GIGABYTE Radeon RX 7900 XT vs Sapphire Pulse Radeon RX 6800 XT. Specifications, performance, tests

Comparison of basic technical data of graphics cards GIGABYTE Radeon RX 7900 XT and Sapphire Pulse Radeon RX 6800 XT, chip, information processing units.

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

Video memory capacity, type, bus width and bandwidth describe different properties. These values alone do not determine graphics performance.

• Memory Bandwidth
  800 GB/s 512 GB/s
• Memory Bus
  320 bit 256 bit
• Memory Clock
  2500 MHz -
• Memory Data Rate
  20 Gbps -
• Memory Size
  20 GB 16 GB
• Memory Type
  GDDR6 GDDR6
• Memory Speed (legacy frequency label)
  - 2000 MHz

Published GPU clock frequencies describe different operating modes. Clock speed alone does not determine graphics performance.

• Base Clock
  1500 MHz 1875 MHz + 3%
• Boost Clock
  2400 MHz 2310 MHz + 3%
• Game Clock
  2000 MHz 2065 MHz + 2%
• Overclocking
  Yes Yes

Graphics card power limits and recommended system power supply describe different specifications.

• Maximum Junction Temperature
  - 96 °C
• TDP
  300 W 300 W
• TDP (up)
  - 345 W

Types and sizes of coolers for graphics card cooling system GIGABYTE Radeon RX 7900 XT and Sapphire Pulse Radeon RX 6800 XT.

• Cooler-Type
  Air cooling Air cooling
• Fan-Type
  Axial Axial
• Fan 1
  3 x 90 mm 3 x 90 mm
• Fan 2
  - -
• Noise (Idle)
  0 dB / Silent 0 dB / Silent
• Noise (Load)
  - 36-37 dB

Connectivity and connections.

• DisplayPort Ports
  2 × DisplayPort 2.1 3 × DisplayPort 1.4a
• DVI Ports
  - -
• HDCP Version
  2.3 2.3
• HDMI Ports
  1 × HDMI 2.1 1 × HDMI 2.1
• Max. Displays
  4 4
• PCIe Interface
  PCIe 4.0 x16 PCIe 4.0 x16
• Power Connectors
  2 x 8-Pin 2 x 8-Pin
• USB-C Ports
  1 × USB-C -
• VGA Ports
  - -

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

• DirectX
  12_2 (Ultimate) 12_2
• DLSS / FSR
  Yes No
• LED
  No LED lighting Addressable LED
• Max. resolution
  7680 × 4320 7680 × 4320
• Raytracing
  Yes Yes

Built-in support for video and image compression standards.

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

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

• Height
  113 mm 135 mm
• Length
  276 mm 313 mm
• Slot Size
  3 PCIe-Slots 3 PCIe-Slots
• Weight
  - -
• Width
  51 mm 53 mm

Comparison of interfaces and release dates for GPU Sapphire Pulse Radeon RX 6800 XT and GIGABYTE Radeon RX 7900 XT.

• Documents
  data sheet data sheet
• Launch Price (historical)
  - 779 $
• Part Number
  GV-R79XT-20GC-B 11304-03-20G
• Process Technology
  5 nm 7 nm
• Release date
  Q4/2022 Q1/2021