Buying Guide
The Best PC Cases for the RTX 5080
Six cases compared on GPU room for RTX 5080 cards up to the 357mm ROG Astral, plus cooler and radiator fit.
By The PC Journal editorial team
12 min read6 products evaluated
RTX 5080 cards vary in size: the Founders Edition is 304mm, the ASUS TUF is rated at 348mm and the ROG Astral at 357mm. The smaller cases here clear those figures only narrowly, so check your exact card.
We compared the GPU length, cooler height and radiator limits the case makers list; we did not build in these cases ourselves.
Quick Picks
Our 6 recommendations at a glance. Tap a pick for the full verdict.
Best Fit for an RTX 5080
MONTECH XR
420mm of GPU room and a 230mm PSU limit.
Best for: Any RTX 5080, including the longest.
Best Glass Tower
be quiet! Light Base 600 DX
400mm of GPU room with dual radiator support.
Best for: Glass showcase builds.
Our take Check price for be quiet! Light Base 600 DX (opens in a new tab)
Best Dual-Chamber mATX
Lian Li O11 Vision-M
410mm of GPU room in a dual-chamber mATX case.
Best for: Compact showcase builds.
Our take Check price for Lian Li O11 Vision-M (opens in a new tab)
Most GPU Room
JONSBO D33
435mm of listed GPU clearance.
Best for: Maximum room for large cards.
Best Portable Case
JONSBO Z20
363mm of GPU room in 20 litres with a carry handle.
Best for: LAN parties and small desks.
Smallest Case Here
Lian Li B4-mATX (Mesh)
358mm of GPU room in 21.3 litres.
Best for: Compact mATX builds.
Our take Check price for Lian Li B4-mATX (Mesh) (opens in a new tab)
| Pick | Why it’s here | Best for | Price |
|---|---|---|---|
| 420mm of GPU room and a 230mm PSU limit. | Any RTX 5080, including the longest. | Check price for MONTECH XR (opens in a new tab) |
| 400mm of GPU room with dual radiator support. | Glass showcase builds. | Check price for be quiet! Light Base 600 DX (opens in a new tab) |
| 410mm of GPU room in a dual-chamber mATX case. | Compact showcase builds. | Check price for Lian Li O11 Vision-M (opens in a new tab) |
| 435mm of listed GPU clearance. | Maximum room for large cards. | Check price for JONSBO D33 (opens in a new tab) |
| 363mm of GPU room in 20 litres with a carry handle. | LAN parties and small desks. | Check price for JONSBO Z20 (opens in a new tab) |
| 358mm of GPU room in 21.3 litres. | Compact mATX builds. | Check price for Lian Li B4-mATX (Mesh) (opens in a new tab) |
Our Picks
Best Fit for an RTX 50801 of 6
MONTECH XR on Amazon (opens in a new tab)
The Montech XR lists the most complete set of figures in this price range: 420mm for the GPU, 175mm for the cooler and 230mm for the power supply.
Best for
- Any RTX 5080, including the longest.
Skip if
- Skip it if this is a deal-breaker for you: gPU clearance of 420mm, behind the D33 (435mm).
Why we like it
Three ARGB fans come fitted, and the glass front and side show off the build. Its 420mm GPU clearance ranks second of 6 here, behind the D33 (435mm) and ahead of the B4-mATX (358mm). On CPU cooler clearance it leads this guide at 175mm, ahead of the D33 (172mm).
On largest radiator size it ties with the Light Base 600 DX, the O11 Vision-M, the D33 and the B4-mATX at 360mm. Nothing else here matches its 230mm PSU length limit; the O11 Vision-M comes closest at 182mm. It also comes with mounting for up to nine fans.
GPU limit in the XR: 420mm, before front fans. The XR takes 360mm radiators; mind RAM height. It was the cheapest of the group when we checked; the O11 Vision-M was the next step up. Buyers who need a confirmed volume should compare it with the Z20, which comes in at 20L.
Key dimensions & specs
- Max GPU length: 420mm
- Max CPU cooler height: 175mm
- Largest radiator: 360mm
- Max PSU length: 230mm
- Fans included: 3
- Glass: Panoramic front and side glass
- Front USB-C: Yes
Pros
- Room for graphics cards up to 420mm long
- Takes tower air coolers up to 175mm tall
- Fits a 360mm radiator
- 3 fans included
Cons
- GPU clearance of 420mm, behind the D33 (435mm)
Best Glass Tower2 of 6
be quiet! Light Base 600 DX on Amazon (opens in a new tab)
The Light Base 600 DX pairs a full glass front and side with dual 360mm plus 240mm radiator support.
