AMD Radeon R9 390X vs NVIDIA RTX A400
GPU · Specs Compare
Graphics Card
Release Date
Jun 2015
Apr 2024
Generation
Pirate Islands
Quadro Ampere(Ax000)
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 4.0 x8
Clock Speeds
Memory Clock
1500 MHz
1500 MHz
Base Clock
—
1417 MHz
Boost Clock
—
1762 MHz
Memory
Memory Size
8GB
4GB
Memory Type
GDDR5
GDDR6
Memory Bus
512bit
64bit
Bandwidth
384.0GB/s
96.00GB/s
Render Config
Compute Units
44
—
Shading Units
2816
768
TMUs
176
24
ROPs
64
16
L1 Cache
16 KB (per CU)
128 KB (per SM)
L2 Cache
1024 KB
2 MB
SM Count
—
6
Tensor Cores
—
24
RT Cores
—
6
Theoretical Performance
Pixel Rate
67.20 GPixel/s
28.19 GPixel/s
Texture Rate
184.8 GTexel/s
42.29 GTexel/s
FP32 (float)
5.914 TFLOPS
2.706 TFLOPS
FP64 (double)
739.2 GFLOPS
42.29 GFLOPS
FP16 (half)
—
2.706 TFLOPS
Graphics Processor
GPU Name
Grenada
GA107
GPU Variant
Grenada XT(215-0880004)
—
Architecture
GCN 2.0
Ampere
Foundry
TSMC
Samsung
Process Size
28 nm
8 nm
Transistors
6.2 billion
8.7 billion
Die Size
438 mm²
200 mm²
Board Design
TDP
275W
50W
Suggested PSU
600 W
250 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
4x mini-DisplayPort 1.4a
Power Connectors
1x 6-pin + 1x 8-pin
None
Graphics Features
DirectX
12 (12_0)
12 Ultimate (12_2)
OpenGL
4.6
4.6
OpenCL
2.0
3.0
Vulkan
1.2
1.3
Shader Model
6.3
6.8
CUDA
—
8.6
▲ Specs Compare
Data sourced from official specifications and benchmark tests.