AMD Radeon Instinct MI350X vs AMD Radeon RX 6600 XT
GPU · Specs Compare
Graphics Card
Release Date
Jun 2025
Jul 2021
Generation
Radeon Instinct
Navi II
Type
Professional
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
1000 MHz
1968 MHz
Boost Clock
2200 MHz
2589 MHz
Memory Clock
2000 MHz
2000 MHz
Memory
Memory Size
288GB
8GB
Memory Type
HBM3e
GDDR6
Memory Bus
8192bit
128bit
Bandwidth
8.19TB/s
256.0GB/s
Render Config
Compute Units
256
32
Shading Units
16384
2048
TMUs
1024
128
ROPs
0
64
Tensor Cores
1024
—
L1 Cache
16 KB (per CU)
128 KB per Array
L2 Cache
16 MB
2 MB
L3 Cache
256 MB
32 MB
RT Cores
—
32
Theoretical Performance
Pixel Rate
0 MPixel/s
165.7 GPixel/s
Texture Rate
2252.8 GTexel/s
331.4 GTexel/s
FP16 (half)
72.09 TFLOPS
21.21 TFLOPS
FP32 (float)
72.09 TFLOPS
10.60 TFLOPS
FP64 (double)
36.04 TFLOPS
662.8 GFLOPS
Graphics Processor
GPU Name
MI350 256CU
Navi 23
Architecture
CDNA 4.0
RDNA 2.0
Foundry
TSMC
TSMC
Process Size
3 nm
7 nm
Transistors
185 billion
11.06 billion
Die Size
Unknown
237 mm²
GPU Variant
—
Navi 23 XT(215-130000006)
Board Design
TDP
1000W
160W
Suggested PSU
1400 W
450 W
Outputs
No outputs
1x HDMI 2.13x DisplayPort 1.4a
Power Connectors
None
1x 8-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
2.1
Vulkan
N/A
1.3
Shader Model
N/A
6.7
Benchmark
3DMark Time Spy
—
9,656
3DMark Time Spy Extreme
—
4,399
3DMark Speed Way
—
1,675
Battlefield 5 1080p
—
144
Shadow of the Tomb Raider 2160p
—
38
Cyberpunk 2077 2160p
—
29
Shadow of the Tomb Raider 1440p
—
72
Cyberpunk 2077 1440p
—
36
Shadow of the Tomb Raider 1080p
—
119
Battlefield 5 2160p
—
58
Blender
—
1,213
Cyberpunk 2077 1080p
—
58
Battlefield 5 1440p
—
111
GTA 5 2160p
—
61
GTA 5 1440p
—
82
GTA 5 1080p
—
149
▲ Specs Compare
Data sourced from official specifications and benchmark tests.