PowerColor Radeon RX 6600 XT Red Devil review

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Radeon RX 6600 XT will be fitted with 8 Gigabytes of GDDR6 memory; that means it is connected to a 128-bit wide memory bus, and that's a severe limitation. AMD tries to compensate for that limited memory bus by running it at 16 Gbps (effective data rate) as well as applying an additional on-die-on-GPU L3 cache (32MB). The two both will help you in Full HD and WQHD resolutions, but once that L3 cache is depleted, mostly in GPU bound Ultra HD you can expect to see a performance hit.

The PowerColor Red Devil cooling design is based on a dual-fan cooler. The cards all get HDMI 2.1 connectors and the latest iteration in DisplayPort. Most cards will hold an 8-pin headers configuration depends on AIC/AIB choices as partner cards are free to choose to use whatever they deem applicable. 

The clock frequencies are specified as 2188 MHz Base, 2428 MHz Game, and 2607 MHz Boost. The Boost frequency, on the other hand, is no longer a fixed setting; instead, the power limiter is the most important component to consider. Frequencies have a range of values that vary depending on the power allowance. The 8GB of GDDR6 memory operates at a frequency of 2000 MHz (16 Gbps effective). The card measures around 25cm in length which makes this a very compact product. 


Product Cores Rops Boost Max Memory Memory Clock GPU Power range
Radeon RX 6600 XT 2048 64 2589 MHz DDR6 16 Gbps Navi 23 0%
MSI Radeon RX 6600 XT Gaming X 2048 64 2607 MHz DDR6 16 Gbps Navi 23 4%
XFX Radeon 6600 XT MERC 308 2048 64 2607 MHz DDR6 16 Gbps Navi 23 20%
PowerColor Radeon RX 6600 XtT Red Devil 2048 64 2607 MHz DDR6 16 Gbps Navi 23 20%






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