Comparing ASRock Radeon RX 7900 XT 20GB vs PowerColor Liquid Devil Radeon RX 6800 XT

gpu PowerColor Liquid Devil Radeon RX 6800 XT item

• Based on
  AMD Radeon RX 6800 XT AMD Radeon RX 7900 XT
• GPU Chip
  Navi 21 XT Navi 31 (RDNA 3)
• Execution units
  72 84
• Shader
  4608 5376
• Render Output Units
  128 192
• Texture Units
  288 336

• Memory Size
  16 GB 20 GB
• Memory Type
  GDDR6 GDDR6
• Memory Speed
  2 GHz 20 Gbps
• Memory Bandwith
  512 GB/s 800 GB/s
• Memory Interface
  256 bit 320 bit

• Base Clock
  1.900 GHz+ 4 % 1.500 GHz
• Boost Clock
  2.360 GHz+ 5 % 2.400 GHz
• Avg (Game) Clock
  2.110 GHz+ 5 % 2.000 GHz
• Overclocking
  Yes Yes

• TDP
  300 W 300 W
• TDP (up)
  345 W --
• Tjunction max
  96 °C --
• PCIe-Power
  3 x 8-Pin 2 x 8-Pin

• Fan-Type
  -- Axial
• Cooler-Type
  Water cooling Air cooling
• Fan 1
  -- 3 x 90 mm
• Noise (Idle)
  0 dB / Silent 0 dB / Silent
• Noise (Load)
  0 dB --

• Max. Displays
  4 4
• HDCP-Version
  2.3 2.3
• HDMI Ports
  1x HDMI v2.1 1x HDMI v2.1
• DP Ports
  2x DP v1.4a 2x DP v2.1
• USB-C Ports
  1 1

• Max. resolution
  7680x4320 7680x4320
• DirectX
  12_2 12_2 (Ultimate)
• Raytracing
  Yes Yes
• DLSS / FSR
  No Yes
• LED
  Addressable LED No LED lighting

• h264
  Decode / Encode Decode / Encode
• VP8
  Decode / Encode Decode / Encode
• h265 / HEVC
  Decode / Encode Decode / Encode
• VP9
  Decode / Encode Decode / Encode
• AV1
  Decode Decode / Encode

• Length
  266 mm 276 mm
• Height
  162 mm 113 mm
• Width
  42 mm 51 mm
• Width (Slots)
  2 PCIe-Slots 3 PCIe-Slots

• GPU Interface
  PCIe 4.0 x 16 PCIe 4 x 16
• Release date
  Q1/2021 Q4/2022
• Structure size
  7 nm 5 nm
• Part-no
  AXRX 6800XT 16GBD6-W2DHC/OC Radeon RX 7900 XT 20GB
• Documents
  data sheet data sheet