Comparing GIGABYTE Radeon RX 6800 XT Gaming OC 16G vs XFX Speedster MERC 310 Radeon RX 7900 XT

gpu GIGABYTE Radeon RX 6800 XT Gaming OC 16G 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
  1.825 GHz 1.500 GHz
• Boost Clock
  2.285 GHz+ 2 % 2.535 GHz+ 6 %
• Avg (Game) Clock
  2.045 GHz+ 1 % 2.175 GHz
• Overclocking
  Yes Yes

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

• Fan-Type
  Axial Axial
• Cooler-Type
  Air cooling Air cooling
• Fan 1
  3 x 80 mm 3 x 100 mm
• Noise (Idle)
  0 dB / Silent 0 dB / Silent
• Noise (Load)
  36-37 dB --

• Max. Displays
  4 4
• HDCP-Version
  2.3 2.3
• HDMI Ports
  2x HDMI v2.1 1x HDMI v2.1
• DP Ports
  2x DP v1.4a 3x DP v2.1

• Max. resolution
  7680x4320 7680x4320
• DirectX
  12_2 12_2 (Ultimate)
• Raytracing
  Yes Yes
• DLSS / FSR
  No Yes
• LED
  GIGABYTE RGB Fusion 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
  286 mm 344 mm
• Height
  118 mm 128 mm
• Width
  58 mm 55 mm
• Width (Slots)
  3 PCIe-Slots --

• GPU Interface
  PCIe 4.0 x 16 PCIe 4 x 16
• Release date
  Q4/2020 Q4/2022
• Structure size
  7 nm 5 nm
• Part-no
  GV-R68XTGAMING OC-16GD RX-79TMERCU9
• Documents
  data sheet data sheet