AMD Radeon PRO W6400 vs Radeon Pro W6900X
AMD Radeon PRO W6400
$229
Radeon Pro W6900X
$6,000
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768 Shaders
4GB GDDR6
2331MHz
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5120 Shaders
32GB GDDR6
2171MHz
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Peak AI Performance
7.16 TFLOPS
FP16
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Peak AI Performance
44.46 TFLOPS
FP16
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FP32
3.58 TFLOPS
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FP32
22.23 TFLOPS
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FP16
7.16 TFLOPS
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FP16
44.46 TFLOPS
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Form Factor
PCIe Card
1.0-Slots
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Form Factor
MPX
4.0-Slots
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TDP
50W
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TDP
300W
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-
-
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-
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-
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-
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GB6 Metal N/A
0%
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GB5 OpenCL N/A
0%
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GB5 OpenCL 120,660
40%
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GB5 CUDA N/A
0%
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GB5 CUDA N/A
0%
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GB5 Metal N/A
0%
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GB5 Metal 154,880
86%
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GB5 Vulkan N/A
0%
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GB5 Vulkan N/A
0%
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OCT 2020.1 N/A
0%
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OCT 2020.1 N/A
0%
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OCT Metal N/A
0%
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OCT Metal 435
74%
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Peak AI
Performance
7.16 TFLOPS
FP16
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Peak AI
Performance
44.46 TFLOPS
FP16
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FP16
7.16 TFLOPS
-
-
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-
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FP16
44.46 TFLOPS
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-
-
-
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FP32
3.58 TFLOPS
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-
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FP32
22.23 TFLOPS
-
-
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FP64
220 GFLOPS
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FP64
1.39 TFLOPS
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Pixel
Fillrate
74.592 GPixel/s
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Pixel
Fillrate
277.888 GPixel/s
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Texture
Fillrate
111.888 GTexel/s
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Texture
Fillrate
694.72 GTexel/s
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Manufacturer
AMD
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Manufacturer
Apple
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Chip Designer
AMD
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Chip Designer
AMD
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Architecture
RDNA 2
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Architecture
RDNA 2
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Family
Radeon PRO W
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Family
Radeon Pro W
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Codename
Beige Goby
Navi 24
Variant
Navi 24 XL GL
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Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XTA
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Market Segment
Workstation
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Market Segment
Workstation
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Release Date
1/19/2022
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Release Date
8/3/2021
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Foundry
TSMC
-
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Foundry
TSMC
-
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Fabrication Node
N6
-
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Fabrication Node
N7
-
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Die Size
107 mm²
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Die Size
520 mm²
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Transistor Count
5.4 Billion
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Transistor Count
26.8 Billion
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Transistor Density
50.47M/mm²
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Transistor Density
51.56M/mm²
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Form
PCIe Card
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Form
MPX
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Shading Units
768 Shaders
-
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Shading Units
5120 Shaders
-
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Texture Mapping Units
48 TMUs
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Texture Mapping Units
320 TMUs
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Render Output Units
32 ROPs
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Render Output Units
128 ROPs
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-
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-
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Ray-Tracing Cores
12 RT-Cores
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Ray-Tracing Cores
80 RT-Cores
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-
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-
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Compute Units
12 CUs
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Compute Units
80 CUs
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-
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-
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Graphics Processing Clusters
4 GPCs
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2331MHz
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-
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1825MHz Base
2171MHz
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L0
32KB/WGP
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L0
32KB/WGP
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L1
-
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128KB/Array
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L1
-
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128KB/Array
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L2
1MB Shared
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L2
4MB Shared
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L3
16MB Shared
0.42TB/s
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L3
128MB Shared
1.66TB/s
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4GB
GDDR6
-
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32GB
GDDR6
-
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Bus Width
64Bit
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Bus Width
256Bit
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Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
128GB/s
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Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
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TDP
50W
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TDP
300W
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-
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Temp
100°C Max
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2x DisplayPort 1.4
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1x HDMI 2.0
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4x Thunderbolt 3 (40Gbps)
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Max Resolution
7680x4320
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Max Resolution
6016x3384
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Max Resolution Refresh Rate
120Hz
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Max Resolution Refresh Rate
60Hz
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Variable Refresh Rate
-
FreeSync
-
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Variable Refresh Rate
-
FreeSync
-
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Display Stream Compression (DSC)
Supported
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Display Stream Compression (DSC)
Supported
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Multi Monitor Support
2
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Multi Monitor Support
6
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Content Protection
HDCP 2.3
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Content Protection
HDCP 2.3
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No Encoders
-
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Model
VCN 3.0
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Codec
-
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AVC (H.264)
HEVC (H.265)
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Model
VCN 3.0
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Model
VCN 3.0
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Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
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VP9
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AVC (H.264)
HEVC (H.265)
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AV1
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Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
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VP9
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AVC (H.264)
HEVC (H.265)
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AV1
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-
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Direct X
12
Direct 3D
12_2
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Direct X
12
Direct 3D
12_2
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OpenGL
4.6
OpenCL
2.2
Vulkan
1.3
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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Shader Model
6.7
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GFX
10.3
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Shader Model
6.5
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GFX
10.3
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1x Fan
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Slots Required
1.0
PCIe Version
4.0
PCIe Lanes
4
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Slots Required
4.0
PCIe Version
4.0
PCIe Lanes
16
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Multi GPU Support
Supported
Type
CrossFire XDMA
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Multi GPU Support
Supported
Type
Infinity Fabric
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