XFX Radeon RX 6600 XT Speedster MERC 308 vs ASRock Radeon RX 6900 XT OC Formula
XFX Radeon RX 6600 XT Speedster MERC 308
$379
ASRock Radeon RX 6900 XT OC Formula
$770
|
2048 Shaders
8GB GDDR6
2607MHz
|
5120 Shaders
16GB GDDR6
2475MHz
|
|
Peak AI Performance
21.36 TFLOPS
FP16
|
Peak AI Performance
50.69 TFLOPS
FP16
|
|
FP32
10.68 TFLOPS
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FP32
25.34 TFLOPS
|
|
FP16
21.36 TFLOPS
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FP16
50.69 TFLOPS
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Form Factor
PCIe Card
2.5-Slots
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Form Factor
PCIe Card
3.0-Slots
|
|
TDP
160W
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TDP
390W
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Power Connectors
-
1x 8-Pin
-
-
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Power Connectors
-
3x 8-Pin
-
-
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GB6 OpenCL N/A
0%
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|
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GB6 Metal N/A
0%
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GB6 Metal N/A
0%
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GB6 Vulkan N/A
0%
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GB6 Vulkan N/A
0%
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|
GB5 OpenCL 93,045
30%
|
GB5 OpenCL 181,625
59%
|
|
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 178,805
99%
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|
GB5 Vulkan 66,395
32%
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GB5 Vulkan 125,445
61%
|
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OCT 2020.1 N/A
0%
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OCT 2020.1 N/A
0%
|
|
OCT Metal 215
37%
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OCT Metal 425
72%
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Peak AI
Performance
21.36 TFLOPS
FP16
|
Peak AI
Performance
50.69 TFLOPS
FP16
|
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-
-
-
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-
-
-
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-
-
-
-
-
-
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-
-
-
-
-
-
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FP16
21.36 TFLOPS
-
-
-
-
|
FP16
50.69 TFLOPS
-
-
-
-
|
|
FP32
10.68 TFLOPS
-
-
|
FP32
25.34 TFLOPS
-
-
|
|
FP64
670 GFLOPS
-
|
FP64
1.58 TFLOPS
-
|
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-
-
-
-
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-
-
-
-
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-
-
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-
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-
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-
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-
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-
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-
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-
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Pixel
Fillrate
166.848 GPixel/s
|
Pixel
Fillrate
316.8 GPixel/s
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-
-
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-
-
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Texture
Fillrate
333.696 GTexel/s
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Texture
Fillrate
792 GTexel/s
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Manufacturer
XFX
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Manufacturer
ASRock
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Chip Designer
AMD
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Chip Designer
AMD
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Architecture
RDNA 2
|
Architecture
RDNA 2
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Family
Radeon RX 6000
|
Family
Radeon RX 6000
|
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Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
|
Codename
Sienna Cichlid
Navi 21
Variant
Navi 21 XTXH
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Market Segment
Desktop
|
Market Segment
Desktop
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Release Date
8/11/2021
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Release Date
12/8/2020
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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
237 mm²
-
|
Die Size
520 mm²
-
|
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Transistor Count
11.1 Billion
-
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Transistor Count
26.8 Billion
-
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Transistor Density
46.67M/mm²
-
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Transistor Density
51.56M/mm²
-
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Form
PCIe Card
|
Form
PCIe Card
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Shading Units
2048 Shaders
-
|
Shading Units
5120 Shaders
-
|
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Texture Mapping Units
128 TMUs
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Texture Mapping Units
320 TMUs
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Render Output Units
64 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
32 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
32 CUs
|
Compute Units
80 CUs
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-
-
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-
-
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Graphics Processing Clusters
1 GPC
|
Graphics Processing Clusters
4 GPCs
|
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-
-
2188MHz Base
2607MHz
|
-
-
2125MHz Base
2475MHz
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L0
32KB/WGP
|
L0
32KB/WGP
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L1
-
-
-
128KB/Array
|
L1
-
-
-
128KB/Array
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L2
2MB Shared
|
L2
4MB Shared
|
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L3
32MB Shared
0.83TB/s
|
L3
128MB Shared
1.66TB/s
|
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8GB
GDDR6
-
|
16GB
GDDR6
-
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Bus Width
128Bit
|
Bus Width
256Bit
|
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Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
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Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
512GB/s
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-
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-
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TDP
160W
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TDP
390W
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Temp
110°C Max
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Temp
110°C Max
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-
-
-
-
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-
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3x DisplayPort 1.4
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-
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1x HDMI 2.1
-
-
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-
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-
-
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3x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
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1x HDMI 2.1
-
-
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Max Resolution
7680x4320
|
Max Resolution
7680x4320
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Max Resolution Refresh Rate
120Hz
|
Max Resolution Refresh Rate
120Hz
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Variable Refresh Rate
-
FreeSync
-
|
Variable Refresh Rate
-
FreeSync
-
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Display Stream Compression (DSC)
Supported
|
Display Stream Compression (DSC)
Supported
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Multi Monitor Support
4
|
Multi Monitor Support
4
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Content Protection
HDCP 2.3
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Content Protection
HDCP 2.3
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Model
VCN 3.0
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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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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
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
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Codec
MPEG-1
MPEG-2
MPEG-4
JPEG
VC-1
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
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Direct X
12
Direct 3D
12_2
|
Direct X
12
Direct 3D
12_2
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OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
|
OpenGL
4.6
OpenCL
2.1
Vulkan
1.2
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Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
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Shader Model
6.5
-
-
GFX
10.3
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-
-
-
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-
-
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3x Fans
|
-
-
-
3x Fans
|
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Power Connectors
-
-
-
1x 8-Pin
-
-
-
|
Power Connectors
-
-
-
3x 8-Pin
-
-
-
|
|
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
8
|
Slots Required
3.0
PCIe Version
4.0
PCIe Lanes
16
|
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Multi GPU Support
Supported
Type
Bridgeless
|
Multi GPU Support
Supported
Type
Bridgeless
|
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Height
114 mm (4.49 in)
Width
274 mm (10.79 in)
Depth
50 mm (1.97 in)
|
Height
137 mm (5.39 in)
Width
332 mm (13.07 in)
Depth
61 mm (2.4 in)
|
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