AMD Radeon RX 6650 XT vs AMD Radeon Instinct MI355X
GPU Specs Compare
Graphics Card
Release Date
May 2022
Jun 2025
Generation
Navi II
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 4.0 x8
PCIe 5.0 x16
Clock Speeds
Base Clock
2055 MHz
1000 MHz
Boost Clock
2635 MHz
2400 MHz
Memory Clock
2190 MHz
2000 MHz
Memory
Memory Size
8GB
288GB
Memory Type
GDDR6
HBM3e
Memory Bus
128bit
8192bit
Bandwidth
280.3GB/s
8.19TB/s
Render Config
Compute Units
32
256
Shading Units
2048
16384
TMUs
128
1024
ROPs
64
0
RT Cores
32
-
L1 Cache
128 KB per Array
32 KB (per CU)
L2 Cache
2 MB
32 MB
L3 Cache
32 MB
256 MB
Tensor Cores
-
1216
Theoretical Performance
Pixel Rate
168.6 GPixel/s
0 MPixel/s
Texture Rate
337.3 GTexel/s
2457.6 GTexel/s
FP16 (half)
21.59 TFLOPS
78.64 TFLOPS
FP32 (float)
10.79 TFLOPS
78.64 TFLOPS
FP64 (double)
674.6 GFLOPS
39.32 TFLOPS
Graphics Processor
GPU Name
Navi 23
MI350 256CU
GPU Variant
Navi 23 KXT(215-130000136)
-
Architecture
RDNA 2.0
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
7 nm
3 nm
Transistors
11.06 billion
185 billion
Die Size
237 mm²
Unknown
Board Design
TDP
176W
1400W
Suggested PSU
450 W
1800 W
Outputs
1x HDMI 2.13x DisplayPort 1.4a
No outputs
Power Connectors
1x 8-pin
None
Graphics Features
DirectX
12 Ultimate (12_2)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.3
N/A
Shader Model
6.5
N/A