Best PC Cases for 51RISC GeForce GTX 1660 Super Graphics Card, 6GB GDDR6 Gaming PC GPU 192bit Video Card PCIe 3.0 x16 DP HDMI DVI Display 1660S Game Cards

Finding the best pc cases for 51risc geforce gtx 1660 super graphics card 6gb gddr6 gaming pc gpu 192bit video card pcie 3 0 x16 dp hdmi dvi display 1660s game cards is more straightforward than you might think. The GTX 1660 Super is a compact, dual-slot card that fits comfortably in almost any mid-tower. But not every case delivers the airflow, build quality, or cable management to do it justice. We compared eight of the most popular UK options so you can pick the right home for your GPU without the guesswork.

Compatibility Guide: Best Pc Cases for 51risc Geforce Gtx 1660 Super Graphics Card 6gb Gddr6 Gaming Pc Gpu 192bit Video Card Pcie 3 0 X16 Dp Hdmi Dvi Display 1660s Game Cards

Before you order a case, it's worth understanding exactly what the 51RISC GTX 1660 Super needs from its enclosure. The card connects via a PCIe 3.0 x16 slot, which every ATX and micro-ATX motherboard has. So the slot itself is never the issue. What you need to check is physical space inside the case.

GPU length clearance is the big one. The 51RISC GTX 1660 Super sits at roughly 229mm to 240mm depending on the cooler shroud. All eight cases here offer at least 360mm of clearance, which means you're fine with a huge amount of headroom. That said, if you ever plan to upgrade to a longer card, that clearance matters a lot more.

GPU thickness is the other factor. The 1660 Super is a dual-slot card, occupying two expansion slots at the back of the case. Triple-slot and 3.5-slot cards are more common with higher-end GPUs. You won't have any slot-blocking issues here.

How to measure GPU clearance in your case: Open the side panel and measure from the inside face of the motherboard tray to the front of the case (or the front fan/radiator mount, whichever is closer). That number is your maximum GPU length. The 51RISC 1660 Super needs at least 250mm, so any figure above that is sorted.

Form factors explained: ATX is the standard full-size motherboard at 305mm x 244mm. Micro-ATX is smaller at 244mm x 244mm. Mini-ITX is the compact option at 170mm x 170mm. All cases in this guide support ATX as a minimum. Some also fit E-ATX boards. If you're building on a micro-ATX or Mini-ITX board, you can still use these cases, you'll just have more room inside.

One more thing worth checking: the GPU power connector. The 51RISC 1660 Super uses a single 8-pin PCIe power cable. Make sure your PSU has one spare. A 550W unit is comfortable for a full build with this card. You can read more about GPU performance data for the 1660 Super over at TechPowerUp's GTX 1660 Super GPU specs page, and Fractal Design's full case lineup is documented on the Fractal Design official cases page.

Who Should Buy What

Fractal Design North Charcoal Black - Wood Walnut front - Mesh side panels - Two 140mm Aspect PWM fans included - Type C USB - ATX Airflow Mid Tower PC Gaming Case - Best Overall

The Fractal Design North Charcoal Black is a genuinely distinctive case. That walnut wood front panel isn't just for show. It gives the build a warm, natural look that stands apart from the usual black-plastic-and-RGB crowd. Underneath the style, though, it's properly well-engineered. Dual mesh side panels pull air straight through the chassis, two 140mm Aspect PWM fans come included, and there's a front USB-C port for modern peripherals. GPU clearance is generous, and the 51RISC GTX 1660 Super sits inside without touching anything. See our full Fractal Design North Charcoal Black review for more detail.

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Fractal Design North Chalk White - Wood Oak front - Mesh side panels - Two 140mm Aspect PWM fans included - Type C USB - ATX Airflow Mid Tower PC Gaming Case - Premium Pick

If the charcoal version suits dark setups, the Chalk White with Oak front is the one for bright, minimal builds. It's the same excellent North chassis underneath, so you get identical airflow performance from the dual mesh panels and the same pair of 140mm Aspect PWM fans. The oak wood front gives it a slightly lighter, more Scandinavian feel. Build quality is top-notch throughout, cable management is well thought out, and the front USB-C is a nice touch. The 51RISC 1660 Super fits with room to spare. Check out our Fractal Design North Chalk White review for the full breakdown.

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NZXT H9 Flow Dual-Chamber ATX Mid-Tower PC Gaming Case CM-H91FW-01 - High-Airflow Perforated Top Panel Tempered Glass Front & Side Panels 360mm Radiator Support Cable Management White - Runner Up

The NZXT H9 Flow is a dual-chamber design, which means the PSU and cable clutter live in a separate compartment behind the motherboard tray. The result is a remarkably clean interior. Tempered glass on both the front and side panels gives you a full view of your build, and the perforated top panel pushes hot air out efficiently. It supports 360mm radiators, so there's plenty of cooling headroom beyond what the 1660 Super demands. Owner reviews consistently highlight how tidy the finished build looks. Read our NZXT H9 Flow White review for more.