Best for
- Glass showcase builds.
Skip if
- The maker gives no PSU length limit, so look elsewhere if that figure decides it for you.
Why we like it
It fits a 400mm graphics card and a 170mm tower cooler, with an anti-sag bracket included. The dual radiator support means a 360mm CPU cooler and a 240mm GPU loop can run side by side, though the maker doesn't state a fan count. Its 400mm GPU clearance ranks fourth of 6 here, behind the D33 (435mm) and ahead of the B4-mATX (358mm).
Its 170mm CPU cooler clearance ranks third of 5 here, behind the XR (175mm) and ahead of the O11 Vision-M (162mm). On largest radiator size it ties with the XR, the O11 Vision-M, the D33 and the B4-mATX at 360mm. You get ATX motherboards here, which sets it apart from the B4-mATX and its mATX motherboards.
It was the most expensive pick when we checked, so weigh what it adds over the D33. Buyers who need a confirmed PSU length limit should compare it with the XR, which comes in at 230mm.
Key dimensions & specs
- Max GPU length: 400mm
- Max CPU cooler height: 170mm
- Largest radiator: 360mm
- Motherboards: ATX
- Glass: Full glass front and side
Pros
- Room for graphics cards up to 400mm long
- Takes tower air coolers up to 170mm tall
- Fits a 360mm radiator
- Full glass front and side
Cons
- No published PSU length limit
- Costs more than the XR at the time of writing
Best Dual-Chamber mATX3 of 6
Lian Li O11 Vision-M on Amazon (opens in a new tab)
The O11 Vision-M brings Lian Li's dual-chamber layout to Micro-ATX, with 410mm of GPU room and a 360mm top radiator.
Best for
- Compact showcase builds.
Skip if
- Look at the others if this bothers you: only 1 fan in the box.
Why we like it
It does not take ATX or back-connect boards, and only one fan comes fitted. On GPU clearance it sits mid-pack at 410mm: the D33 comes in at 435mm, and the B4-mATX comes in at 358mm. On CPU cooler clearance it trails the group at 162mm, while the XR comes in at 175mm.
It matches the XR, the Light Base 600 DX, the D33 and the B4-mATX on largest radiator size (360mm). Its 182mm PSU length limit ranks second of 3 here, behind the XR (230mm) and ahead of the B4-mATX (140mm). You also get a pre-installed 140mm PWM fan in the second chamber.
GPU limit in the O11 Vision-M: 410mm, before front fans. The O11 Vision-M takes 360mm radiators; mind RAM height. 182mm is the O11 Vision-M's PSU length cap.
It was priced above the XR and below the B4-mATX at the time of writing. It gives ground on CPU cooler clearance, where the XR comes in at 175mm.
Key dimensions & specs
- Max GPU length: 410mm
- Max CPU cooler height: 162mm
- Largest radiator: 360mm
- Max PSU length: 182mm
- Fans included: 1
- Motherboards: mATX, Mini-ITX (no ATX or back-connect)
Pros
- Room for graphics cards up to 410mm long
- Fits a 360mm radiator
- Pre-installed 140mm PWM fan in the second chamber
- Dual-chamber layout
Cons
- Only 1 fan in the box
- CPU cooler clearance trails the XR (175mm)
- Costs more than the XR at the time of writing
Most GPU Room4 of 6
JONSBO D33 on Amazon (opens in a new tab)
The D33 offers 435mm of GPU room and a 172mm cooler limit, the most generous figures in this Micro-ATX group.
Best for
- Maximum room for large cards.
Skip if
- Pass if a published PSU length limit matters; this one has none.
Why we like it
It also takes back-connect mATX BTF boards and has a front USB-C port. Nothing else here matches its 435mm GPU clearance; the XR comes closest at 420mm. On CPU cooler clearance it sits mid-pack at 172mm: the XR comes in at 175mm, and the O11 Vision-M comes in at 162mm.
