NVIDIA GeForce GTX 660M Mac Edition vs AMD Radeon R5 A320
We compared two Mobile platform GPUs: 512MB VRAM GeForce GTX 660M Mac Edition and 1024MB VRAM Radeon R5 A320 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 16.00GB/s)
64 additional rendering cores
AMD Radeon R5 A320 's Advantages
Released 1 years and 9 months late
Boost Clock825MHz
More VRAM (1024GB vs 512GB)
Score
Benchmark
FP32 (float)
GeForce GTX 660M Mac Edition
+38%
0.73 TFLOPS
Radeon R5 A320
0.528 TFLOPS
Graphics Card
Apr 2013
Release Date
Jan 2015
GeForce 600M
Generation
All-In-One
Mobile
Type
Mobile
MXM-B (3.0)
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
750 MHz
-
Boost Clock
825 MHz
1250 MHz
Memory Clock
1000 MHz
Memory
512MB
Memory Size
1024MB
GDDR5
Memory Type
DDR3
128bit
Memory Bus
64bit
80.00GB/s
Bandwidth
16.00GB/s
Render Config
-
Compute Units
5
-
-
-
384
Shading Units
320
32
TMUs
20
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
128 KB
-
-
-
Theoretical Performance
7.600 GPixel/s
Pixel Rate
6.600 GPixel/s
30.40 GTexel/s
Texture Rate
16.50 GTexel/s
-
-
-
729.6 GFLOPS
FP32 (float)
528.0 GFLOPS
30.40 GFLOPS
FP64 (double)
-
Board Design
50W
TDP
Unknown
-
-
-
No outputs
Outputs
Portable Device Dependent
None
Power Connectors
-
Graphics Processor
GK107
GPU Name
Jet
-
GPU Variant
Jet PRO
(216-0856040)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.69 billion
118 mm²
Die Size
56 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)