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NZXT H9 Flow (2025), Large Dual-Chamber ATX Mid-Tower Airflow PC Case, Includes 3 x 140mm & 1 x 120mm Fans, 420mm Radiator Support, Tempered Glass, Back-Connect Ready, Black - Best Value

The 2025 refresh of the H9 Flow is a serious upgrade over its predecessor. You get three 140mm fans and a 120mm fan straight out of the box, plus 420mm radiator support if you ever want to go all-in on liquid cooling. The back-connect ready design is a forward-thinking feature that suits newer motherboards with rear-routed power connectors. Tempered glass panels let you see the whole build, and the dual-chamber layout keeps everything looking tidy. For a GTX 1660 Super build, this is arguably more case than you need. But the value per pound is genuinely strong. See our NZXT H9 Flow 2025 Black review.

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Fractal Design North Charcoal Black Tempered Glass Dark - Wood Walnut front - Glass side panel - Two 140mm Aspect PWM fans included - Type C USB - ATX Airflow Mid Tower PC Gaming Case

This is the tempered glass version of the North Charcoal Black, and it's a proper looker. You swap one mesh side panel for a dark-tinted tempered glass panel, which gives you a view of the internals while keeping the moody, understated aesthetic. The walnut wood front remains, two 140mm Aspect PWM fans are still included, and airflow is still respectable despite losing one mesh panel. If you want to see your 1660 Super without going full RGB-showboat, this is a well-balanced compromise. Our Fractal Design North TG Dark review covers the full picture.

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NZXT H9 Flow RGB (2025), Large Dual-Chamber ATX Mid-Tower Airflow PC Case, Includes 1 x 420mm RGB Fan Unit & 1 x 120mm Fan, 420mm Radiator Support, Tempered Glass, Back-Connect Ready, White

The RGB version of the 2025 H9 Flow swaps the standard fans for a 420mm RGB fan unit, which is a genuinely impressive centrepiece for a white build. The lighting output from a single 420mm unit is softer and more diffused than a cluster of smaller fans, giving a clean glow rather than a chaotic light show. It's back-connect ready, supports 420mm radiators, and the white finish with tempered glass panels looks crisp. Paired with the 51RISC 1660 Super, it's a solid aesthetic choice. See our NZXT H9 Flow RGB 2025 White review.

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Lian Li O11 Vision Compact ATX Mid-Tower Gaming PC Case - Aluminium & Tempered Glass White PC Case

Lian Li's O11 Vision Compact is a proper premium option. The aluminium and tempered glass construction feels genuinely solid, and the compact footprint is a nice bonus if desk space is tight. It's still a full ATX mid-tower, so the 51RISC 1660 Super drops in without any clearance concerns. The triple-glass panel design gives you a panoramic view of your components from multiple angles, which is rare at this size. Owner reviews note the build quality is noticeably above average. No fans are included, so budget for those separately. Full details in our Lian Li O11 Vision Compact review.

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NZXT H6 Flow RGB | CC-H61FB-R1 | Compact Dual-Chamber Mid-Tower Airflow Case | Includes 3 x 120mm RGB Fans | Panoramic Glass Panels | High-Performance Airflow Panels | Cable Management | Black - Best Budget

The H6 Flow RGB is NZXT's compact dual-chamber option, and it punches well above its price. Three 120mm RGB fans come included, the panoramic glass panels look excellent, and the dual-chamber layout keeps cables out of sight. It's smaller than the H9, which suits tighter spaces without sacrificing ATX compatibility. Airflow is strong through the dedicated intake panels, and the 51RISC 1660 Super fits with ease. If you're building on a tighter budget and still want that clean NZXT aesthetic with RGB included, this is the one to go for. See our NZXT H6 Flow RGB Black review.

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Understanding GPU Clearance and Case Compatibility

GPU clearance sounds technical, but it's really just one measurement. Open the side panel of your case, look at the space between the front of the case (or the front fan mount) and the inside face of the motherboard tray. That gap is how long your graphics card can be. The 51RISC GTX 1660 Super is around 229mm to 240mm long, so any case with 300mm or more of clearance is sorted.

Here's the thing: most modern mid-towers list clearance of 360mm to 420mm. That's designed for high-end cards like the RTX 4090, which can reach 336mm. So for a 1660 Super, you're working with a card that's well within the comfort zone of any case in this guide.

Slot thickness matters too. A dual-slot card like the 1660 Super uses two expansion slots at the rear of the case. Triple-slot cards block the slot below them, which can be a problem if you're adding a capture card or sound card. With the 1660 Super, you won't have that issue.

Cooling is where case choice actually makes a real difference for this GPU. The 1660 Super runs warm under sustained load but not hot. A mesh-front case with good intake fans keeps temperatures stable and prevents thermal throttling. Cases with solid front panels restrict airflow and push temperatures up by 5 to 10 degrees Celsius in some configurations, according to independent testing published by outlets like TechPowerUp. That's not catastrophic for a 1660 Super, but it's worth avoiding if you can.

Finally, check that your case has a PCIe slot at the correct height for your motherboard. All ATX cases here have standard PCIe slot positions that line up with ATX and micro-ATX boards. Mini-ITX boards use a different slot position and need an ITX-specific case.