AMD Radeon R9 M290X Mac Edition vs AMD Radeon R9 380
GPU · Specs Compare
Graphics Card
Release Date
Nov 2014
Jun 2015
Generation
Crystal System
Pirate Islands
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
850 MHz
—
Boost Clock
975 MHz
—
Memory Clock
1365 MHz
1375 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
174.7GB/s
176.0GB/s
Render Config
Compute Units
16
28
Shading Units
1024
1792
TMUs
64
112
ROPs
32
32
L1 Cache
16 KB (per CU)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Theoretical Performance
Pixel Rate
31.20 GPixel/s
31.04 GPixel/s
Texture Rate
62.40 GTexel/s
108.6 GTexel/s
FP32 (float)
1.997 TFLOPS
3.476 TFLOPS
FP64 (double)
124.8 GFLOPS
217.3 GFLOPS
FP16 (half)
—
3.476 TFLOPS
Graphics Processor
GPU Name
Pitcairn
Antigua
GPU Variant
Pitcairn PRO(215-0828062)
Antigua PRO(215-0877000)
Architecture
GCN 1.0
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.8 billion
5 billion
Die Size
212 mm²
366 mm²
Board Design
TDP
80W
190W
Outputs
No outputs
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Power Connectors
None
2x 6-pin
Suggested PSU
—
450 W
Graphics Features
DirectX
12 (11_1)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
1.2
2.0
Vulkan
1.2
1.2
Shader Model
5.1
6.3
Benchmark
3DMark Time Spy
—
2,757
3DMark Time Spy Extreme
—
1,239
▲ Specs Compare
Data sourced from official specifications and benchmark tests.