OcUK Pinnacle X580WNT-G gaming laptop review: incredibly fast, heavy, and customisable

Table of Contents
The Pinnacle X580WNT-G is the latest high-powered gaming laptop from the team at OcUK, tailored towards gamers, streamers, creators, and enthusiasts looking for a powerful mobile device. While the model we tested came equipped with Nvidia’s latest RTX 5090, OcUK offers up a whole host of exciting configurations, all of which showcase Nvidia’s 50-series Mobile graphics and Intel’s processing power.
In today’s review, we’ll be putting the Pinnacle X580WNT-G through its paces to see how it stacks up in gaming, workflows, and general use, testing all the features that affect most use cases. We’ll be putting the speedy 200Hz LCD panel to the test for color accuracy, viewing angles, and picture quality, while also discussing upgrability, peak brightness, and general design features. So, let’s get hands-on with the latest Pinnacle X580WNT-G and see how it stacks up.
- CPU: Intel Ultra Core 9 275HX
- GPU: NVIDIA GeForce RTX 5090/RTX 5080/RTX 5070 Ti
- RAM: 32/48/64/96/128/192GB DDR5
- Storage: 1-32TB NVMe SSD (4 slots)
- Max Refresh Rate: 200/240Hz
- Resolution: 3840×2400
- Screen Size: 18-inch
- Panel Type: LCD
- Touchscreen?: No
- Weight: 3.6kg (7.94lbs)
- Ports: 2x RJ45, 2x USB-C (Thunderbolt 5 w/PD DC & Thunderbolt 5), 2x USB-A 3.2 Gen2, 1x HDMI, Micro SD, 1x 3.5mm
An impressive bit of hardware, the Pinnacle X580WNT-G has everything you might need in a gaming laptop. Providing you with a machine that can run anything you might want, from games, streams, or any other hard computational work. Although putting all those powerful components inside a mobile system does give it an incredibly massive build and weight, don’t expect to do much carrying of it. But Overclocker’s gives you plenty of options to choose from to customise and fit the system to your needs for a surprisingly good value.
- Powerful CPU and GPU, resulting in top performance
- Plenty of customisation choices in building the laptop
- Strong build quality and easy access to upgradeability
- Impressive thermal performance and power balances
- Great colour gamut coverage and accuracy
- Very heavy and not easy to move around
- Large in size, with the keyboard rather far away
- It can get very loud and obnoxious
Pricing and availability
The pricing ranges quite significantly depending on your configuration, but the basic pricing straight from the store starts at £2,299.99 for the RTX 5070 Ti, 32GB RAM, 240Hz QHD+ screen, and 2TB storage model. While the top model available spikes up to a whopping £3,699.95 for the RTX 5090, 96GB RAM, 4K 200Hz, 4TB memory model.
That’s not the most expensive option you can get, though. You can configure the top model beyond the highest spec available from the store. The review model I got sent is even higher specced, and replicating that in the configurator brings it up to £5,985.95, and even that’s not the full amount you can get. Upgrading the RAM and storage to higher models brings it up to £6,645.71. However, I hardly see many people needing all of that memory and storage, and you’re likely after something a bit more reasonably priced.
In comparison, other RTX 5090 laptops are not that different in pricing from the competition. Some of the cheapest options available include the Acer Predator Helios 16 at £3,799.99, which does, in fact, offer an improved OLED screen (16-inch, though) compared to the Pinnacle model. It has the same basic RAM and storage options, but asks more for the advanced display. Similarly, the Razer Blade 16 brings a 16-inch OLED screen and 32GB of RAM with 2TB of storage. A similar 18-inch laptop is the MSI Stealth 18 with 64GB of RAM and a Mini LED 120Hz display costing £4,499.99.
Overall design
It’s safe to say that this is one of the largest laptops we’ve tested in some time, and one of the heaviest, too. It features a fairly simple design that leans more towards a stylish aesthetic, unlike some of the louder gaming laptops you’ll find in today’s market. That said, OcUK has given it a small RGB light strip above the exhaust fans that adds a gaming element to the design. This contrasts nicely with the back and adds some edginess and shape to the otherwise rather standard rectangular laptop.
As for the quality, it’s a very robust build for any laptop. It has a metal shell that adds some plastic highlights throughout. Yet it doesn’t compromise on anything through it, as typing on the keyboard keeps it sturdy beneath your fingertips without flexing, and neither does the front palm rest. Even the screen can be lifted with just a thumb and remains sturdy, even if it gets the occasional wobble and has some bending if you start twisting it.
As far as access goes, the Pinnacle X580WNT-G offers a fairly simple solution that is great for anyone looking to customize their configuration down the road. As the panel keeping it closed, with 14 screws the light cover that’s mostly vents comes off easily when you pry it open. Unveiling a quite easy-to-access and upgradeable option at any point. With four M.2 NVMe SSD slots and four accessible SODIMM DDR5 RAM slots, there is plenty of upgradeability on offer down the line, even when you get a lower configuration to start off with.
