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  • Post published:11/10/2021
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PowerColor  Red Devil  Radeon RX 6900 XT
The devil made me do it …

In this review, we’ll take a look at PowerColor’s latest 6900 XT Red Devil graphics card, which is primarily targeted at the GeForce RTX 3080 (Ti) and 3090.  Join us in this extensive review; this 6900 XT version shows a bit more TLC as it has been fitted with custom cooling. The result is a graphics card that looks both handsome and is silent as well. The card was fabbed around a custom PCB, premium components, triple-fan-based cooler, increased clock frequencies, as well as an increased power limiter. The 6900 XT, which we will analyze in this review, has 80 active CUs multiplied by 64 shading cores, for a total of 5120 shading processors. This card features 16 GB of GDDR6 memory connected through a 256-bit memory bus, not to be confused with the GDDR6X memory used by NVIDIA’s RTX 3080 and 3090 graphics cards. That equates to a memory bandwidth of 512 GB/s. This product’s reference TDP is 300 watts. The boost clock of 2340 MHz (2250 MHz = reference) is quite fast. Similar to its two brothers, the card features a 128 MB ‘infinity cache’ (which we’ll refer to as L3 cache). The card will compete against NVIDIA’s current best, the GeForce RTX 3090. This graphics card will cost you … 1500 USD in this configuration.

AMD and their board partners will equip all 6800/6900 GPUs with 16 GB of GDDR6 memory. That is true for all three cards. Thus, a 256-bit wide memory bus is required. AMD, on the other hand, has a few architectural tricks up its sleeve, as they incorporated a large phat whopper of an L3 cache inside the GPU. RDNA2-based graphics processors are compatible with DirectX Ultimate, a term that refers to additional feature levels such as DirectX Raytracing (DXR), Variable Rate Shading (VRS), Mesh Shaders, and Sampler Feedback.  

 

AMD Radeon RX 6000 Series reference specs
RX 6900 XTRX 6800XTRX 6800RX 6700 XTRX 6600 XTRX 6600
GPUNavi 21 XT(XH)Navi 21 XTNavi 21 XLNavi 22 XTNavi 23 XTNavi 23 XL
Cores512046083840256020481792
TMUs320288240160128112
ROPs12812896646464
Infinity Cache128 MB128 MB128 MB96 MB32 MB32 MB
Boost Clock2250 MHz2250 MHz2105 MHz2581 MHz2359 MHz
Memory Clock16 Gbps16 Gbps16 Gbps16 Gbps16 Gbps16 Gbps
Memory16 GB GDDR616 GB GDDR616 GB GDDR612 GB GDDR68 GB GDDR68 GB GDDR6
Memory Bus256-bit256-bit256-bit192-bit128-bit128-bit
Bandwidth512 GB/s512 GB/s512 GB/s384 GB/s256 GB/s256 GB/s
TBP300W300W250W230W160W
MSRP999 USD649 USD579 USD479 USD379 USD
Launch DateDecember 2021November 2021November 2021March 2021August 2021August 2021

    

PowerColor Radeon RX 6900 XT Red Devil

You will have noticed that Powercolor will be releasing two revisions in the series, a normal, OC, and Ultimate SKU. The OC one we test runs a faster boost clock and this brings in a notch more performance. Other than that, the hardware and components are 100% identical. The ultimate card is based on that XTXH GPU, it’s designated to have an operating frequency of Boost: 2235-2425MHz, it’s all a bit confusing sure, but essentially that is a further binned GPU qualified for best performance. As you can see the Red Devil series is receiving the same cooler that you will have noticed on the premium products, aside from an aesthetic tweak that is. The NVIDIA cooler is all dark-themed, the Devil revision has dark-colored insert elements. Other than that, you can expect a product with a nice fast Turbo at 2340 MHZ (2250 MHz reference) and, of course, that 16GB of graphics memory. The product is a bit of a novel because it offers a three fan cooler cooling down all primary elements, that’s GPU, DRAM, and the entire VRM segment. The card has a length of 32cm (320x135x62mm) and uses a 2.7 slot design. It holds extensive triple 8-pin PCIe power connectors; so if you do the math here you’ll end up at 150+150+150+75(PCIe) yes, 525 Watts of board power. It comes fitted with a backplate and the right amount of RGB bling. In the I/O area, the card includes three DisplayPort 1.4 ports, one HDMI 2.1 connector. The 16GB GDDR6 memory clocks in at 2000 MHz (16 Gbps effective). We have to talk pricing as well, these cards should be spotted in a whopping 1000 USD marker, but they will be hard to find, we do expect prices to hover upwards of 1500 USD due to that. Yeah I know, there’s little else we can say on the matter of pricing. We’ll talk more about this in conclusion. As always, we have a lot to talk about and show you; next page, please.

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