NVIDIA RTX A400 vs AMD Radeon R9 390
GPU · Specs Compare
Graphics Card
Release Date
Apr 2024
Jun 2015
Generation
Quadro Ampere(Ax000)
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 4.0 x8
PCIe 3.0 x16
Clock Speeds
Base Clock
1417 MHz
—
Boost Clock
1762 MHz
—
Memory Clock
1500 MHz
1500 MHz
Memory
Memory Size
4GB
8GB
Memory Type
GDDR6
GDDR5
Memory Bus
64bit
512bit
Bandwidth
96.00GB/s
384.0GB/s
Render Config
SM Count
6
—
Shading Units
768
2560
TMUs
24
160
ROPs
16
64
Tensor Cores
24
—
RT Cores
6
—
L1 Cache
128 KB (per SM)
16 KB (per CU)
L2 Cache
2 MB
1024 KB
Compute Units
—
40
Theoretical Performance
Pixel Rate
28.19 GPixel/s
64.00 GPixel/s
Texture Rate
42.29 GTexel/s
160.0 GTexel/s
FP16 (half)
2.706 TFLOPS
—
FP32 (float)
2.706 TFLOPS
5.120 TFLOPS
FP64 (double)
42.29 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
GA107
Grenada
Architecture
Ampere
GCN 2.0
Foundry
Samsung
TSMC
Process Size
8 nm
28 nm
Transistors
8.7 billion
6.2 billion
Die Size
200 mm²
438 mm²
GPU Variant
—
Grenada PRO(215-0880030)
Board Design
TDP
50W
275W
Suggested PSU
250 W
600 W
Outputs
4x mini-DisplayPort 1.4a
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 Ultimate (12_2)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.3
1.2
CUDA
8.6
—
Shader Model
6.8
6.3
Benchmark
3DMark Time Spy
—
3,964
3DMark Time Spy Extreme
—
1,931
▲ Specs Compare
Data sourced from official specifications and benchmark tests.