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AMD Radeon RX 6600 XT & RX 6600 Custom Graphics Cards From ASRock Spotted With 8 GB GDDR6 Memory

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ASRock has once again submitted its custom AMD Radeon RX 6600 XT and RX 6600 graphics cards to EEC but this time, they have updated the memory specifications. The graphics cards are custom variants from ASRock that were listed over at EEC (Eurasian Economic Commission).

ASRock Submits Several Custom AMD Radeon RX 6600 XT & Radeon RX 6600 Graphics Cards at EEC With 8 GB GDDR6 Memory

ASRock seems to have been updating the specs list for a while now. The company first submitted its custom AMD Radeon RX 6600 XT graphics cards with 12 GB GDDR6 memory and also listed the Radeon RX 6700 (Non-XT) with 6 GB VRAM. However, the latest reports revealed that the Radeon RX 6700 (Non-XT) would end up with the same 12 GB GDDR6 VRAM as the Radeon RX 6700 XT and we can also see that the Radeon RX 6600 XT has also received a spec update.

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ASRock's custom AMD Radeon RX 6600 XT & RX 6600 graphics cards submitted to the EEC. (Image Credits: Komachi)

As per the latest listing by ASRock, the AMD Radeon RX 6600 XT and the RX 6600 graphics cards will feature an 8 GB GDDR6 memory capacity running along with a 128-bit bus interface. That's quite a lot of memory for a small bus interface but we have seen that AMD is handling memory bandwidth quite well with its new Infinity Cache design on the RDNA 2 GPUs. As for the listing, we have the following graphics cards submitted by ASRock:

  • ASRock Radeon RX 6600 XT Phantom Gaming D
  • ASRock Radeon RX 6600 XT Challenger D OC
  • ASRock Radeon RX 6600 XT Challenger I
  • ASRock Radeon RX 6600 Challenger D OC
  • ASRock Radeon RX 6600 Challenger I

The AMD Radeon RX 6600 series graphics cards will be based on the AMD Navi 23 GPU core. It is expected to feature 32 compute units or 2048 stream processors along with 32 ray accelerator cores. The GPU will also be packed with 64 MB of Infinity Cache which will help it boost its bandwidth by a huge margin. For memory, we are looking at up to 8 GB GDDR6 capacity that will operate across a 128-bit bus interface and offer pin speeds of up to 16 Gbps. This should bring the total bandwidth to 256 GB/s.

As for products, once again nothing is mentioned except the fact that the Navi 23 GPU-based AMD Radeon RX 6600 series (referring to the RX 6600 XT) will be positioned as a premium 1080p gaming solution, offering faster performance than the RTX 3060. As for pricing, I personally expect a $299 US tag for the Navi 23 lineup if AMD wants it to succeed, especially if it's a 1080p card going against the NVIDIA GeForce RTX 3060 which already costs $329 US.

AMD Radeon RX 6000 Series "RDNA 2" Graphics Card Lineup:

Graphics CardAMD Radeon RX 6600AMD Radeon RX 6600 XTAMD Radeon RX 6700AMD Radeon RX 6700 XTAMD Radeon RX 6800AMD Radeon RX 6800 XTAMD Radeon RX 6900 XTAMD Radeon RX 6900 XT Liquid CooledAMD Radeon RX 6900 XTX
GPUNavi 23 (XL)Navi 23 (XT)Navi 22 (XL?)Navi 22 (XT?)Navi 21 XLNavi 21 XTNavi 21 XTXNavi 21 XTXHNavi 21 XTXH
Process Node7nm7nm7nm7nm7nm7nm7nm7nm7nm
Die Size237mm2237mm2336mm2336mm2520mm2520mm2520mm2520mm2520mm2
Transistors11.06 Billion11.06 Billion17.2 Billion17.2 Billion26.8 Billion26.8 Billion26.8 Billion26.8 Billion26.8 Billion
Compute Units283236406072808080
Stream Processors179220482304256038404608512051205120
TMUs/ROPs112/64128/64TBA160/64240 / 96288 / 128320 / 128320 / 128320 / 128
Game Clock2044 MHz2359 MHzTBA2424 MHz1815 MHz2015 MHz2015 MHz2250 MHzTBA
Boost Clock2491 MHz2589 MHzTBA2581 MHz2105 MHz2250 MHz2250 MHz2345 MHz2435 MHz
FP32 TFLOPs9.0 TFLOPs10.6 TFLOPsTBA13.21 TFLOPs16.17 TFLOPs20.74 TFLOPs23.04 TFLOPs24.01 TFLOPs24.93 TFLOPs
Memory Size8 GB GDDR6 + 32 MB Infinity Cache?8 GB GDDR6 + 32 MB Infinity Cache12 GB GDDR6 + 96 MB Infinity Cache?12 GB GDDR6 + 96 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache16 GB GDDR6 +128 MB Infinity Cache
Memory Bus128-bit128-bit192-bit192-bit256-bit256-bit256-bit256-bit256-bit
Memory Clock14 Gbps16 Gbps16 Gbps?16 Gbps16 Gbps16 Gbps16 Gbps18 Gbps18 Gbps
Bandwidth224 GB/s256 GB/s384 GB/s384 GB/s512 GB/s512 GB/s512 GB/s576 GB/s576 GB/s
TDP132W160WTBA230W250W300W300W330W330W
Price$329 US$379 USTBA$479 US$579 US$649 US$999 US~$1199 US~$1199 US
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