AMD Radeon R9 M390 Mac Edition vs NVIDIA GeForce GT 650M Mac Edition
We compared two Mobile platform GPUs: 2GB VRAM Radeon R9 M390 Mac Edition and 512MB VRAM GeForce GT 650M Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon R9 M390 Mac Edition 's Advantages
Released 2 years and 10 months late
More VRAM (2GB vs 512GB)
Larger VRAM bandwidth (174.7GB/s vs 80.26GB/s)
640 additional rendering cores
NVIDIA GeForce GT 650M Mac Edition 's Advantages
Lower TDP (45W vs 80W)
Score
Benchmark
FP32 (float)
Radeon R9 M390 Mac Edition
+183%
1.962 TFLOPS
GeForce GT 650M Mac Edition
0.691 TFLOPS
Graphics Card
May 2015
Release Date
Jul 2012
Crystal System
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1365 MHz
Memory Clock
1254 MHz
Memory
2GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
128bit
174.7GB/s
Bandwidth
80.26GB/s
Render Config
16
Compute Units
-
-
-
-
1024
Shading Units
384
64
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
30.66 GPixel/s
Pixel Rate
7.200 GPixel/s
61.31 GTexel/s
Texture Rate
28.80 GTexel/s
-
-
-
1.962 TFLOPS
FP32 (float)
691.2 GFLOPS
122.6 GFLOPS
FP64 (double)
28.80 GFLOPS
Board Design
80W
TDP
45W
-
-
-
No outputs
Outputs
No outputs
None
Power Connectors
-
Graphics Processor
Pitcairn
GPU Name
GK107
Pitcairn PRO
(215-0828062)
GPU Variant
N13P-GT-W-A2
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.8 billion
Transistors
1.27 billion
212 mm²
Die Size
118 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
5.1
Shader Model
5.1
