where 55-inch looks like a monitor |
| Same limits | Still 4K 120 from this HDMI jack · still FSR / 1440p on heavy titles |
Do not buy 65 inches to “use more of the GPU.” The chip does not gain CUs at 65. You buy inches for seating distance. If 55-inch already fills the chair, keep the money for a 2 TB SSD. Same rule: Ultra High Speed HDMI, Game Mode, one cable.
Skip this if you sit 6–7 feet from the wall — 55-inch C5 or B5.
LG C6 / G5 and 75–77-inch flagships View on Amazon
| Why they show up | 2026 “newer model” badge next to a $1,049 cube |
|---|---|
| C6 55″ | Same 4K 120 HDMI story this year; extra money for a chassis this GPU does not fill |
| G5 / 77″ / 8K | Tandem nits and wall size. 8 GB + 28 CU is the wrong feed. |
A later SteamOS FRL update may unlock 4K 144 or 4K 240 DSC on HDMI. That still does not turn Navi 33 into a 5080. If you already own a C6 or a 65-inch G-series, use it. Do not buy one to “future-proof” this Machine. Same skip: 42-inch C-series as the living-room TV (desk? buy the 27-inch 1440p monitor article), and any 60 Hz 4K Roku special.
Skip this if the PC is a Steam Machine. Buy the C5, the B5, or the QM7K.
Frequently Asked Questions
HDMI or DisplayPort to the TV?
HDMI. TVs do not have DisplayPort. Gaming Mode prefers HDMI when both jacks are live, and Valve’s current stack already does 4K 120 VRR on that port. Keep DP for a desk monitor; unplug it during TV nights. Passive DP-to-HDMI adapters are not the official path.
Should I set 1440p on a 4K TV?
Yes, on heavy games. DF prefers native 1440p on this GPU; Valve’s 4K 60 claim assumes FSR. SteamOS can output 1440p to a 4K panel (the TV scales). Use it when VRAM warnings appear or frame times fall apart at 4K.
Do I need a new HDMI cable?
For 4K 120 and VRR, use a certified Ultra High Speed (48 Gbps) cable. a 4K 60 “High Speed” lead is why people think the Machine “only does 60.”
What about the TV I already own?
If it has HDMI 2.1, ALLM, and VRR (FreeSync or HDMI Forum), keep it. This page is for a new purchase, not a reason to replace a C3/C4 or a QM7 that already works.
Final Verdict
For most Steam Machines, buy a 55-inch C5, run HDMI only, and treat 4K as FSR plus VRR. If the C5 is spendy, B5. Sunlit room? QM7K. Skip C6, G5, and 77-inch walls. This GPU is a 1440p chip talking to a 4K sofa — size the TV to the couch, not to a 5080 brochure.