AMD Radeon RX 7900 GRE vs NVIDIA GeForce RTX 3090. Specifications

Comparison of basic technical data of graphics cards AMD Radeon RX 7900 GRE and NVIDIA GeForce RTX 3090, chip, information processing units.

• AI Accelerators
  160 -
• Ray Accelerators
  80 -
• Shader
  5120 10496
• Compute Units
  80 -
• Execution units
  80 82
• Architecture
  RDNA 3 -
• Based on
  AMD Radeon RX 7900 GRE -
• Texture Units
  - 328
• Render Output Units
  - 112
• GPU Chip
  - GA102-300-A1

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

• Infinity Cache
  64 MB -
• Memory Speed
  18 Gbps 19.5 Gbps
• Memory Bandwidth
  576 GB/s -
• Memory Bus
  256 bit -
• Memory Type
  GDDR6 GDDR6X
• Memory Size
  16 GB 24 GB
• Memory Interface
  - 384 bit
• Memory Bandwith
  - 936 GB/s
• Memory Clock
  - 1.219 GHz

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

• Boost Clock
  2245 MHz 1.695 GHz
• Game Clock
  1880 MHz -
• Base Clock
  - 1.4 GHz

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

• Power Connectors
  2x8-Pin -
• TDP
  260 W 350 W

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

• Peak FP32 (theoretical)
  46 TFLOPS -
• Shader Model
  - 6.6
• Vulkan
  - 1.3
• OpenCL
  - 3.0
• OpenGL
  - 4.6
• DirectX
  - 12_2
• Max. resolution
  - 7680x4320
• Max. Displays
  - 4

Built-in support for video and image compression standards.

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

Comparison of interfaces and release dates for GPU NVIDIA GeForce RTX 3090 and AMD Radeon RX 7900 GRE.

• Architecture source
  https://www.amd.com/content/dam/amd/en/documents/partner-hub/ryzen/amd-consumer-pocket-guide-ryzen-radeon-july-2024.pdf -
• Verified on
  2026-09-30 -
• Official source
  https://www.amd.com/en/products/graphics/desktops/radeon/7000-series/amd-radeon-rx-7900-gre.html -
• Release date
  - Q3/2020
• Structure size
  - 8 nm
• GPU Interface
  - PCIe 4.0 x 16
• Architecture
  - Ampere

• FP64 (double)
  - FP64 (double)
• FP32 (float)
  - FP32 (float)
• FP16 (half)
  - 35.58 TFLOPS
• Texture Rate
  - 556.0 GTexel/s
• Pixel Rate
  - 189.8 GPixel/s