AMD Radeon RX 7900 XT vs AMD Radeon RX 6600 XT

AMD Radeon RX 7900 XT $899
AMD Radeon RX 6600 XT $379
5376 Shaders
20GB GDDR6
2400MHz
2048 Shaders
8GB GDDR6
2589MHz
FP32
51.61 TFLOPS
FP32
10.61 TFLOPS
FP16
103.22 TFLOPS
FP16
21.21 TFLOPS
Form Factor
PCIe Card
2.5-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
315W
TDP
160W
Power Connectors
-
2x 8-Pin
-
-
Power Connectors
-
1x 8-Pin
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL 92,405
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 65,940
32%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal 215
36%
Manufacturer
AMD
Manufacturer
AMD
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 XT
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
5376 Shaders
-
Shading Units
2048 Shaders
-
Texture Mapping Units
336 TMUs
Texture Mapping Units
128 TMUs
Render Output Units
192 ROPs
Render Output Units
64 ROPs
Tensor Cores
168 T-Cores
-
-
Ray-Tracing Cores
84 RT-Cores
Ray-Tracing Cores
32 RT-Cores
-
-
-
-
Compute Units
84 CUs
Compute Units
32 CUs
-
-
-
-
-
-
Graphics Processing Clusters
1 GPC
-
-
1500MHz Base
2400MHz
-
-
1968MHz Base
2589MHz
-
-
-
-
-
-
-
-
-
-
FP16
103.22 TFLOPS
-
FP16
21.21 TFLOPS
-
-
-
-
-
-
-
FP32
51.61 TFLOPS
FP32
10.61 TFLOPS
-
-
-
-
FP64
1.61 TFLOPS
-
FP64
0.66 TFLOPS
-
-
-
-
-
-
-
-
-
Pixel Fillrate
460.8 GPixel/s
Pixel Fillrate
165.696 GPixel/s
-
-
-
-
Texture Fillrate
806.4 GTexel/s
Texture Fillrate
331.392 GTexel/s
L0
64KB/WGP
L0
32KB/WGP
L1
-
-
-
256KB/Array
L1
-
-
-
128KB/Array
L2
6MB Shared
L2
2MB Shared
L3
80MB Shared
2.9TB/s
L3
32MB Shared
0.83TB/s
20GB
GDDR6
-
8GB
GDDR6
-
Bus Width
320Bit
Bus Width
128Bit
Clock
2500MHz
Transfer Rate
20GT/s
Bandwidth
800GB/s
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
315W
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
-
-
-
1x Fan
Power Connectors
-
-
-
2x 8-Pin
-
-
-
Power Connectors
-
-
-
1x 8-Pin
-
-
-
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
16
Slots Required
2.0
PCIe Version
4.0
PCIe Lanes
8
Multi GPU Support
Supported
Type
CrossFire XDMA
Multi GPU Support
Supported
Type
Bridgeless
Height
110 mm (4.33 in)
Width
276 mm (10.87 in)
Depth
51 mm (2.01 in)
Height
110 mm (4.33 in)
Width
190 mm (7.48 in)
Depth
40 mm (1.57 in)
Change Comparison