AMD Radeon RX 6600 XT Review: MSI GAMING X Tested

Manufacturer: MSI AMD Radeon RX 6600 XT Review: MSI GAMING X Tested

AMD’s Latest GPU Targets High FPS 1080p Gaming

It’s here: the era of the nearly $400 1080p graphics card. Are you excited? Ok, cheeky intro aside, we have a new RDNA 2 graphics card to add to the product stack, with the Radeon RX 6600 XT officially launching tomorrow. Availability will undoubtedly be one of the most talked about aspects of the launch early on, along with the $379 starting price, but I’m interested in that whole performance thing, too.

Here is a basic rundown of specs from the members of the RDNA 2 desktop graphics family:

AMD Radeon RX 6600 XT AMD Radeon RX 6700 XT AMD Radeon RX 6800 AMD Radeon RX 6800 XT AMD Radeon RX 6900 XT
Compute Units 32 40 60 72 80
Memory Interface 128 bit 192 bit 256 bit 256 bit 256 bit
Game Clock 2359 MHz 2424 MHz 1815 MHz 2015 MHz 2015 MHz
Boost Clock Up to 2589 MHz Up to 2581 MHz Up to 2105 MHz Up to 2250 MHz Up to 2250 MHz
Infinity Cache 32 MB 96 MB 128 MB 128 MB 128 MB
Total Board Power 160W 230W 250W 300W 300W
Launch Price $379 $479 $579 $649 $999
Launch Date 8/11/2021 3/18/2021 11/18/2020 11/18/2020 12/8/2020

The GPU is Navi 23, a 7nm RDNA 2 chip of some 237 mm^2 produced by TSMC. Of interest, this is a x8 PCIe product, like the previous-gen RX 5500 XT. Unlike that GPU, however, this one ships with 8GB of memory standard, though the 128-bit interface and reduced 32MB Infinity Cache compared to the RX 6700 XT may help explain why AMD is specifically positioning this as a 1080p option.


Before proceeding, let’s play devil’s advocate here about the $379+ pricing. Realistically, given the situation – including the apparent rising cost of GDDR6 memory – this is not as outrageous as it might seem to those who remember AMD’s hyper-competitive position in the RX 580 era. Yes, there was a time in recent memory when you could buy a GPU for around $200 that was perfect for 1080p gaming at high settings.

Polaris GPUs have been around for five years, and still in use in many an enthusiast PC, I daresay. The 8GB version of the RX 480 launched with an MSRP $239 in 2016, but we live in the world of constrained supply and profitable consumer GPU crypto mining. If the RX 6600 XT performs a little better than the $329+ MSRP RTX 3060, isn’t that enough for now?

Today’s Test Sample

AMD sent over an MSI card for our review, with the GAMING X 8G at the top of MSI’s RX 6600 XT lineup. This model offers MSI’s TWIN FROZR 8 thermal system and their highest factory overclock – 2428 MHz (stock 2359 MHz) Game and 2607 MHz (stock 2589 MHz) Boost clocks reported via GPUZ.

It’s a fairly substantial card, with dimensions of 277 x 130 x 51 mm / 10.9 x 5.1 x 2 inches, and weight of 886 g / 31.25 oz. And, though an overclocked card, it still requires just a single 8-pin PCIe connector. As to pricing for this particular model, I will have to update later (I think it’s a safe bet that it will be over $400).

Update (8/11/21): The MSI RX 6600 XT GAMING X is listed on Newegg for $579.99. Ouch!

Performance Testing

I decided to do something a little different (for me) with this launch review, choosing to look at this new card only at 1080p, and simply comparing it to cards that I think people are actually using – such as the RX 580 and GTX 1060. I was also curious as to how this card might perform against the RX 5700 XT, so I re-tested that as well. Finally, I put an RTX 3060 on the test bench to see if the 6600 XT is indeed worth the $50 premium at MSRP ($379 vs $329).

All previous GPU testing here at PC Perspective was abandoned in the process of creating this review. No, I’m not re-inventing the wheel here, but I am presenting all-new testing on the newest available AGESA, the latest build of Windows, and most current chipset and graphics drivers from AMD. The platform was also newly outfitted with a Ryzen 7 5800X for this review, which is an outstanding high FPS 1080p CPU option.

