SAPPHIRE NITRO+ Radeon RX 6800 XT 16GB vs AMD Radeon RX 7900 GRE. Specifications

Comparison of basic technical data of graphics cards SAPPHIRE NITRO+ Radeon RX 6800 XT 16GB and AMD Radeon RX 7900 GRE, chip, information processing units.

• Based on
  AMD Radeon RX 6800 XT AMD Radeon RX 7900 GRE
• Board Manufacturer
  Sapphire -
• Board Model
  SAPPHIRE NITRO+ Radeon RX 6800 XT 16GB -
• Board SKU
  11304-02-20G -
• Stream Processors
  4608 -
• AI Accelerators
  - 160
• Architecture
  - RDNA 3
• Compute Units
  - 80
• Execution Units
  - 80
• Ray Accelerators
  - 80
• Shader
  - 5120

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

• Memory Data Rate
  16 Gbps Effective 18 Gbps
• Memory Size
  16 GB 16 GB
• Memory Type
  GDDR6 GDDR6
• Infinity Cache
  - 64 MB
• Memory Bandwidth
  - 576 GB/s
• Memory Bus
  - 256 bit

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

• Boost Clock
  Up to 2360 MHz 2245 MHz
• Game Clock
  Up to 2110 MHz 1880 MHz

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

• System Power Supply
  850 W (System power requirement) -
• Total Board Power
  350 W -
• TDP
  - 260 W
• Typical Board Power
  - 260 W

Connectivity and connections.

• DisplayPort Ports
  3 × DisplayPort -
• HDMI Ports
  1 × HDMI -
• PCIe Interface
  PCIe 4.0 x16 -
• DisplayPort Version
  - 2.1
• HDMI Version
  - 2.1
• Power Connectors
  - 2x8-Pin

Built-in support for video and image compression standards.

• AV1
  - Decode / Encode

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

• Form Factor
  2.7 slot, ATX Dimension: 310(L)X 134.3(W)X 55.3 (H)mm -

Comparison of interfaces and release dates for GPU AMD Radeon RX 7900 GRE and SAPPHIRE NITRO+ Radeon RX 6800 XT 16GB.

• Official source
  https://www.sapphiretech.com/en/consumer/nitro-radeon-rx-6800-xt-16g-gddr6 https://www.amd.com/en/products/graphics/desktops/radeon/7000-series/amd-radeon-rx-7900-gre.html
• Verified on
  2026-09-30 2026-09-30
• Architecture source
  - https://www.amd.com/content/dam/amd/en/documents/partner-hub/ryzen/amd-consumer-pocket-guide-ryzen-radeon-july-2024.pdf
• Release date
  - 2023-07-27
• Verification scope
  - Explicit manufacturer fields refreshed; other original historical fields retained, not all reverified. Partial composite conflicts are preserved.

• FP32 (theoretical)
  - 46 TFLOPS