It also shows why one of the first things you notice is the laptop’s heft. The entire device has a vast cooling network of pipes and fans at the top, with a battery spanning the bottom. Along with filling in the gaps with the supporting components and parts, it has a lot to offer in the 18-inch behemoth of a laptop. With a weight of around 3.6kg (7.94lbs) and dimensions 402x320x28mm, it takes quite a bit to take around with you.
When it comes to the actual core hardware of the laptop, the RTX 5090 is rated for up to a 175W power rating, with the 275HX ranging between 55 and 160W. With that in mind, this laptop comes with a power brick rated for 330W, providing nearly enough juice to power both components to near maximum (it’s 5W short of the max for both). That said, it certainly allows for a significant bit of power to give both components their best available chance, as both are unlikely to run at max at the same time, especially as the cooling capacity is rated for 245W maximum.
Being an 18-inch laptop, it does feature a full-size keyboard and a rather sizeable touchpad. It is a simply designed keyboard, but it has an excellent feel to it. Immediately being able to write pretty fast on and with a good feel. The keypad has a very smooth surface and is very easy to use across the board. It is rather far forward, though, and you have most of your forearm resting on the surface, which may not always be the most comfortable to use.
When it comes to the speakers, it implements a decent setup. Offering up two 2W speakers and a 2W subwoofer, it does manage to produce decent volume levels, while avoiding any tininess and that echoey sound some audio systems have. But it still lacks that depth and bass in general; it’s all a bit bland, as you can expect from laptop speakers. It provides clear speech and vocals, but nothing too in-depth.
Screen
Now for the screen, the Pinnacle has an 18-inch size (diagonally) that utilises the 16:10 aspect ratio, resulting in the slightly larger 3840×2400 resolution. Providing a very vast screen space for a range of tasks, from gaming to content creation and consuming various media. Ultimately, the increased space helps deliver a viewing experience that suits almost any task you require.
Sadly, OcUK has opted for an LCD panel for this particular laptop, meaning it won’t be quite as rich or vibrant as some of the other OLED or Mini LED options out there. That said, the LCD panel does allow it to bring higher refresh rates, in this case, 200Hz for the 4K resolution. Overclockers claims this laptop provides 100% sRGB colour accuracy, which would make it great for anyone looking to do color-accurate work – if true. Of course, we’ll be testing that, alongside other picture quality and color features below.
As you can see from the test data above, the Pinnacle X580WNT-G provided the 100% sRGB coverage being claimed. Furthermore, the laptop also offered 100% DCI-P3 and 89% AdobeRGB coverage, making it a great laptop for creators.
Along with that, I got the colour accuracy ratings in the same tests, bringing an average ΔE of 1.53, which is pretty impressive for a laptop right out of the box.
Below are the results of checking how bright the screen is capable of getting to, the contrast, and the black and white points.
This goes above what Overclockers suggest the panel could reach, as at 100% brightness, it goes above 509 nits(cd/m²) compared to the 400 on the spec sheet. Along with a black point of 0.39/m² a contrast of 1320:1, a white point of 7400K, and a gamma of 2.4 at 100% brightness.
The ideal value for these specs are: 6500K white, 0/m² black point, infinity:1 contrast, and a 2.2 gamma. That means the display is fairly accurate, if not, the white point is rather far off with the higher brightness.
Battery life
To test the laptop’s battery life, I ran our standard “YouTube” test. I started with a continuous two-hour YouTube video playback, with the remainder of the time spent browsing documents and the web. I used the quietest mode and the battery saver on, as well as turning off all the RGB and extra lighting, to prolong it for long work hours.
In this scenario, the battery from 100% dropped down to 60% just after two hours of video playback. The rest of the battery takes another four hours to discharge. That gives it a total of around 6 hours of battery life in our test, which you can prolong without as much video playback. But it’s also not too shabby, considering it has some very power-hungry components onboard and isn’t made for long-term low-power options.
Software
There is a Control Centre that comes pre-installed with the laptop. Offering up a rather intricate control of how your laptop functions and what you make it do.
It is quite a decently built control software, with a lot of information and changes to utilise. Such as the start showing off the CPU clock speed and the temperature it’s running at, along with the graphics cores’ power and performance. Leading to seeing the fan speeds that require to keep it under wraps.
This is where you can also set the fan and power behaviours, with a choice between optimal performance at its best, slightly quieter entertainment choice, or absolute quiet, with limited performance. It also provides quick access to settings for the different locks, aeroplane mode, touchpad and more, which puts it in a convenient place. It also features the MUX GPU switch so you can choose between running on discrete or integrated graphics, or dynamic and letting the laptop choose.
