Radeon RX 6600 vs Radeon RX 6600 XT Speedster MERC 308
Radeon RX 6600
Radeon RX 6600 XT Speedster MERC 308
|
1792 Shaders
8GB GDDR6
2491MHz
|
2048 Shaders
8GB GDDR6
2607MHz
|
|
FP32
8.93 TFLOPS
|
FP32
10.68 TFLOPS
|
|
FP16
17.86 TFLOPS
|
FP16
21.36 TFLOPS
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
2.5-Slots
|
|
TDP
132W
|
TDP
160W
|
|
Power Connectors
-
1x 8-Pin
-
-
|
Power Connectors
-
1x 8-Pin
-
-
|
|
GB5 OpenCL 88,905
29%
|
GB5 OpenCL 93,045
30%
|
|
GB5 CUDA - N/A
0%
|
GB5 CUDA - N/A
0%
|
|
GB5 Metal - N/A
0%
|
GB5 Metal - N/A
0%
|
|
GB5 Vulkan 63,440
31%
|
GB5 Vulkan 66,395
32%
|
|
OCT 2020.1 - N/A
0%
|
OCT 2020.1 - N/A
0%
|
|
OCT Metal 180
31%
|
OCT Metal 215
37%
|
|
Manufacturer
AMD
|
Manufacturer
XFX
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
RDNA 2
|
Architecture
RDNA 2
|
|
Family
Radeon RX 6000
|
Family
Radeon RX 6000
|
|
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XL
|
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
8/11/2021
|
Release Date
8/11/2021
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
N7
-
|
Fabrication Node
N7
-
|
|
Die Size
237 mm²
-
|
Die Size
237 mm²
-
|
|
Transistor Count
11.1 Billion
-
|
Transistor Count
11.1 Billion
-
|
|
Transistor Density
46.67M/mm²
-
|
Transistor Density
46.67M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
1792 Shaders
-
|
Shading Units
2048 Shaders
-
|
|
Texture Mapping Units
112 TMUs
|
Texture Mapping Units
128 TMUs
|
|
Render Output Units
64 ROPs
|
Render Output Units
64 ROPs
|
|
-
-
|
-
-
|
|
Ray-Tracing Cores
28 RT-Cores
|
Ray-Tracing Cores
32 RT-Cores
|
|
-
-
|
-
-
|
|
Compute Units
28 CUs
|
Compute Units
32 CUs
|
|
-
-
|
-
-
|
|
Graphics Processing Clusters
1 GPC
|
Graphics Processing Clusters
1 GPC
|
|
-
-
1626MHz Base
2491MHz
|
-
-
2188MHz Base
2607MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
FP16
17.86 TFLOPS
-
|
FP16
21.36 TFLOPS
-
|
|
-
-
-
|
-
-
-
|
|
FP32
8.93 TFLOPS
|
FP32
10.68 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.56 TFLOPS
-
|
FP64
0.67 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
159.424 GPixel/s
|
Pixel Fillrate
166.848 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
278.992 GTexel/s
|
Texture Fillrate
333.696 GTexel/s
|
|
L0
32KB/WGP
|
L0
32KB/WGP
|
|
L1
-
-
-
128KB/Array
|
L1
-
-
-
128KB/Array
|
|
L2
2MB Shared
|
L2
2MB Shared
|
|
L3
32MB Shared
0.83TB/s
|
L3
32MB Shared
0.83TB/s
|
|
8GB
GDDR6
-
|
8GB
GDDR6
-
|
|
Bus Width
128Bit
|
Bus Width
128Bit
|
|
Clock
1750MHz
Transfer Rate
14GT/s
Bandwidth
224GB/s
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
132W
|
TDP
160W
|
|
Temp
110°C Max
|
Temp
110°C Max
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3x 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
4
|
Multi Monitor Support
4
|
|
Content Protection
HDCP 2.3
|
Content Protection
HDCP 2.3
|
|
Model
VCN 3.0
|
Model
VCN 3.0
|
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
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
2.1
Vulkan
1.2
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
|
Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
|
Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
|
|
-
-
-
1x Fan
|
-
-
-
3x Fans
|
|
Power Connectors
-
-
-
1x 8-Pin
-
-
-
|
Power Connectors
-
-
-
1x 8-Pin
-
-
-
|
|
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
8
|
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
8
|
|
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
114 mm (4.49 in)
Width
274 mm (10.79 in)
Depth
50 mm (1.97 in)
|
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