It matches the XR, the Light Base 600 DX, the O11 Vision-M and the B4-mATX on largest radiator size (360mm). You also get nine fan positions, a magnetic front grille and two 3.5-inch and two 2.5-inch drive bays. GPU limit in the D33: 435mm, before front fans.
The D33 takes 360mm radiators; mind RAM height. Boards: Micro-ATX, Mini-ITX, mATX BTF. It was priced above the Z20 and below the Light Base 600 DX at the time of writing. There is no published PSU length limit figure, whereas the XR comes in at 230mm.
Key dimensions & specs
- Max GPU length: 435mm
- Max CPU cooler height: 172mm
- Largest radiator: 360mm
- Motherboards: Micro-ATX, Mini-ITX, mATX BTF
- PSU type: ATX or SFX
- Front USB-C: Yes
Pros
- Room for graphics cards up to 435mm long
- Takes tower air coolers up to 172mm tall
- Fits a 360mm radiator
- A front USB-C port
Cons
- No published PSU length limit
- Costs more than the XR at the time of writing
Best Portable Case5 of 6
JONSBO Z20 on Amazon (opens in a new tab)
The Z20 is a 20-litre Micro-ATX box with a detachable handle and 2mm steel panels.
Best for
- LAN parties and small desks.
Skip if
- Choose another pick if you can't accept this: radiators top out at 240mm.
Why we like it
It takes a 363mm graphics card, a 163mm cooler and ATX, SFX or SFX-L power supplies. Its 363mm GPU clearance ranks fifth of 6 here, behind the D33 (435mm) and ahead of the B4-mATX (358mm). Its 163mm CPU cooler clearance ranks fourth of 5 here, behind the XR (175mm) and ahead of the O11 Vision-M (162mm).
On largest radiator size it trails the group at 240mm, while the XR comes in at 360mm. You get micro-ATX motherboards here, which sets it apart from the B4-mATX and its mATX motherboards. It also offers a 240mm top AIO up to 60mm thick.
GPU limit in the Z20: 363mm, before front fans. The Z20 takes 240mm radiators; mind RAM height. Its price falls between the B4-mATX and the D33, based on our last check. If largest radiator size is your priority, the XR (360mm) is the stronger choice.
Key dimensions & specs
- Max GPU length: 363mm
- Max CPU cooler height: 163mm
- Largest radiator: 240mm
- Volume: 20L
- Motherboards: Micro-ATX
- PSU type: ATX, SFX or SFX-L
- Front USB-C: Yes
Pros
- A compact 20L footprint
- A front USB-C port
- Detachable carrying handle
- 2mm bent steel panels
Cons
- Radiators top out at 240mm
- Largest radiator size trails the XR (360mm)
- No published PSU length limit
Smallest Case Here6 of 6
Lian Li B4-mATX (Mesh) on Amazon (opens in a new tab)
The B4-mATX is the smallest case here at 21.3 litres and still takes a 358mm graphics card.
Best for
- Compact mATX builds.
Skip if
- Choose another pick if you can't accept this: power supplies are limited to 140mm long.
Why we like it
Choosing an SFX power supply frees room for a 360mm AIO; an ATX unit must be 140mm or shorter. Its 358mm GPU clearance is the shortest in this group; the D33 leads at 435mm. On largest radiator size it ties with the XR, the Light Base 600 DX, the O11 Vision-M and the D33 at 360mm.
On PSU length limit it trails the group at 140mm, while the XR comes in at 230mm. MATX motherboards is unique to it among these picks, while the Z20 uses micro-ATX motherboards. It also offers two slim 120mm fans and a 360mm AIO when paired with an SFX PSU.
GPU limit in the B4-mATX: 358mm, before front fans. The B4-mATX takes 360mm radiators; mind RAM height. 140mm is the B4-mATX's PSU length cap.
Boards: mATX. On price it sat third of 6, between the cheaper O11 Vision-M and the pricier Z20, at the time of writing.
Key dimensions & specs
- Max GPU length: 358mm
- Largest radiator: 360mm
- Max PSU length: 140mm
- Volume: 21.3L
- Fans included: 2
- Motherboards: mATX
- PSU type: SFX, or ATX up to 140mm
Pros
- Fits a 360mm radiator
- A compact 21.3L footprint
- Two slim 120mm fans
- 360mm AIO when paired with an SFX PSU
Cons
- Power supplies are limited to 140mm long
- GPU clearance trails the D33 (435mm)
- No published CPU cooler clearance
How We Chose These Cases for RTX 5080
Each pick was assessed across 4 criteria weighted for real-world use.