The next tab over, you can find the control for all the lighting machines. Being able to set up a whole range of options, including per-key RGB, the brightness, speed, and which mode it runs. Giving a decent amount of control as to the customisation for a bit of personalisation.
Another tab gives you access to macros and setting up the flexi key to give you another layer of control, and setting up some handy shortcuts. Lastly, there is the Flexicharger tab, here you can set the battery behaviour and if you want to preserve its performance and only charge up to 80% or customise it to whatever levels you want.
Performance and noise levels
I also put the laptop to the test via various benchmarks of both gaming and synthetic to test a range of options and capabilities. Putting it in the best performance mode while plugged in to make sure it had all the power at its disposal. First, choose the performance mode option and use the discrete 5090 GPU where it matters.
Benchmarks
Firstly, looking at the benchmarks, we get a look at one aspect of what it is capable of. Considering it has a powerful set of components and runs at 4K, it can be difficult to run at the highest framerates, and even the best settings still. Below are the results of the range of tests.
Starting off with gaming benchmarks, Cyberpunk is particularly punishing at ultra settings. There, we see the game average around 47fps, while running DLSS on auto and utilising DLSS 4, which jumps up to 114fps instead, making it a much more playable solution. While turning on ray tracing drops it to only 21fps, which benefits from enabling DLSS as it jumps to over 60fps, at a stunning 4K, it makes it look rather impressive and at a playable framerate. But of course, you can easily dial it down to improve that more.
As for Doom Eternal, that is a lot more forgiving and easy to run. Even with 4K on Ultra Nightmare, it runs up to 179fps, as even with ray tracing, that falls down to 129fps. That’s even without utilising DLSS and getting an improved performance to further boost its framerate.
As for 3DMark and the scores it can achieve, the laptop does incredibly well across the board. Reaching nearly 16,000 in the Port Royal benchmark with 14,100 in Fire Strike Ultra and so on, and that’s rather impressive for the job. Similarly, in Blender, where the CPU is not that effective, the graphics card skyrockets in its ability to render the scenes with over 3,800 samples per minute in monster and around 2,000 for junkshop and classroom.
I also ran both Geekbench 6 and Geekbench AI to find their abilities in those situations. In the standard Geekbench, the CPU achieved a single score of around 2,900 and a multi-core score of 17,000. As for the GPU, that jumps up to over 240,000 in OpenCL while Vulkan is only capable of achieving 19,617.
Thermals
I also put it under load using Furmark and tracking the clock and temperature using HWInfo. Being able to see the power, temperatures and clocks the CPU and GPU achieve to measure how well they work together under full loads of CPU shark and GPU fuzzy rendering.
Initially, the CPU jumps up to around 150W, but as the GPU gets prioritised and that holds to 175W, the CPU falls down to around 80 and then 60W. That is down to the clock rate having to be lowered to preserve the temperature and life span of the components. The 275HX peaks at nearly 4,000MHz and falls slowly to 2,800MHz, while the 5090 averages out at 1,500MHz over time.
As for the temperatures, both the CPU and GPU plateau at roughly the same temperature after around 5 minutes under full load. That is around 83°C, as it controls the clocks and fan RPM to keep the components sturdy and working as they should.
That doesn’t come quietly, though; it is like a jet taking off under this load, but that is while being pushed to the limits. Although when playing games, less so, it still can get rather loud, but controlling the behaviour of the fans makes it more tolerable.
- CPU: Intel Ultra Core 9 275HX
- GPU: NVIDIA GeForce RTX 5090/RTX 5080/RTX 5070 Ti
- RAM: 32/48/64/96/128/192GB DDR5
- Storage: 1-32TB NVMe SSD (4 slots)
- Max Refresh Rate: 200/240Hz
- Resolution: 3840×2400
- Screen Size: 18-inch
- Panel Type: LCD
- Touchscreen?: No
- Weight: 3.6kg (7.94lbs)
- Ports: 2x RJ45, 2x USB-C (Thunderbolt 5 w/PD DC & Thunderbolt 5), 2x USB-A 3.2 Gen2, 1x HDMI, Micro SD, 1x 3.5mm
Conclusion
Overall, the Overclockers Pinnacle X580WNT-G gaming laptop is an impressive bit of kit, if you have the money for it. Bringing about some top-tier hardware in a mobile form factor, there is an extensive bit of customisation you can change on it when buying it. Apart from the processor, there are a few graphics cards, RAM, and storage options on offer that make it a desirable choice.
Overall, what you have here is an incredibly versatile laptop that delivers excellent upgrade options, power, and style, making it one of the best gaming laptops we’ve tested this year. However, it doesn’t come very lightly; weighing in rather heavily doesn’t make it the most portable option, nor does the size, as the 18-inch model is rather cumbersome. Still, there are plenty of available configurations that make it a surprisingly good value for the most part. That is, if you’re after some powerful hardware for the full suite of tasks it can handle.