AMD Radeon RX 7900 XT Phantom Gaming 20GB OC vs PowerColor Red Devil Radeon RX 6800 XT. Specifications, performance, tests

Comparison of basic technical data of graphics cards AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and PowerColor Red Devil Radeon RX 6800 XT, chip, information processing units.

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

Comparison of the amount of memory on board graphics cards. The more the better.

• 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

Let's compare the memory frequency of graphics cards AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and PowerColor Red Devil Radeon RX 6800 XT. The higher the better.

• Base Clock
  1.500 GHz 1.900 GHz+ 4 %
• Boost Clock
  2.450 GHz+ 2 % 2.340 GHz+ 4 %
• Avg (Game) Clock
  2.075 GHz 2.090 GHz+ 4 %
• Overclocking
  Yes Yes

Connectors, the number of thermal watts emitted in normal mode and at overclocking.

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

Types and sizes of coolers for graphics card cooling system AMD Radeon RX 7900 XT Phantom Gaming 20GB OC and PowerColor Red Devil Radeon RX 6800 XT.

• Fan-Type
  Axial Axial
• Fan 1
  3 x 100 mm 2 x 100 mm
• Fan 2
  -- 1 x 90 mm
• Cooler-Type
  Air cooling Air cooling
• Noise (Idle)
  0 dB / Silent 0 dB / Silent
• Noise (Load)
  -- 36-38 dB

Connectivity and connections.

• 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 3x DP v1.4a
• DVI Ports
  -- --
• VGA Ports
  -- --
• USB-C Ports
  -- --

Technical data that is used to its full potential in computer games.

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

Built-in support for video and image compression standards.

• 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

The difference in size, weight and slot of the compared devices

• Length
  330 mm 320 mm
• Height
  140 mm 135 mm
• Width
  58 mm 62 mm
• Width (Slots)
  3 PCIe-Slots 3 PCIe-Slots
• Weight
  1450 g 1610 g

Comparison of interfaces and release dates for GPU PowerColor Red Devil Radeon RX 6800 XT and AMD Radeon RX 7900 XT Phantom Gaming 20GB OC.

• GPU Interface
  PCIe 4 x 16 PCIe 4.0 x 16
• Release date
  Q4/2022 Q1/2021
• Release price
  -- 799 $
• Structure size
  5 nm 7 nm
• Part-no
  RX7900XT PG 20GO AXRX 6800XT 16GBD6-3DHE/OC
• Documents
  data sheet data sheet