AMD Radeon RX 7900 XTX vs AMD Radeon RX 6600

AMD Radeon RX 7900 XTX $999
AMD Radeon RX 6600 $329
6144 Shaders
24GB GDDR6
2500MHz
1792 Shaders
8GB GDDR6
2491MHz
FP32
61.44 TFLOPS
FP32
8.93 TFLOPS
FP16
122.88 TFLOPS
FP16
17.86 TFLOPS
Form Factor
PCIe Card
2.5-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
355W
TDP
132W
Power Connectors
-
2x 8-Pin
-
-
Power Connectors
-
1x 8-Pin
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL 88,905
29%
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 63,440
31%
OCT 2020.1 - N/A
0%
OCT 2020.1 - N/A
0%
OCT Metal - N/A
0%
OCT Metal 180
31%
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 XTX
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XL
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
1792 Shaders
-
Texture Mapping Units
384 TMUs
Texture Mapping Units
112 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
28 RT-Cores
-
-
-
-
Compute Units
96 CUs
Compute Units
28 CUs
-
-
-
-
-
-
Graphics Processing Clusters
1 GPC
-
-
1900MHz Base
2500MHz
-
-
1626MHz Base
2491MHz
-
-
-
-
-
-
-
-
-
-
FP16
122.88 TFLOPS
-
FP16
17.86 TFLOPS
-
-
-
-
-
-
-
FP32
61.44 TFLOPS
FP32
8.93 TFLOPS
-
-
-
-
FP64
1.92 TFLOPS
-
FP64
0.56 TFLOPS
-
-
-
-
-
-
-
-
-
Pixel Fillrate
480 GPixel/s
Pixel Fillrate
159.424 GPixel/s
-
-
-
-
Texture Fillrate
960 GTexel/s
Texture Fillrate
278.992 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
1750MHz
Transfer Rate
14GT/s
Bandwidth
224GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
355W
TDP
132W
-
-
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
135 mm (5.31 in)
Width
287 mm (11.3 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