How AMD classifies the Ryzen 9 7945HX as a mobile chip is a mystery to me. The clue lies in the HX suffix: H stands for “High-Performance Mobile APU” and X for “Extreme”, which generally means higher clock speeds and higher power consumption than a regular Ryzen APU.
That means 16 cores, 32 execution threads and a maximum turbo clock speed of 5.4 GHz. AMD specifies 45-75 W for this little devil, but that is apparently not quite enough for Minisforum. In performance mode, the AtomMan G7 PT shovels a whopping 85 W into the 7945HX.
Does that make sense in a mini PC? With numbers like that, any self-respecting laptop maker would take flight and scream, “Kill the TDP! Kill it or WE’RE ALL DAMNED!” But the AtomMan G7 PT is a desktop machine, so portability isn’t a factor. It has its own external 300W power supply, there’s no battery to run out of power, and the chip is powered by Minisforum’s proprietary NASA-grade cooling to keep it running smoothly. So why the hell not, I guess?
Running in parallel is AMD’s Radeon RX 7600M XT, a discrete RDNA3 mobile GPU most commonly found in notebooks and portable eGPU boxes like the OneXGPU to improve frame rates. It has 2048 shader units, 32 CUs, a 128-bit aggregate memory bus, clocks up to 2600MHz, and comes with 8GB of dedicated GDDR6 VRAM. It’s a solid improvement over its predecessor, the RX 6600M, and a big jump over the Radeon 780M iGPU that many APU-powered micro machines rely on for gaming. However, it can’t quite keep up with the mobile RTX 4070 we see in other offerings in this branch of the discrete GPU-equipped mini PC family.
G7 PT Specifications
CPUs: AMD Ryzen 9 7945HX
Graphics card: Radeon RX 7600M XT
Memory: Up to 96GB DDR5 5200MHz SODIMM
Storage: 1x PCIe 5 port, 1x PCIe 4 port
Wireless: WiFi 7, Bluetooth 5.3
I/O: Front: 1x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C, 3.5 mm combo jack
I/O rear: 1x HDMI 2.0, 1x DisplayPort 2.0, 3x USB 3.2 Gen 2 Type-A, 1x USB 3.2 Gen 2 Type-C, 2.5G LAN, 3.5mm audio and microphone jacks
Price: $999 | £989 (excluding accessories)
From the outside, the AtomMan G7 PT is about the length and size of a couple of Steam Decks placed right next to each other. It comes with a vertical stand, which you should definitely use as the cooling fans are located under the side panels – if you lay it flat, it will almost certainly gasp. The stand itself is heavily magnetized, and the machine attaches to it with a firm and physically satisfying snap. In its natural tower orientation, the G7 PT’s desk footprint is very small.
Attached to the bottom of the right-hand bezel is a translucent film that sits over a pair of large square LEDs in the main body. This arrangement serves to illuminate the logo of Legend of Asaku, a popular Taiwanese entertainment brand, when the machine is powered on. Being unfamiliar with the series – and, if I’m honest, somewhat distracted by the constant color-changing – I was happy to find an LED switch in the BIOS.
It’s on or off though, there are no other LED customisation options which is a shame. The logo sheet is removable and I imagine you could submit its dimensions as well as an image of your choice to an online etching service and have them create your own panel artwork if you fancy it.
The rest of the spec sheet is great. It supports two M.2 drives (one PCIe 5 and one PCIe 4), is Wi-Fi7 and Bluetooth 5.3 compatible, and can accommodate up to 96GB of DDR5-5200 in SODIMM format. For video output on the back, you get HDMI 2.1, DisplayPort 2.0, and a USB 3.2 Gen2 Type-C socket that can also be used for charging and data transfer. Below that, there are three USB 3.2 Gen2 Type-A sockets, a 2.5G LAN port, and separate 3.5mm audio and microphone jacks. Up front, you get another USB-C, another USB 3.2 Type-A, a 3.5mm combo jack for audio, and a performance mode button that can be used to switch the 7945HX and its accompanying cooling solution between two TDP presets.
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In the default Balanced mode, the unit runs the CPU at a TDP of 65W. Tapping the button instantly changes this to 85W Performance mode, no reboot required. Of course, this comes at the cost of increased heat generation and fan activity. Basically, it goes from nearly silent at 65W to a bit windy – albeit without coil whine – at 85W. As with the AtomMan X7 Ti, Minisforum’s Cold Wave phase change cooling technology once again proves its worth by keeping fan noise to a minimum while completely taming the heat generation of a high TDP mobile chip. During our Cinebench multicore test, the 16-core 7945HX cooled to 69°C at 65W. Increasing the TDP to 85W pushed the temperature up to just 83°C.
