NVIDIA A800 PCIe 40 GB vs AMD Radeon RX 7400
GPU · Specs Compare
Graphics Card
Release Date
Nov 2022
Aug 2025
Generation
Ampere
Navi III
Type
AI GPU
Desktop
Bus Interface
PCIe 4.0 x16
PCIe 4.0 x8
Clock Speeds
Base Clock
765 MHz
1452 MHz
Boost Clock
1410 MHz
2300 MHz
Memory Clock
1215 MHz
2250 MHz
Memory
Memory Size
40GB
8GB
Memory Type
HBM2e
GDDR6
Memory Bus
5120bit
128bit
Bandwidth
1555GB/s
288.0GB/s
Render Config
SM Count
108
—
Shading Units
6912
1792
TMUs
432
112
ROPs
160
64
Tensor Cores
432
—
L1 Cache
192 KB (per SM)
128 KB per Array
L2 Cache
40 MB
2 MB
Compute Units
—
28
RT Cores
—
28
L3 Cache
—
64 MB
Theoretical Performance
Pixel Rate
225.6 GPixel/s
147.2 GPixel/s
Texture Rate
609.1 GTexel/s
257.6 GTexel/s
FP16 (half)
77.97 TFLOPS
32.97 TFLOPS
FP32 (float)
19.49 TFLOPS
16.49 TFLOPS
FP64 (double)
9.746 TFLOPS
515.2 GFLOPS
Graphics Processor
GPU Name
GA100
Navi 33
Architecture
Ampere
RDNA 3.0
Foundry
TSMC
TSMC
Process Size
7 nm
6 nm
Transistors
54.2 billion
13.3 billion
Die Size
826 mm²
204 mm²
GPU Variant
—
Navi 33
Board Design
TDP
250W
43W
Suggested PSU
600 W
200 W
Outputs
No outputs
1x HDMI 2.1a3x DisplayPort 2.1
Power Connectors
8-pin EPS
1x 6-pin
Graphics Features
DirectX
N/A
12 Ultimate (12_2)
OpenGL
N/A
4.6
OpenCL
3.0
2.2
Vulkan
N/A
1.3
CUDA
8.0
—
Shader Model
N/A
6.8
▲ Specs Compare
Data sourced from official specifications and benchmark tests.