AMD Radeon RX 6400 vs PowerColor Radeon RX 6900 XT Red Devil
AMD Radeon RX 6400
$149
PowerColor Radeon RX 6900 XT Red Devil
$999
|
768 Shaders
4GB GDDR6
2321MHz
|
5120 Shaders
16GB GDDR6
2340MHz
|
|
FP32
3.57 TFLOPS
|
FP32
23.96 TFLOPS
|
|
FP16
7.13 TFLOPS
|
FP16
47.92 TFLOPS
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
3.1-Slots
|
|
TDP
53W
|
TDP
390W
|
|
-
-
-
-
-
|
Power Connectors
-
3x 8-Pin
-
-
|
|
GB5 OpenCL 32,985
11%
|
GB5 OpenCL 171,720
56%
|
|
GB5 CUDA - N/A
0%
|
GB5 CUDA - N/A
0%
|
|
GB5 Metal - N/A
0%
|
GB5 Metal 169,050
94%
|
|
GB5 Vulkan 24,940
12%
|
GB5 Vulkan 118,605
58%
|
|
OCT 2020.1 - N/A
0%
|
OCT 2020.1 - N/A
0%
|
|
OCT Metal 45
8%
|
OCT Metal 405
68%
|
|
Manufacturer
AMD
|
Manufacturer
PowerColor
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
RDNA 2
|
Architecture
RDNA 2
|
|
Family
Radeon RX 6000
|
Family
Radeon RX 6000
|
|
Codename
Beige Goby
Navi 24
Variant
Navi 24 XL
|
Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XTX
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
4/20/2022
|
Release Date
12/8/2020
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
N6
-
|
Fabrication Node
N7
-
|
|
Die Size
107 mm²
-
|
Die Size
520 mm²
-
|
|
Transistor Count
5.4 Billion
-
|
Transistor Count
26.8 Billion
-
|
|
Transistor Density
50.47M/mm²
-
|
Transistor Density
51.56M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
768 Shaders
-
|
Shading Units
5120 Shaders
-
|
|
Texture Mapping Units
48 TMUs
|
Texture Mapping Units
320 TMUs
|
|
Render Output Units
32 ROPs
|
Render Output Units
128 ROPs
|
|
-
-
|
-
-
|
|
Ray-Tracing Cores
12 RT-Cores
|
Ray-Tracing Cores
80 RT-Cores
|
|
-
-
|
-
-
|
|
Compute Units
12 CUs
|
Compute Units
80 CUs
|
|
-
-
|
-
-
|
|
Graphics Processing Clusters
1 GPC
|
Graphics Processing Clusters
4 GPCs
|
|
-
-
2039MHz Base
2321MHz
|
-
-
1825MHz Base
2340MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
FP16
7.13 TFLOPS
-
|
FP16
47.92 TFLOPS
-
|
|
-
-
-
|
-
-
-
|
|
FP32
3.57 TFLOPS
|
FP32
23.96 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.22 TFLOPS
-
|
FP64
1.5 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel Fillrate
74.272 GPixel/s
|
Pixel Fillrate
299.52 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
111.408 GTexel/s
|
Texture Fillrate
748.8 GTexel/s
|
|
L0
32KB/WGP
|
L0
32KB/WGP
|
|
L1
-
-
-
128KB/Array
|
L1
-
-
-
128KB/Array
|
|
L2
1MB Shared
|
L2
4MB Shared
|
|
L3
8MB Shared
0.21TB/s
|
L3
128MB Shared
1.66TB/s
|
|
4GB
GDDR6
-
|
16GB
GDDR6
-
|
|
Bus Width
64Bit
|
Bus Width
256Bit
|
|
Clock
1750MHz
Transfer Rate
14GT/s
Bandwidth
112GB/s
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
53W
|
TDP
390W
|
|
Temp
110°C Max
|
Temp
110°C Max
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
-
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
-
-
|
|
Max Resolution
7680x4320
|
Max Resolution
7680x4320
|
|
Max Resolution Refresh Rate
120Hz
|
Max Resolution Refresh Rate
120Hz
|
|
Variable Refresh Rate
-
FreeSync
-
|
Variable Refresh Rate
-
FreeSync
-
|
|
Display Stream Compression (DSC)
Supported
|
Display Stream Compression (DSC)
Supported
|
|
Multi Monitor Support
2
|
Multi Monitor Support
4
|
|
Content Protection
HDCP 2.3
|
Content Protection
HDCP 2.3
|
|
No Encoders
-
|
Model
VCN 3.0
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
|
Model
VCN 3.0
|
Model
VCN 3.0
|
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
|
Direct X
12
Direct 3D
12_2
|
Direct X
12
Direct 3D
12_2
|
|
OpenGL
4.6
OpenCL
2.2
Vulkan
1.3
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
|
Shader Model
6.6
-
-
GFX
10.3
-
-
-
-
|
Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
|
|
-
-
-
1x Fan
|
-
-
-
3x Fans
|
|
-
-
-
-
-
-
-
-
|
Power Connectors
-
-
-
3x 8-Pin
-
-
-
|
|
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
4
|
Slots Required
3.1
PCIe Version
4.0
PCIe Lanes
16
|
|
Multi GPU Support
Supported
Type
Bridgeless
|
Multi GPU Support
Supported
Type
Bridgeless
|
|
Height
110 mm (4.33 in)
Width
190 mm (7.48 in)
Depth
40 mm (1.57 in)
|
Height
135 mm (5.31 in)
Width
320 mm (12.6 in)
Depth
62 mm (2.44 in)
|
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