AMD Radeon RX 7900 XTX vs XFX Radeon RX 6600 XT Speedster MERC 308
AMD Radeon RX 7900 XTX
$999
XFX Radeon RX 6600 XT Speedster MERC 308
$379
|
6144 Shaders
24GB GDDR6
2500MHz
|
2048 Shaders
8GB GDDR6
2607MHz
|
|
FP32
61.44 TFLOPS
|
FP32
10.68 TFLOPS
|
|
FP16
122.88 TFLOPS
|
FP16
21.36 TFLOPS
|
|
Form Factor
PCIe Card
2.5-Slots
|
Form Factor
PCIe Card
2.5-Slots
|
|
TDP
355W
|
TDP
160W
|
|
Power Connectors
-
2x 8-Pin
-
-
|
Power Connectors
-
1x 8-Pin
-
-
|
|
GB5 OpenCL - N/A
0%
|
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 - N/A
0%
|
GB5 Vulkan 66,395
32%
|
|
OCT 2020.1 - N/A
0%
|
OCT 2020.1 - N/A
0%
|
|
OCT Metal - N/A
0%
|
OCT Metal 215
37%
|
|
Manufacturer
AMD
|
Manufacturer
XFX
|
|
Chip Designer
AMD
|
Chip Designer
AMD
|
|
Architecture
RDNA 3
|
Architecture
RDNA 2
|
|
Family
Radeon RX 7000
|
Family
Radeon RX 6000
|
|
Codename
Plum Bonito
Navi 31
Variant
Navi 31 XTX
|
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
|
|
Market Segment
Desktop
|
Market Segment
Desktop
|
|
Release Date
12/13/2022
|
Release Date
8/11/2021
|
|
Foundry
TSMC
TSMC Memory Cache Die
|
Foundry
TSMC
-
|
|
Fabrication Node
N5
N6 Memory Cache Die
|
Fabrication Node
N7
-
|
|
Die Size
304 mm²
6x 38 mm² Memory Cache Die
|
Die Size
237 mm²
-
|
|
Transistor Count
45.4 Billion
6x 2.1 Billion Memory Cache Die
|
Transistor Count
11.1 Billion
-
|
|
Transistor Density
149.17M/mm²
54.64M/mm² Memory Cache Die
|
Transistor Density
46.67M/mm²
-
|
|
Form
PCIe Card
|
Form
PCIe Card
|
|
Shading Units
6144 Shaders
-
|
Shading Units
2048 Shaders
-
|
|
Texture Mapping Units
384 TMUs
|
Texture Mapping Units
128 TMUs
|
|
Render Output Units
192 ROPs
|
Render Output Units
64 ROPs
|
|
Tensor Cores
192 T-Cores
|
-
-
|
|
Ray-Tracing Cores
96 RT-Cores
|
Ray-Tracing Cores
32 RT-Cores
|
|
-
-
|
-
-
|
|
Compute Units
96 CUs
|
Compute Units
32 CUs
|
|
-
-
|
-
-
|
|
-
-
|
Graphics Processing Clusters
1 GPC
|
|
-
-
1900MHz Base
2500MHz
|
-
-
2188MHz Base
2607MHz
|
|
-
-
|
-
-
|
|
-
-
-
|
-
-
-
|
|
FP16
122.88 TFLOPS
-
|
FP16
21.36 TFLOPS
-
|
|
-
-
-
|
-
-
-
|
|
FP32
61.44 TFLOPS
|
FP32
10.68 TFLOPS
|
|
-
-
|
-
-
|
|
FP64
1.92 TFLOPS
-
|
FP64
0.67 TFLOPS
-
|
|
-
-
|
-
-
|
|
-
-
|
-
-
|
|
Pixel Fillrate
480 GPixel/s
|
Pixel Fillrate
166.848 GPixel/s
|
|
-
-
|
-
-
|
|
Texture Fillrate
960 GTexel/s
|
Texture Fillrate
333.696 GTexel/s
|
|
L0
64KB/WGP
|
L0
32KB/WGP
|
|
L1
-
-
-
256KB/Array
|
L1
-
-
-
128KB/Array
|
|
L2
6MB Shared
|
L2
2MB Shared
|
|
L3
96MB Shared
3.5TB/s
|
L3
32MB Shared
0.83TB/s
|
|
24GB
GDDR6
-
|
8GB
GDDR6
-
|
|
Bus Width
384Bit
|
Bus Width
128Bit
|
|
Clock
2500MHz
Transfer Rate
20GT/s
Bandwidth
960GB/s
|
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
|
|
-
-
-
-
-
-
-
-
-
|
-
-
-
-
-
-
-
-
-
|
|
TDP
355W
|
TDP
160W
|
|
-
-
|
Temp
110°C Max
|
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
2x DisplayPort 2.1
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
1x USB-C + DP
-
|
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3x DisplayPort 1.4
-
-
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
-
-
|
|
Max Resolution
15360x8640
|
Max Resolution
7680x4320
|
|
Max Resolution Refresh Rate
165Hz
|
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
3
|
Multi Monitor Support
4
|
|
Content Protection
HDCP 2.3
|
Content Protection
HDCP 2.3
|
|
Model
VCN 4.0
|
Model
VCN 3.0
|
|
Codec
-
-
-
-
-
-
VP9
-
AVC (H.264)
HEVC (H.265)
-
AV1
-
-
|
Codec
-
-
-
-
-
-
-
-
AVC (H.264)
HEVC (H.265)
-
-
-
-
|
|
Model
VCN 4.0
|
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
6.7
-
-
GFX
11
-
-
-
-
|
Shader Model
6.5
-
-
GFX
10.3
-
-
-
-
|
|
-
-
-
3x Fans
|
-
-
-
3x Fans
|
|
Power Connectors
-
-
-
2x 8-Pin
-
-
-
|
Power Connectors
-
-
-
1x 8-Pin
-
-
-
|
|
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
16
|
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
8
|
|
Multi GPU Support
Supported
Type
CrossFire XDMA
|
Multi GPU Support
Supported
Type
Bridgeless
|
|
Height
135 mm (5.31 in)
Width
287 mm (11.3 in)
Depth
51 mm (2.01 in)
|
Height
114 mm (4.49 in)
Width
274 mm (10.79 in)
Depth
50 mm (1.97 in)
|
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