AMD Radeon RX 460 vs AMD Radeon Instinct MI455X
GPU Specs Compare
Graphics Card
Release Date
Aug 2016
Jul 2026
Generation
Arctic Islands
Radeon Instinct
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x8
PCIe 6.0 x16
Clock Speeds
Base Clock
1090 MHz
1000 MHz
Boost Clock
1200 MHz
2400 MHz
Memory Clock
1750 MHz
1900 MHz
Memory
Memory Size
2GB
432GB
Memory Type
GDDR5
HBM4
Memory Bus
128bit
24576bit
Bandwidth
112.0GB/s
23.3TB/s
Render Config
Compute Units
14
256
Shading Units
896
32768
TMUs
56
1024
ROPs
16
0
L1 Cache
16 KB (per CU)
32 KB (per CU)
L2 Cache
1024 KB
192 MB
Theoretical Performance
Pixel Rate
19.20 GPixel/s
0 MPixel/s
Texture Rate
67.20 GTexel/s
2457.6 GTexel/s
FP16 (half)
2.150 TFLOPS
157.3 TFLOPS
FP32 (float)
2.150 TFLOPS
157.3 TFLOPS
FP64 (double)
134.4 GFLOPS
2.458 TFLOPS
Graphics Processor
GPU Name
Baffin
MI450 256CU
GPU Variant
Baffin PRO
-
Architecture
GCN 4.0
CDNA 5.0
Foundry
GlobalFoundries
TSMC
Process Size
14 nm
2 nm
Transistors
3 billion
320 billion
Die Size
123 mm²
Unknown
Board Design
TDP
75W
2300W
Suggested PSU
250 W
2700 W
Outputs
1x DVI1x HDMI 2.0b1x DisplayPort 1.4a
No outputs
Power Connectors
None
None
Graphics Features
DirectX
12 (12_0)
N/A
OpenGL
4.6
N/A
OpenCL
2.1
3.0
Vulkan
1.2
N/A
Shader Model
6.4
N/A
📊 Benchmark
3DMark Time Spy
1,754
-
3DMark Time Spy Extreme
776
-
Shadow of the Tomb Raider 2160p
3
-
Shadow of the Tomb Raider 1440p
12
-
Shadow of the Tomb Raider 1080p
22
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