AMD Radeon RX 7800 XT vs AMD Radeon RX 6600 XT

AMD Radeon RX 7800 XT $499
AMD Radeon RX 6600 XT $379
3840 Shaders
16GB GDDR6
2430MHz
2048 Shaders
8GB GDDR6
2589MHz
FP32
37.32 TFLOPS
FP32
10.61 TFLOPS
FP16
74.65 TFLOPS
FP16
21.21 TFLOPS
Form Factor
PCIe Card
2.5-Slots
Form Factor
PCIe Card
2.0-Slots
TDP
263W
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
Wheat Nas
Navi 32
Variant
Navi 32
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
8/25/2023
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
200 mm²
4x 38 mm² Memory Cache Die
Die Size
237 mm²
-
Transistor Count
28.1 Billion
4x 2.1 Billion Memory Cache Die
Transistor Count
11.1 Billion
-
Transistor Density
140.50M/mm²
54.64M/mm² Memory Cache Die
Transistor Density
46.67M/mm²
-
Form
PCIe Card
Form
PCIe Card
Shading Units
3840 Shaders
-
Shading Units
2048 Shaders
-
Texture Mapping Units
240 TMUs
Texture Mapping Units
128 TMUs
Render Output Units
96 ROPs
Render Output Units
64 ROPs
Tensor Cores
120 T-Cores
-
-
Ray-Tracing Cores
60 RT-Cores
Ray-Tracing Cores
32 RT-Cores
-
-
-
-
Compute Units
60 CUs
Compute Units
32 CUs
-
-
-
-
-
-
Graphics Processing Clusters
1 GPC
-
-
1800MHz Base
2430MHz
-
-
1968MHz Base
2589MHz
-
-
-
-
-
-
-
-
-
-
FP16
74.65 TFLOPS
-
FP16
21.21 TFLOPS
-
-
-
-
-
-
-
FP32
37.32 TFLOPS
FP32
10.61 TFLOPS
-
-
-
-
FP64
1.17 TFLOPS
-
FP64
0.66 TFLOPS
-
-
-
-
-
-
-
-
-
Pixel Fillrate
233.28 GPixel/s
Pixel Fillrate
165.696 GPixel/s
-
-
-
-
Texture Fillrate
583.2 GTexel/s
Texture Fillrate
331.392 GTexel/s
L0
64KB/WGP
L0
32KB/WGP
L1
-
-
-
256KB/Array
L1
-
-
-
128KB/Array
L2
4MB Shared
L2
2MB Shared
L3
64MB Shared
2.25TB/s
L3
32MB Shared
0.83TB/s
16GB
GDDR6
-
8GB
GDDR6
-
Bus Width
256Bit
Bus Width
128Bit
Clock
2425MHz
Transfer Rate
19.4GT/s
Bandwidth
620.8GB/s
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
263W
TDP
160W
-
-
Temp
110°C Max
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
3x DisplayPort 2.1
-
-
-
-
-
-
-
-
-
1x HDMI 2.1
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
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
-
-
-
-
-
-
-
2x 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
111 mm (4.37 in)
Width
267 mm (10.51 in)
Depth
50 mm (1.97 in)
Height
110 mm (4.33 in)
Width
190 mm (7.48 in)
Depth
40 mm (1.57 in)
Change Comparison