ASRock Radeon RX 6600 Challenger D vs AMD Radeon RX 7700 XT. Specifications, performance, tests

Comparison of basic technical data of graphics cards ASRock Radeon RX 6600 Challenger D and AMD Radeon RX 7700 XT, chip, information processing units.

• Based on
  AMD Radeon RX 6600 AMD Radeon RX 7700 XT
• Execution Units
  28 54
• GPU Chip
  Navi 23 XL Navi 33 XT
• Render Output Units
  64 96
• Shader
  1792 3456
• Texture Units
  112 128
• AI Accelerators
  - 108
• Architecture
  - RDNA 3
• Compute Units
  - 54
• Ray Accelerators
  - 54
• RT Cores
  - 32
• Streaming Multiprocessors
  - 32

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

• Memory Bandwidth
  224 GB/s 432 GB/s
• Memory Bus
  128 bit 192 bit
• Memory Size
  8 GB 12 GB
• Memory Speed (legacy frequency label)
  1750 MHz -
• Memory Type
  GDDR6 GDDR6
• Infinity Cache
  - 48 MB
• Memory Clock
  - 2250 MHz
• Memory Data Rate
  - 18 Gbps

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

• Base Clock
  1626 MHz 1900 MHz
• Boost Clock
  2491 MHz 2544 MHz
• Game Clock
  2044 MHz 2171 MHz
• Overclocking
  Yes Yes

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

• Maximum Junction Temperature
  110 °C -
• TDP
  132 W 200 W
• TDP (up)
  - -
• System Power Supply
  - 700 W (System power requirement)
• Typical Board Power
  - 245 W

Types and sizes of coolers for graphics card cooling system ASRock Radeon RX 6600 Challenger D and AMD Radeon RX 7700 XT.

• Cooler-Type
  Air cooling Air cooling
• Fan-Type
  Axial -
• Fan 1
  2 x 95 mm -
• Fan 2
  - -
• Noise (Idle)
  0 dB / Silent 0 dB / Silent
• Noise (Load)
  - -

Connectivity and connections.

• DisplayPort Ports
  3 × DisplayPort 1.4 -
• DVI Ports
  - -
• HDCP Version
  2.3 -
• HDMI Ports
  1 × HDMI 2.1 -
• Max. Displays
  4 4
• PCIe Interface
  PCIe 4.0 x8 PCIe 4.0 x16
• Power Connectors
  1 x 8-Pin 2x8-Pin
• USB-C Ports
  - -
• VGA Ports
  - -
• DisplayPort Version
  - 2.1
• HDMI Version
  - 2.1

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

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

Built-in support for video and image compression standards.

• AV1
  Decode Decode / Encode
• 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
  132 mm -
• Length
  269 mm -
• Slot Size
  2 PCIe-Slots -
• Weight
  627 g -
• Width
  41 mm -

Comparison of interfaces and release dates for GPU AMD Radeon RX 7700 XT and ASRock Radeon RX 6600 Challenger D.

• Documents
  data sheet -
• Launch Price (historical)
  - -
• Part Number
  RX6600 CLD 8G -
• Process Technology
  7 nm 6 nm
• Release date
  Q4/2021 2023

• FP16 (theoretical)
  - 71.88 TFLOPS (2:1)
• FP32 (theoretical)
  - 35.94 TFLOPS
• FP64 (theoretical)
  - 1,123 GFLOPS (1:32)
• Pixel Rate
  - 332.8 GPixel/s
• Texture Rate
  - 561.6 GTexel/s