AMD Radeon RX 6950XT features Navi 21 KXTX GPU, supports Hynix and Samsung 18Gbps memory

Published: 7th May 2022, 09:01 GMT   Comments

AMD Navi 21 KXTX

AMD RX 6950XT graphics card will ship with Navi 21 KXTX GPU, as revealed by the leaked BIOS. 

Chiphell community was quick to find BIOSes in TechPowerUP database. Although they were already removed, they confirm high TGP ranges for RX 6950XT SKU, their power limits and what memory they support.

Two of the cards listed there were MSI RX 6950XT GAMING X TRIO and SAPPHIRE RX 6950XT NITRO+ Pure. Although the latter has power limit set to 325W it can further be adjusted by 20%, which means as much as 390W of power. The power limit for MSI card is 332W and up to +12% increase, which is 372W. Do note that those are TGP (GPU+memory), not TBP. This means that full graphics card power will easily be beyond 400W.

AMD Radeon RX 6950XT BIOSes (MSI – left, Sapphire – right), Source: TechPowerUP

The RX 6950XT model will ship with Navi 21 KXTX GPU, not XTXH as previously rumored. This means that AMD now has a fourth variant of Navi 21 GPU for its consumer Radeon series. Although, this is just a codename that could ‘theoretically’ be flashed over XT or XTXH variants.

However, there is a reason why one should not do it. The BIOS only supports 18 Gbps memory from HYNIX and Samsung. The latter appears to be the same variant as RX 6500XT memory uses (designated as HC18).

AMD Radeon RX 6000 Series
VideoCardz.comGPUStream ProcessorsMemoryMemory SpeedTBP
RX 6950 XT7nm Navi 21 KXTX
 
5120
 
16GB G6 256b
 
18 Gbps
 
335W
RX 6900 XT LC7nm Navi 21 XTXH
 
5120
 
16GB G6 256b
 
18 Gbps
 
330W
RX 6900 XT7nm Navi 21 XTX
 
5120
 
16GB G6 256b
 
16 Gbps
 
300W
RX 6800 XT7nm Navi 21 XT
 
4608
 
16GB G6 256b
 
16 Gbps
 
300W
RX 68007nm Navi 21 XL
 
3840
 
16GB G6 256b
 
16 Gbps
 
250W
RX 6750 XT7nm Navi 22 XT
 
2560
 
12GB G6 192b
 
18 Gbps
 
250W
RX 6700 XT7nm Navi 22 XT
 
2560
 
12GB G6 192b
 
16 Gbps
 
230W
RX 6650 XT7nm Navi 23 XT
 
2048
 
8GB G6 128b
 
17.5 Gbps
 
180W
RX 6600 XT7nm Navi 23 XT
 
2048
 
8GB G6 128b
 
16 Gbps
 
160W
RX 66007nm Navi 23 XL
 
1792
 
8GB G6 128b
 
14 Gbps
 
132W
RX 6500 XT6nm Navi 24 XT
 
1024
 
4GB G6 64b
 
18 Gbps
 
107W
RX 64006nm Navi 24 XL
 
768
 
4GB G6 64b
 
16 Gbps
 
53W

Source: TechPowerUP (now removed) via Chiphell




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