AMD Radeon R9 270X vs AMD Radeon Instinct MI355X
GPU · Specs Compare
Graphics Card
Release Date
Oct 2013
Jun 2025
Generation
Volcanic Islands
Radeon Instinct
Type
Desktop
Professional
Bus Interface
PCIe 3.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1000 MHz
1000 MHz
Boost Clock
1050 MHz
2400 MHz
Memory Clock
1400 MHz
2000 MHz
Memory
Memory Size
2GB
288GB
Memory Type
GDDR5
HBM3e
Memory Bus
256bit
8192bit
Bandwidth
179.2GB/s
8.19TB/s
Render Config
Compute Units
20
256
Shading Units
1280
16384
TMUs
80
1024
ROPs
32
0
L1 Cache
16 KB (per CU)
32 KB (per CU)
L2 Cache
512 KB
32 MB
Tensor Cores
—
1216
L3 Cache
—
256 MB
Theoretical Performance
Pixel Rate
33.60 GPixel/s
0 MPixel/s
Texture Rate
84.00 GTexel/s
2457.6 GTexel/s
FP32 (float)
2.688 TFLOPS
78.64 TFLOPS
FP64 (double)
168.0 GFLOPS
39.32 TFLOPS
FP16 (half)
—
78.64 TFLOPS
Graphics Processor
GPU Name
Curacao
MI350 256CU
GPU Variant
Curacao XT(215-0848004)
—
Architecture
GCN 1.0
CDNA 4.0
Foundry
TSMC
TSMC
Process Size
28 nm
3 nm
Transistors
2.8 billion
185 billion
Die Size
212 mm²
Unknown
Board Design
TDP
180W
1400W
Suggested PSU
450 W
1800 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
No outputs
Power Connectors
2x 6-pin
None
Graphics Features
DirectX
12 (11_1)
N/A
OpenGL
4.6
N/A
OpenCL
1.2
3.0
Vulkan
1.2
N/A
Shader Model
5.1
N/A
Benchmark
3DMark Time Spy
1,769
—
▲ Specs Compare
Data sourced from official specifications and benchmark tests.