Product Compare

NVIDIA GeForce RTX 4070 vs AMD Radeon Instinct MI455X

GPU GPU
Graphics Card
Release Date Apr 2023 Jul 2026
Generation GeForce 40 Radeon Instinct
Type Desktop Desktop
Bus Interface PCIe 4.0 x16 PCIe 6.0 x16
Clock Speeds
Base Clock 1920 MHz 1000 MHz
Boost Clock 2475 MHz 2400 MHz
Memory Clock 1313 MHz 1900 MHz
Memory
Memory Size 12GB 432GB
Memory Type GDDR6X HBM4
Memory Bus 192bit 24576bit
Bandwidth 504.2GB/s 23.3TB/s
Render Config
SM Count 46
Shading Units 5888 32768
TMUs 184 1024
ROPs 64 0
Tensor Cores 184
RT Cores 46
L1 Cache 128 KB (per SM) 32 KB (per CU)
L2 Cache 36 MB 192 MB
Compute Units 256
Theoretical Performance
Pixel Rate 158.4 GPixel/s 0 MPixel/s
Texture Rate 455.4 GTexel/s 2457.6 GTexel/s
FP16 (half) 29.15 TFLOPS 157.3 TFLOPS
FP32 (float) 29.15 TFLOPS 157.3 TFLOPS
FP64 (double) 455.4 GFLOPS 2.458 TFLOPS
Graphics Processor
GPU Name AD104 MI450 256CU
GPU Variant AD104-250-A1
Architecture Ada Lovelace CDNA 5.0
Foundry TSMC TSMC
Process Size 5 nm 2 nm
Transistors 35.8 billion 320 billion
Die Size 295 mm² Unknown
Board Design
TDP 200W 2300W
Suggested PSU 550 W 2700 W
Outputs 1x HDMI 2.13x DisplayPort 1.4a No outputs
Power Connectors 1x 16-pin None
Graphics Features
DirectX 12 Ultimate (12_2) N/A
OpenGL 4.6 N/A
OpenCL 3.0 3.0
Vulkan 1.3 N/A
CUDA 8.9
Shader Model 6.7 N/A