AMD Radeon Instinct MI300A vs NVIDIA GeForce RTX 5080
GPU · Specs Compare
Graphics Card
Release Date
Dec 2023
Jan 2025
Generation
Radeon Instinct
GeForce 50
Type
Desktop
Desktop
Bus Interface
PCIe 5.0 x16
PCIe 5.0 x16
Clock Speeds
Base Clock
1000 MHz
2295 MHz
Boost Clock
2100 MHz
2617 MHz
Memory Clock
2525 MHz
1875 MHz
Memory
Memory Size
192GB
16GB
Memory Type
HBM3
GDDR7
Memory Bus
8192bit
256bit
Bandwidth
10.3TB/s
960.0GB/s
Render Config
Compute Units
304
—
Shading Units
19456
10752
TMUs
1216
336
ROPs
0
112
Tensor Cores
1216
336
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
16 MB
64 MB
L3 Cache
256 MB
—
SM Count
—
84
RT Cores
—
84
Theoretical Performance
Pixel Rate
0 MPixel/s
293.1 GPixel/s
Texture Rate
2554 GTexel/s
879.3 GTexel/s
FP16 (half)
653.7 TFLOPS
56.28 TFLOPS
FP32 (float)
81.72 TFLOPS
56.28 TFLOPS
FP64 (double)
81.72 TFLOPS
879.3 GFLOPS
Graphics Processor
GPU Name
Aqua Vanjaram
GB203
Architecture
CDNA 3.0
Blackwell 2.0
Foundry
TSMC
TSMC
Process Size
5 nm
5 nm
Transistors
153 billion
45.6 billion
Die Size
1017 mm²
378 mm²
GPU Variant
—
GB203-400-A1
Board Design
TDP
750W
360W
Suggested PSU
1150 W
750 W
Outputs
No outputs
1x HDMI 2.1b3x DisplayPort 2.1b
Power Connectors
None
1x 16-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
3.0
Vulkan
N/A
1.4
Shader Model
N/A
6.8
CUDA
—
12.0
Benchmark
3DMark Time Spy
—
33,116
3DMark Time Spy Extreme
—
16,627
3DMark Speed Way
—
9,296
▲ Specs Compare
Data sourced from official specifications and benchmark tests.