AMD Radeon RX 6400 vs GIGABYTE Radeon RX 6800 XT Aorus Master

AMD Radeon RX 6400 $149
GIGABYTE Radeon RX 6800 XT Aorus Master $649
768 Shaders
4GB GDDR6
2321MHz
4608 Shaders
16GB GDDR6
2310MHz
FP32
3.57 TFLOPS
FP32
21.29 TFLOPS
FP16
7.13 TFLOPS
FP16
42.58 TFLOPS
Form Factor
PCIe Card
2.0-Slots
Form Factor
PCIe Card
3.0-Slots
TDP
53W
TDP
300W
-
-
-
-
-
Power Connectors
-
2x 8-Pin
-
-
GB5 OpenCL 32,985
11%
GB5 OpenCL 161,145
53%
GB5 CUDA - N/A
0%
GB5 CUDA - N/A
0%
GB5 Metal - N/A
0%
GB5 Metal 153,505
85%
GB5 Vulkan 24,940
12%
GB5 Vulkan 103,445
50%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal 45
8%
OCT Metal 365
62%
Manufacturer
AMD
Manufacturer
GIGABYTE
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 XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
4/20/2022
Release Date
11/18/2020
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
4608 Shaders
-
Texture Mapping Units
48 TMUs
Texture Mapping Units
288 TMUs
Render Output Units
32 ROPs
Render Output Units
128 ROPs
-
-
-
-
Ray-Tracing Cores
12 RT-Cores
Ray-Tracing Cores
72 RT-Cores
-
-
-
-
Compute Units
12 CUs
Compute Units
72 CUs
-
-
-
-
Graphics Processing Clusters
1 GPC
Graphics Processing Clusters
4 GPCs
-
-
2039MHz Base
2321MHz
-
-
1825MHz Base
2310MHz
-
-
-
-
-
-
-
-
-
-
FP16
7.13 TFLOPS
-
FP16
42.58 TFLOPS
-
-
-
-
-
-
-
FP32
3.57 TFLOPS
FP32
21.29 TFLOPS
-
-
-
-
FP64
0.22 TFLOPS
-
FP64
1.33 TFLOPS
-
-
-
-
-
-
-
-
-
Pixel Fillrate
74.272 GPixel/s
Pixel Fillrate
295.68 GPixel/s
-
-
-
-
Texture Fillrate
111.408 GTexel/s
Texture Fillrate
665.28 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
300W
Temp
110°C Max
Temp
110°C Max
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
1x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
2x 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
-
-
-
2x 8-Pin
-
-
-
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
4
Slots Required
3.0
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
140 mm (5.51 in)
Width
324 mm (12.76 in)
Depth
60 mm (2.36 in)
Change Comparison