AMD Radeon RX 7900 GRE vs MSI Radeon RX 6600 XT MECH 2X OC

AMD Radeon RX 7900 GRE $549
MSI Radeon RX 6600 XT MECH 2X OC $379
5120 Shaders
16GB GDDR6
2245MHz
2048 Shaders
8GB GDDR6
2602MHz
FP32
45.98 TFLOPS
FP32
10.66 TFLOPS
FP16
91.96 TFLOPS
FP16
21.32 TFLOPS
Form Factor
PCIe Card
2.5-Slots
Form Factor
PCIe Card
2.3-Slots
TDP
260W
TDP
160W
Power Connectors
-
2x 8-Pin
-
-
Power Connectors
-
1x 8-Pin
-
-
GB5 OpenCL - N/A
0%
GB5 OpenCL 92,865
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 66,270
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
MSI
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 XL
Codename
Dimgrey Cavefish
Navi 23
Variant
Navi 23 XT
Market Segment
Desktop
Market Segment
Desktop
Release Date
7/27/2023
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
304 mm²
4x 38 mm² Memory Cache Die
Die Size
237 mm²
-
Transistor Count
45.4 Billion
4x 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
5120 Shaders
-
Shading Units
2048 Shaders
-
Texture Mapping Units
320 TMUs
Texture Mapping Units
128 TMUs
Render Output Units
160 ROPs
Render Output Units
64 ROPs
Tensor Cores
160 T-Cores
-
-
Ray-Tracing Cores
80 RT-Cores
Ray-Tracing Cores
32 RT-Cores
-
-
-
-
Compute Units
80 CUs
Compute Units
32 CUs
-
-
-
-
-
-
Graphics Processing Clusters
1 GPC
-
-
1880MHz Base
2245MHz
-
-
2188MHz Base
2602MHz
-
-
-
-
-
-
-
-
-
-
FP16
91.96 TFLOPS
-
FP16
21.32 TFLOPS
-
-
-
-
-
-
-
FP32
45.98 TFLOPS
FP32
10.66 TFLOPS
-
-
-
-
FP64
1.44 TFLOPS
-
FP64
0.67 TFLOPS
-
-
-
-
-
-
-
-
-
Pixel Fillrate
359.2 GPixel/s
Pixel Fillrate
166.528 GPixel/s
-
-
-
-
Texture Fillrate
718.4 GTexel/s
Texture Fillrate
333.056 GTexel/s
L0
64KB/WGP
L0
32KB/WGP
L1
-
-
-
256KB/Array
L1
-
-
-
128KB/Array
L2
6MB 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
2250MHz
Transfer Rate
18GT/s
Bandwidth
576GB/s
Clock
2000MHz
Transfer Rate
16GT/s
Bandwidth
256GB/s
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
-
TDP
260W
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
-
-
-
2x Fans
Power Connectors
-
-
-
2x 8-Pin
-
-
-
Power Connectors
-
-
-
1x 8-Pin
-
-
-
Slots Required
2.5
PCIe Version
4.0
PCIe Lanes
16
Slots Required
2.3
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
125 mm (4.92 in)
Width
235 mm (9.25 in)
Depth
46 mm (1.81 in)
Change Comparison