AMD Radeon R9 M380 Mac Edition vs NVIDIA GeForce GTX 660 Rev. 2
GPU · Specs Compare
Graphics Card
Release Date
May 2015
Sep 2014
Generation
Gem System
GeForce 600
Type
Mobile
Desktop
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Base Clock
900 MHz
980 MHz
Boost Clock
1021 MHz
1032 MHz
Memory Clock
1568 MHz
1502 MHz
Memory
Memory Size
2GB
2GB
Memory Type
GDDR5
GDDR5
Memory Bus
128bit
192bit
Bandwidth
100.4GB/s
144.2GB/s
Render Config
Compute Units
12
—
Shading Units
768
960
TMUs
48
80
ROPs
16
24
L1 Cache
16 KB (per CU)
16 KB (per SMX)
L2 Cache
256 KB
384 KB
Theoretical Performance
Pixel Rate
16.34 GPixel/s
20.64 GPixel/s
Texture Rate
49.01 GTexel/s
82.56 GTexel/s
FP32 (float)
1.568 TFLOPS
1.981 TFLOPS
FP64 (double)
98.02 GFLOPS
82.56 GFLOPS
Graphics Processor
GPU Name
Strato
GK104
GPU Variant
Strato PRO
—
Architecture
GCN 2.0
Kepler
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
2.08 billion
3.54 billion
Die Size
160 mm²
294 mm²
Board Design
TDP
Unknown
140W
Outputs
Portable Device Dependent
2x DVI1x HDMI 1.4a1x DisplayPort 1.2
Suggested PSU
—
300 W
Power Connectors
—
1x 6-pin
Graphics Features
DirectX
12 (12_0)
12 (11_0)
OpenGL
4.6
4.6
OpenCL
2.1
3.0
Vulkan
1.2.170
1.1
Shader Model
6.5
5.1
CUDA
—
3.0
▲ Specs Compare
Data sourced from official specifications and benchmark tests.