- Build features
- We recorded front USB-C, glass panels and layout features such as dual chambers.
- Cooling layout
- We checked radiator sizes and positions, fan mounts and how many fans come in the box.
- Hardware fit
- We compared listed GPU length, CPU cooler height and power supply limits.
- Size
- We noted motherboard support and, where the maker states it, the case volume.
What to Look for in a Case for RTX 5080
Key buying criteria so you get the right fit the first time.
Check GPU length and thickness
Large graphics cards run past 330mm and take three or four slots. Compare your card with the case's GPU length figure, and note that front fans or a front radiator often cut it.
Vertical mounts need a riser cable and more width.
Confirm the power supply format
Most mid-towers take ATX power supplies, often with a length limit. Small cases may need SFX or SFX-L units, which cost more at the same wattage.
Match cooler height to the case
Every case offers a maximum CPU air cooler height. Tall dual-tower coolers need about 160mm to 170mm; small cases may take only a low-profile cooler or an AIO.
Plan radiator positions early
A case may list a 360mm radiator only at the front or only on top. Top mounts must clear the motherboard heatsinks and tall RAM, and front mounts can shorten the GPU limit.
Check motherboard size and connector layout
Mini-ITX, Micro-ATX and ATX boards need matching cases. Back-connect boards, which put their connectors on the rear, need a case with cutouts for them.
Mesh fronts and included fans
Mesh or perforated front panels breathe more easily than solid or glass fronts. Included fans save money; a case with none needs at least two or three before it is ready to use.
How to Choose a Case for RTX 5080
By priority
| Priority | Consider | Why |
|---|---|---|
| Any RTX 5080, including the longest | XR | 420mm of GPU room and a 230mm PSU limit |
| Glass showcase builds | Light Base 600 DX | 400mm of GPU room with dual radiator support |
| Compact showcase builds | O11 Vision-M | 410mm of GPU room in a dual-chamber mATX case |
| Maximum room for large cards | D33 | 435mm of listed GPU clearance |
| LAN parties and small desks | Z20 | 363mm of GPU room in 20 litres with a carry handle |
| Compact mATX builds | B4-mATX | 358mm of GPU room in 21.3 litres |
Scroll sideways to see every column.
Key specs side by side
Figures as each maker states them.
| Case | Max GPU length | Max CPU cooler height | Largest radiator | Max PSU length |
|---|---|---|---|---|
| XR | 420mm | 175mm | 360mm | 230mm |
| Light Base 600 DX | 400mm | 170mm | 360mm | Not listed |
| O11 Vision-M | 410mm | 162mm | 360mm | 182mm |
| D33 | 435mm | 172mm | 360mm | Not listed |
| Z20 | 363mm | 163mm | 240mm | Not listed |
| B4-mATX | 358mm | Not listed | 360mm | 140mm |
Scroll sideways to see every column.
By price at the time of writing
Prices change often; these tiers reflect Amazon prices when this guide was updated.
| Price tier | Cases |
|---|---|
| About $50 to $100 | XR, O11 Vision-M, B4-mATX, Z20 |
| About $100 to $150 | D33, Light Base 600 DX |
Frequently Asked Questions
Do I need a full tower?
Only for very large radiators, E-ATX boards, custom loops or many drives. A good mid-tower fits most gaming builds, including large graphics cards.
What is a back-connect case?
One with cutouts for motherboards that put their power and data connectors on the rear. It hides cables but needs a compatible board.
How many case fans do I need?
Two intakes and one exhaust suit most builds. Add more for a hot graphics card or when a radiator sits in an intake position.
Is a Mini-ITX build harder?
It takes more planning: check GPU length, cooler height and power supply format first, and expect tighter cable routing.
Will the front USB-C port work with any motherboard?
It needs a USB-C front-panel header on the motherboard. Most current mid-range boards have one; older or budget boards may not.
Does a glass front make a PC run hotter?
It can, when air has to enter through narrow gaps. Glass-front cases that take air from the side or bottom avoid most of that penalty.
Bottom Line
The Montech XR fits any RTX 5080 with room to spare and costs little. Pick the Light Base 600 DX for glass, the D33 for the most room, and the Z20 or B4 only after checking your card's length.