2x Radeon Pro W6900X vs 2x Radeon Pro W6800X

2x Radeon Pro W6900X $5,600
2x Radeon Pro W6800X $1,760
2x 5120 Shaders
2x 32GB GDDR6
2171MHz
2x 3840 Shaders
2x 32GB GDDR6
2087MHz
FP32
44.46 TFLOPS
FP32
32.06 TFLOPS
FP16
88.92 TFLOPS
FP16
64.11 TFLOPS
Form Factor
MPX
2x 4.0-Slots
Form Factor
MPX
2x 4.0-Slots
TDP
300W
TDP
300W
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GB5 OpenCL 120,660
40%
GB5 OpenCL 100,295
33%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal 154,880
86%
GB5 Metal 137,155
76%
GB5 Vulkan - N/A
0%
GB5 Vulkan - N/A
0%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal 865
147%
OCT Metal 625
106%
Manufacturer
Apple
Manufacturer
Apple
Chip Designer
AMD
Chip Designer
AMD
Architecture
RDNA 2
Architecture
RDNA 2
Family
Radeon Pro W
Family
Radeon Pro W
Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XTA
Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XLA
Market Segment
Workstation
Market Segment
Workstation
Release Date
8/3/2021
Release Date
8/3/2021
Foundry
TSMC
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Foundry
TSMC
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Fabrication Node
N7
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Fabrication Node
N7
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Die Size
2x 520 mm²
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Die Size
2x 520 mm²
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Transistor Count
2x 26.8 Billion
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Transistor Count
2x 26.8 Billion
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Transistor Density
51.56M/mm²
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Transistor Density
51.56M/mm²
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Form
MPX
Form
MPX
Shading Units
2x 5120 Shaders
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Shading Units
2x 3840 Shaders
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Texture Mapping Units
2x 320 TMUs
Texture Mapping Units
2x 240 TMUs
Render Output Units
2x 128 ROPs
Render Output Units
2x 96 ROPs
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Ray-Tracing Cores
2x 80 RT-Cores
Ray-Tracing Cores
2x 60 RT-Cores
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Compute Units
2x 80 CUs
Compute Units
2x 60 CUs
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Graphics Processing Clusters
2x 4 GPCs
Graphics Processing Clusters
2x 4 GPCs
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1825MHz Base
2171MHz
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1800MHz Base
2087MHz
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FP16
88.92 TFLOPS
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FP16
64.11 TFLOPS
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FP32
44.46 TFLOPS
FP32
32.06 TFLOPS
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FP64
2.78 TFLOPS
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FP64
2 TFLOPS
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Pixel Fillrate
277.888 GPixel/s
Pixel Fillrate
200.352 GPixel/s
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Texture Fillrate
694.72 GTexel/s
Texture Fillrate
500.88 GTexel/s
L0
32KB/WGP
L0
32KB/WGP
L1
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128KB/Array
L1
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128KB/Array
L2
4MB Shared
L2
4MB Shared
L3
128MB Shared
1.66TB/s
L3
128MB Shared
1.66TB/s
2x 32GB
GDDR6
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2x 32GB
GDDR6
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Bus Width
256Bit
Bus Width
256Bit
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
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TDP
300W
TDP
300W
Temp
100°C Max
Temp
100°C Max
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2x HDMI 2.0
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8x Thunderbolt 3 (40Gbps)
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2x HDMI 2.0
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8x Thunderbolt 3 (40Gbps)
Max Resolution
6016x3384
Max Resolution
6016x3384
Max Resolution Refresh Rate
60Hz
Max Resolution Refresh Rate
60Hz
Variable Refresh Rate
-
FreeSync
-
Variable Refresh Rate
-
FreeSync
-
Display Stream Compression (DSC)
Supported
Display Stream Compression (DSC)
Supported
Multi Monitor Support
6
Multi Monitor Support
6
Content Protection
HDCP 2.3
Content Protection
HDCP 2.3
Model
VCN 3.0
Model
VCN 3.0
Codec
-
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AVC (H.264)
HEVC (H.265)
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Codec
-
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AVC (H.264)
HEVC (H.265)
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Model
VCN 3.0
Model
VCN 3.0
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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Direct X
12
Direct 3D
12_2
Direct X
12
Direct 3D
12_2
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
Shader Model
6.5
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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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Slots Required
4.0
PCIe Version
4.0
PCIe Lanes
16
Slots Required
4.0
PCIe Version
4.0
PCIe Lanes
16
Multi GPU Support
Supported
Type
Infinity Fabric
Multi GPU Support
Supported
Type
Infinity Fabric
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Change Comparison