AMD Radeon R9 380 OEM vs AMD Radeon R9 280
GPU Specs Compare
Graphics Card
Release Date
May 2015
Mar 2014
Generation
Pirate Islands
Volcanic Islands
Type
Desktop
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1375 MHz
1250 MHz
Base Clock
-
827 MHz
Boost Clock
-
933 MHz
Memory
Memory Size
4GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
384bit
Bandwidth
176.0GB/s
240.0GB/s
Render Config
Compute Units
28
28
Shading Units
1792
1792
TMUs
112
112
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
768 KB
Theoretical Performance
Pixel Rate
29.38 GPixel/s
29.86 GPixel/s
Texture Rate
102.8 GTexel/s
104.5 GTexel/s
FP16 (half)
3.290 TFLOPS
-
FP32 (float)
3.290 TFLOPS
3.344 TFLOPS
FP64 (double)
205.6 GFLOPS
836.0 GFLOPS
Graphics Processor
GPU Name
Antigua
Tahiti
GPU Variant
Antigua PRO(215-0877000)
Tahiti PRO3(215-0821330)
Architecture
GCN 3.0
GCN 1.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
5 billion
4.313 billion
Die Size
366 mm²
352 mm²
Board Design
TDP
190W
200W
Suggested PSU
450 W
550 W
Outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
1x DVI2x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
2x 6-pin
1x 6-pin + 1x 8-pin
Graphics Features
DirectX
12 (12_0)
12 (11_1)
OpenGL
4.6
4.6
OpenCL
2.0
1.2
Vulkan
1.2
1.2
Shader Model
6.3
5.1