PC Perspective GPU Test Platform
Processor AMD Ryzen 7 5800X (1800MHz FCLK)
Motherboard ASUS ROG Crosshair VIII HERO (Wi-Fi)
BIOS 3703
Memory 32GB (16GBx2) G.Skill Trident Z NEO DDR4-3600 CL14
Storage Samsung 980 PRO 2TB NVMe SSD
Samsung 850 EVO 1TB SSD
Power Supply CORSAIR RM1000x 1000W
Operating System Windows 10 64-bit (21H1, 19043.928)
Drivers GeForce Game Ready Driver 471.41
AMD Radeon Software Adrenalin 2020 21.7.2
AMD Radeon Software Adrenalin 2020 21.8.1 (RX 6600 XT Press Driver)

And now for some results at 1080p, which is of course the resolution that AMD has targeted with the RX 6600 XT. How did it perform relative to a selection of midrange GPUs from the past five years or so? Very well, as you will see. I mentioned re-testing a Radeon RX 5700 XT, and I think you’ll find the result rather interesting (SPOILER: it’s about the same as the new RX 6600 XT).

AMD Radeon RX 6600 XT MSI AC Valhalla
AMD Radeon RX 6600 XT MSI F1 2019
AMD Radeon RX 6600 XT MSI Far Cry 5
AMD Radeon RX 6600 XT MSI FF XIV E
AMD Radeon RX 6600 XT MSI Metro Exodus

Well, AMD obviously succeeded in out-performing NVIDIA’s RTX 3060 – at least in the raster-based 1080p benchmarks presented here. The bad news for AMD? Their 2-year-old RX 5700 XT is just as fast, and sometimes faster. It should be expected, as midrange cards often match the performance of previous-gen high-end offerings. But if you still have a 5700 XT in your system your AMD upgrade path begins with a 6700 XT, and not this one.


Power Consumption
AMD Radeon RX 6600 XT MSI Wall Power

Just looking at total system power measured at the wall here, and the Radeon RX 6600 XT is delivering RX 5700 XT performance levels at significantly lower power than that earlier GPU – at the same 7nm TSMC process. As if we needed another reminder, RDNA 2 is an impressive architecture.

Final Thoughts

The Radeon RX 6600 XT on test today was the rather substantial MSI GAMING X version with a factory OC and a big, quiet cooler. In the initial testing presented here it offered performance so close to an RX 5700 XT that we might as well call it a tie. When comparing this new GPU to the RTX 3060 at 1080p we find that AMD was accurate in their claim of superior performance, though we only tested traditional raster 3D and nothing with real-time ray tracing. High-refresh 1920×1080 gaming is AMD’s target for this new GPU, and it offers just that.

I think it’s fair to say that any new addition to the current graphics market would be a welcome one – if it was somehow easy to purchase at or below list price. I suspect that the RX 6600 XT will be just as scarce as other Radeon cards this generation, as it is forced to compete for 7nm fab space already loaded with AMD products. Seriously, how can TSMC meet the demand for Ryzen and Epyc CPUs, console APUs, and consumer graphics cards, all produced on the same node?

Review Disclosures

This is what we consider the responsible disclosure of our review policies and procedures.

How Product Was Obtained

The product was provided by AMD for the purpose of this review.

What Happens To Product After Review

The product is on extended loan for future testing and product comparisons.

Company Involvement

AMD / MSI had no control over the content of the review and were not consulted prior to publication.

PC Perspective Compensation

Neither PC Perspective nor any of its staff were paid or compensated in any way by AMD / MSI for this review.

Advertising Disclosure

AMD / MSI have not purchased advertising at PC Perspective during the past twelve months.

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About The Author

Sebastian Peak

Editor-in-Chief at PC Perspective. Writer of computer stuff, vintage PC nerd, and full-time dad. Still in search of the perfect smartphone. In his nonexistent spare time Sebastian's hobbies include hi-fi audio, guitars, and road bikes. Currently investigating time travel.

1 Comment

  1. BigTed

    So, in a parallel universe where covid and mining don’t exist, I reckon this card would be $100 less.


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