When speed matters more than absolutely everything else.
How much do you really, truly care about latency and motion fluidity? The AOC Agon Pro AG276FK is hoping it’s a lot. Because this 520 Hz gaming monitor costs plenty, but it only gives you 1080p resolution.
US pricing has yet to emerge. But the AOC Agon Pro AG276FK is about £500 in the UK, implying a likely sticker of around $550. If so, it’ll be priced right next to the likes of the ASRock Phantom Gaming PG27FFX2A, which is a dead ringer by most specification metrics.
What we’re dealing with here is a 27-inch 1080p IPS gaming monitor that’s being sold unambiguously on speed. Along with the nosebleed-inducing 520 Hz refresh rate, AOC rates this monitor’s pixel response at 0.5 ms GTG and an eye-popping 0.3 ms for MPRT. That is awfully quick.
Such figures rarely if ever map well to reality. But they’re useful as comparators and AOC is certainly positioning this monitor as being one of the fastest IPS panels out there. Of course, fast for an IPS is nothing for an OLED monitor, pretty much all of which are rated at 0.03 ms, an order of magnitude quicker on paper. But then good luck finding a 520 Hz OLED monitor for 500 bucks. They barely exist at any price.
Screen size: 27-inch
Resolution: 1,920 x 1,080
Brightness: 400 nits full screen
Response time: 0.3 ms MPRT, 0.5 ms GTG
Refresh rate: 520 Hz
HDR: HDR400
Features: IPS panel, HDMI 2.0 x2, DisplayPort 1.4 x2
Price: $550 (estimated) | £499
Elsewhere, AOC says this monitor is good for 400 nits and has HDR400 certification. To be clear, this is not a true HDR panel. There’s no local dimming and it’s not capable of high dynamic range rendering. But it will decode an HDR signal correctly. That’s just about better than nothing, especially given HDR sizzle really isn’t what this monitor is about.
Apart from the towering refresh rate, this AOC justifies its price point with a well built, all-alloy stand that offers a full range of adjustment including height, tilt, pivot and swivel. Design wise, AOC has gone for a quirky asymmetric vibe, slim bezels on three sides of the 27-inch IPS panel, a smattering of RGB lighting, plus a slide-out headphone hanger on the right-hand bezel.
For connectivity there are two DisplayPort 1.4 connections capable of the maximum 520 Hz refresh rate. Admittedly, the pair of HDMI 2.0 sockets are only good for 240 Hz, but they’re primarily there for console connectivity which only requires 120 Hz.
Rounding out the core features are a comprehensive OSD menu that includes overdrive controls and low latency modes, plus AOC’s GMENU app that provides access to much of the OSD functionality within Windows.
Ultimately, there’s nothing too exotic about this monitor on paper bar the refresh rate and response. So, the question is just how fast does it feel? Oh, and just how bad does 1080p look on a relatively large 27-inch panel?
To address that second point, the pixel density works out to just 82 DPI. This week, I’ve also been playing with one of the new breed of 4K 27-inch OLED panels. It offers in excess of twice that DPI figure. And, boy, you really can see the difference. On the Windows desktop, fonts look awfully craggy and the whole panel has a pretty pixelated look.
For sure, it’s not as sharp as a 1440p 27-inch monitor, let alone 4K.
Actually in-game, however, it’s not that bad. For sure, it’s not as sharp as a 1440p 27-inch monitor, let alone 4K. But the detail level is tolerable. And, of course, the lower resolution means you’ve much more chance of hitting that 520 Hz refresh rate in terms of actual frame rates.
Well, much more chance in some games and with some GPUs. Ultimately, this is a display designed for esports, for online shooters. So, you can hit 520 fps-plus in something like Counter-Strike 2. But you’re not going to see frame rates like that in, say, Cyberpunk 2077 with ray tracing enabled, probably not even with a really high-end Nvidia GPU.
Speaking of Nvidia GPUs, the new RTX 50 series with its Multi Frame Generation tech will certainly help boost frame rates in some games up bearer this monitor’s refresh rate. The problem is, while you’ll get the motion fluidity, you won’t get the other important benefit of 520 Hz refresh, namely low latency.
If you can get your favourite shooter running up around 500 Hz, the sense of immediate response is very sweet.
Latency is totally dependent on fully rendering frames in the 3D pipeline, not guesstimating them with AI trickery. So, to get the full benefit of the AOC Agon Pro AG276FK, Frame Gen isn’t going to help.
Anyway, if you can get your favourite shooter running up around 500 Hz, the sense of immediate response is very sweet. I tend to find the returns diminish above 240 Hz or so. But really competitive esports players will definitely appreciate just how instant this panel feels in terms of response to inputs. It’s pretty electric.
The other factor in a sense of speed is obviously pixel response. Here, qualifiers are needed. For an LCD monitor, this thing is seriously quick. There are four levels of pixel overdrive available in the aforementioned OSD menu. Happily, the fastest mode is actually usable.
That’s not always the case. With a lot of gaming panels you’ll find the max overdrive mode is a mess of overshoot and inverse ghosting. Here, a whiff of overshoot is evident when you wiggle an app window around on the Windows desktop. But actually in-game, it’s barely visible. Certainly, there’s little to no motion color shift, something that can be pretty distracting.
So, this AOC is about as quick as current LCD technology gets. What it’s not is as quick as an OLED. Of course, even the cheapest OLEDs are about $100 more expensive and won’t get near 240 Hz. So, to some extent you have to decide where your preferences lie. Personally, I prefer the overall compromise of a 240 Hz 1440p panel. But then I’m not a really serious esports aficionado. The days when I was actually any good at Counter-Strike are sadly long behind me.
Speed aside, this is a very nicely calibrated monitor in sRGB SDR mode. It looks punchy and vibrant, the colors are accurate, it’s just a very nice thing bar that blocky pixel density. The HDR mode is well setup, too, including nicely executed mapping of SDR tones. So, if you want you could leave this monitor in HDR mode all the time and get great image quality for all content types.
✅ You want high refresh above all else: If sky-high refresh and ultra-low latency are your thing, this AOC absolutely delivers.
❌ You want a great all-round computing experience: 1080p on a 27-inch panel is not a recipe for crispy fonts or even great visuals in most games.
Personally, I wouldn’t bother with HDR at all. That’s because, as mentioned, this isn’t a true HDR monitor and where both SDR and HDR versions of any given content are available, there’s little benefit in choosing the latter.
All told, then, I feel pretty well disposed toward the AOC Agon Pro AG276FK despite it not being my kind of monitor. I’m not majorly into esports these days, so 240 Hz or thereabouts is plenty for the vast majority of my gaming, and I’d much, much prefer something with better pixel density.
But that’s my remit and not necessarily yours. If yours does indeed major on sky-high refresh and ultra-low latency, this AOC definitely delivers and does so with excellent image quality given the limitations of this panel type. It’s not for me, this AOC. But if you’re seriously into esports and you don’t care about general Windows performance, it might just be for you.
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