Comparing XFX Speedster MERC 310 Radeon RX 7900 XT Black Edition vs PowerColor Liquid Devil Radeon RX 6900 XT Ultimate

gpu XFX Speedster MERC 310 Radeon RX 7900 XT Black Edition item

• Based on
  AMD Radeon RX 7900 XT AMD Radeon RX 6900 XT
• GPU Chip
  Navi 31 (RDNA 3) Navi 21
• Execution units
  84 80
• Shader
  5376 5120
• Render Output Units
  192 128
• Texture Units
  336 320

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

• Base Clock
  1.500 GHz 1.825 GHz
• Boost Clock
  2.560 GHz+ 7 % 2.525 GHz+ 12 %
• Avg (Game) Clock
  2.220 GHz 2.375 GHz+ 18 %
• Overclocking
  Yes Yes

• TDP
  300 W 300 W
• TDP (up)
  -- 345 W
• PCIe-Power
  2 x 8-Pin 3 x 8-Pin

• Fan-Type
  Axial --
• Fan 1
  3 x 100 mm --
• Cooler-Type
  Air cooling Water cooling
• 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
  3x DP v2.1 2x DP v1.4a
• USB-C Ports
  -- 1

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

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

• Length
  344 mm 266 mm
• Height
  128 mm 162 mm
• Width
  55 mm 42 mm
• Width (Slots)
  -- 2 PCIe-Slots

• GPU Interface
  PCIe 4 x 16 PCIe 4.0 x 16
• Release date
  Q4/2022 Q2/2021
• Structure size
  5 nm 7 nm
• Part-no
  RX-79TMERCB9 AXRX 6900XTU 16GBD6-W2DHC/OC
• Documents
  data sheet data sheet