Radeon RX 6700 XT vs Radeon RX 6600 XT Speedster MERC 308
Radeon RX 6700 XT
Radeon RX 6600 XT Speedster MERC 308
|
2560 Shaders
12GB GDDR6
2581MHz
|
2048 Shaders
8GB GDDR6
2607MHz
|
|
FP32
13.22 TFLOPS
|
FP32
10.68 TFLOPS
|
|
FP16
26.43 TFLOPS
|
FP16
21.36 TFLOPS
|
|
Form Factor
PCIe Card
2.0-Slots
|
Form Factor
PCIe Card
2.5-Slots
|
|
TDP
230W
|
TDP
160W
|
|
Power Connectors
1x 6-Pin
1x 8-Pin
-
-
|
Power Connectors
-
1x 8-Pin
-
-
|
|
GB5 OpenCL 98,870
32%
|
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 70,555
34%
|
GB5 Vulkan 66,395
32%
|
|
OCT 2020.1 - N/A
0%
|
OCT 2020.1 - N/A
0%
|
|
OCT Metal 245
41%
|
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
Navy Flounder
Navi 22
Variant
Navi 22 XT
|
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
3/18/2021
|
Release Date
8/11/2021
|
|
Foundry
TSMC
-
|
Foundry
TSMC
-
|
|
Fabrication Node
N7
-
|
Fabrication Node
N7
-
|
|
Die Size
335 mm²
-
|
Die Size
237 mm²
-
|
|
Transistor Count
17.2 Billion
-
|
Transistor Count
11.1 Billion
-
|
|
Transistor Density
51.34M/mm²
-
|
Transistor Density
46.67M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
2560 Shaders
-
|
Shading Units
2048 Shaders
-
|
|
Texture Mapping Units
160 TMUs
|
Texture Mapping Units
128 TMUs
|
|
Render Output Units
64 ROPs
|
Render Output Units
64 ROPs
|
|
-
-
|
-
-
|
|
Ray-Tracing Cores
40 RT-Cores
|
Ray-Tracing Cores
32 RT-Cores
|
|
-
-
|
-
-
|
|
Compute Units
40 CUs
|
Compute Units
32 CUs
|
|
-
-
|
-
-
|
|
Graphics Processing Clusters
2 GPCs
|
Graphics Processing Clusters
1 GPC
|
|
-
-
2321MHz Base
2581MHz
|
-
-
2188MHz Base
2607MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
FP16
26.43 TFLOPS
-
|
FP16
21.36 TFLOPS
-
|
|
-
-
-
|
-
-
-
|
|
FP32
13.22 TFLOPS
|
FP32
10.68 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
0.83 TFLOPS
-
|
FP64
0.67 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
Pixel Fillrate
165.184 GPixel/s
|
Pixel Fillrate
166.848 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
412.96 GTexel/s
|
Texture Fillrate
333.696 GTexel/s
|
|
L0
32KB/WGP
|
L0
32KB/WGP
|
|
L1
-
-
-
128KB/Array
|
L1
-
-
-
128KB/Array
|
|
L2
3MB Shared
|
L2
2MB Shared
|
|
L3
96MB Shared
1.25TB/s
|
L3
32MB Shared
0.83TB/s
|
|
12GB
GDDR6
-
|
8GB
GDDR6
-
|
|
Bus Width
192Bit
|
Bus Width
128Bit
|
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
384GB/s
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
230W
|
TDP
160W
|
|
Temp
110°C Max
|
Temp
110°C Max
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
1x USB-C + DP
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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
-
-
-
-
|
|
-
-
-
2x Fans
|
-
-
-
3x Fans
|
|
Power Connectors
-
-
1x 6-Pin
1x 8-Pin
-
-
-
|
Power Connectors
-
-
-
1x 8-Pin
-
-
-
|
|
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
16
|
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
267 mm (10.51 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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