NVIDIA GeForce RTX 4080 12 GB vs AMD Radeon RX 6800 XT. Specifications, performance, tests

Comparison of basic technical data of graphics cards NVIDIA GeForce RTX 4080 12 GB and AMD Radeon RX 6800 XT, chip, information processing units.

• Architecture
  Ada Lovelace -
• Execution Units
  7680 72
• GPU Chip
  AD104 Navi 21 XT
• L1 Cache
  128 KB -
• L2 Cache
  48 MB -
• Render Output Units
  80 128
• Texture Units
  240 288
• Based on
  - AMD Radeon RX 6800 XT
• Compute Units
  - 72
• Ray Accelerators
  - 72
• Shader
  - 4608

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

• Memory Bandwidth
  504.2 GB/s 512 GB/s
• Memory Clock
  1313 MHz -
• Memory Data Rate
  21 Gbps 16 Gbps
• Memory Size
  12 GB 16 GB
• Memory Type
  GDDR6X GDDR6
• Infinity Cache
  - 128 MB
• Memory Bus
  - 256 bit
• 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
  2310 MHz 1825 MHz
• Boost Clock
  2610 MHz 2250 MHz
• Game Clock
  - 2015 MHz
• Overclocking
  - Yes

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

• System Power Supply
  600 W (PSU recommendation) 750 W (System power requirement)
• TDP
  285 W 300 W
• Maximum Junction Temperature
  - 96 °C
• TDP (up)
  - 345 W
• Typical Board Power
  - 300 W

Types and sizes of coolers for graphics card cooling system NVIDIA GeForce RTX 4080 12 GB and AMD Radeon RX 6800 XT.

• Cooler-Type
  - Air cooling
• Fan-Type
  - Axial
• Fan 1
  - 3 x 80 mm
• Fan 2
  - -
• Noise (Idle)
  - 0 dB / Silent
• Noise (Load)
  - 37 dB

Connectivity and connections.

• DisplayPort Ports
  3 × DisplayPort 1.4a 2 × DisplayPort 1.4a
• 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
  1x 16-pin 2x8-Pin
• DVI Ports
  - -
• HDCP Version
  - 2.3
• HDMI Version
  - HDMI 2.1 VRR and FRL
• USB-C Ports
  - 1 × USB-C
• VGA Ports
  - -

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

• CUDA
  8.9 -
• DirectX
  12.2 12_2
• Max. resolution
  3840 × 2160 7680 × 4320
• OpenCL
  3.0 -
• OpenGL
  4.6 -
• Shader Model
  6.7 -
• Vulkan
  1.3 -
• DLSS / FSR
  - No
• LED
  - Non addressable LED
• Raytracing
  - Yes

Built-in support for video and image compression standards.

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

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

• Length
  267 mm 270 mm
• Slot Size
  Dual-slot 3 PCIe-Slots
• Width
  112 mm -
• Height
  - 120 mm
• Weight
  - 1503 g

Comparison of interfaces and release dates for GPU AMD Radeon RX 6800 XT and NVIDIA GeForce RTX 4080 12 GB.

• Process Technology
  4 nm 7 nm
• Release date
  Q3/2022 2020-11-18
• Documents
  - -
• Launch Price (historical)
  - 799 $
• Part Number
  - -

• FP16 (theoretical)
  40.09 TFLOPS (1:1) -
• FP32 (theoretical)
  40.09 TFLOPS -
• FP64 (theoretical)
  626.4 GFLOPS (1:64) -
• Pixel Rate
  208.8 GPixel/s -
• Texture Rate
  626.4 GTexel/s -