AMD Radeon R9 380 vs AMD Radeon R9 390
GPU Specs Compare
Graphics Card
Release Date
Jun 2015
Jun 2015
Generation
Pirate Islands
Pirate Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1500 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
512bit
Bandwidth
176.0GB/s
384.0GB/s
Render Config
Compute Units
28
40
Shading Units
1792
2560
TMUs
112
160
ROPs
32
64
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
1024 KB
Theoretical Performance
Pixel Rate
31.04 GPixel/s
64.00 GPixel/s
Texture Rate
108.6 GTexel/s
160.0 GTexel/s
FP16 (half)
3.476 TFLOPS
-
FP32 (float)
3.476 TFLOPS
5.120 TFLOPS
FP64 (double)
217.3 GFLOPS
640.0 GFLOPS
Graphics Processor
GPU Name
Antigua
Grenada
GPU Variant
Antigua PRO(215-0877000)
Grenada PRO(215-0880030)
Architecture
GCN 3.0
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
6.2 billion
Die Size
366 mm²
438 mm²
Board Design
TDP
190W
275W
Suggested PSU
450 W
600 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
2.0
2.0
Vulkan
1.2
1.2
Shader Model
6.3
6.3
📊 Benchmark
3DMark Time Spy
2,757
3,964
3DMark Time Spy Extreme
1,239
1,931