NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon R7 M380
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 4GB VRAM Radeon R7 M380 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 660M Mac Edition 's Advantages
Larger VRAM bandwidth (80.00GB/s vs 32.00GB/s)
AMD Radeon R7 M380 's Advantages
Released 2 years and 1 months late
Boost Clock915MHz
More VRAM (4GB vs 512GB)
256 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
0.73 TFLOPS
Radeon R7 M380
+60%
1.171 TFLOPS
Graphics Card
Apr 2013
Release Date
May 2015
GeForce 600M
Generation
Gem System
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
Base Clock
900 MHz
-
Boost Clock
915 MHz
1250 MHz
Memory Clock
1000 MHz
Memory
512MB
Memory Size
4GB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
128bit
80.00GB/s
Bandwidth
32.00GB/s
Render Config
-
Compute Units
10
-
-
-
384
Shading Units
640
32
TMUs
40
16
ROPs
16
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
14.64 GPixel/s
30.40 GTexel/s
Texture Rate
36.60 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
1171 GFLOPS
30.40 GFLOPS
FP64 (double)
73.20 GFLOPS
Board Design
50W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
GK107
GPU Name
Tropo
-
GPU Variant
Tropo XT
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
1.5 billion
118 mm²
Die Size
123 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
2.1 (1.2)
1.1
Vulkan
1.2.170
3.0
CUDA
-
5.1
Shader Model
6.5 (5.1)