But what does the extra 20W get you in terms of performance? In terms of gaming, very little actually, as our benchmarks show. For titles that rely more on the CPU, frame rates will increase – in the case of Homeworld 3, this is notable – but for the vast majority of games, there’s no difference at all between the two modes. With so much CPU power available even at 65W, frame rates when gaming are almost entirely dependent on the GPU, so we recommend leaving Balanced mode for gaming. It’s so quiet you’ll forget it’s even there.
For CPU-intensive productivity workloads, the 85W is the best. On Cinebench and Blender, the 7945HX beats every other APU-driven mini PC we’ve tested—even those with processors like the Ryzen 9 8945HS and Intel Core Ultra 9 185H—by a mile. It even beats my desktop Ryzen 9 7900, for goodness sake. That makes it a great machine for video rendering and other similarly intensive tasks.
So gaming largely comes down to the RX 7600M XT – a tiny GPU that shines at 1080p and can hold its own at 1440p, provided you’re willing to compromise on some of the detail settings. The benchmarks you see in the tables here don’t really tell the whole story, though. To provide a solid comparison with other mini PCs we’ve tested, our standard 1440p tests are all run using each game’s Ultra preset, and that’s not the G7 PT’s strong suit.
Let’s use A Plague Tale: Requiem as a test case. At 1440p and ultra settings, the G7 PT manages an average of 51 fps, with 1% lows of 40 fps. Not bad, of course, but if you set the preset to high, it averages a golden 60 fps. Drop the resolution to 1080p at ultra settings and you get a much healthier average of 76 fps, with 1% lows of 59 fps. It’s a similar story for other titles, and there’s definitely a lot of money to be made from tuning individual settings to a 1440p baseline.
Where the RX 7600M XT really struggles is ray tracing. Doom Eternal set to 1440p, with the details on Ultra Nightmare and RT turned on, hits 46fps with 1% lows of 23fps, which isn’t a great experience. Turning off ray tracing and keeping all other settings the same brings it to 103fps, with the worst dip coming in at 66fps. If you drop the resolution to 1080, stick with the Ultra Nightmare settings and leave RT turned off, you’ll enjoy 172fps with 1% lows of 73fps.
It’s the same with Forza Motorsport, but in this case the demands are compounded by Forza’s VRAM thirst. Set the game to 1440p Ultra with RT on and you’ll get a “VRAM over budget” warning, resulting in an average of 38fps with 1% lows of 26. Ugh. Even on Ultra without RT, you’re still over budget. However, stay at 1440p, reduce the settings to medium and disable ray tracing and the warning goes away and you jump to 80fps with the worst dip at 68fps, which is absolutely smooth and still looks great.
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Buy if…
✅ You demand performance: The Ryzen 9 7945HX is a high-end beast that will take down the desktop.
✅You are happy with 1080P: The Radeon RX 7600M XT shines at Full HD.
Do not buy if…
❌ You want an upgrade path: The CPU and GPU are soldered and not replaceable.
❌ You want an effortless setup: The G7 PT comes barebones, so bring your own RAM, M.2 storage, and Windows license.
This makes the AtomMan G7 PT a sort of mid-range machine in its own right. It’s significantly more powerful than smaller mini PCs that rely on an iGPU for gaming, but doesn’t quite match the 1440p performance of mini PCs with the mobile RTX 4070, namely the Zotac Zbox Magnus and ASUS ROG NUC. The RTX 4070 is a better ray tracer, opens the door to Nvidia’s Frame Gen feature, and generally delivers faster frame rates across the board. It’s better geared towards 1440p and requires less sacrifice in detail at that resolution.
However, such machines are correspondingly much more expensive, and this is where the G7 PT has carved out a niche for itself. In the barebones version, it costs just under $1,000 – almost half the price of the ASUS ROG NUC – and that’s very attractive. However, you should also factor in about $150 extra for 32GB of 5200MHz DDR5, a 1TB M.2 drive, and a Windows 11 key.
So what does this all mean for us? To sum it up, the AtomMan G7 PT eats up CPU-heavy tasks like a breeze and offers jaw-dropping 1080p gaming performance. Gaming at 1440p is by no means impossible, but you’ll need to find the sweet spot by tweaking individual game settings.
It earns extra points for running cool and whisper quiet even under heavy loads, and for being reasonably priced. There are mini PCs that charge a similar price for less CPU power and rely on an iGPU with shared system memory rather than a discrete GPU with 8GB of dedicated VRAM. With that in mind, the AtomMan G7 PT is easy to recommend.
