AMD Radeon R9 M385X vs NVIDIA GeForce GT 650M Mac Edition
We compared two Mobile platform GPUs: 4GB VRAM Radeon R9 M385X 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 M385X 's Advantages
Released 2 years and 10 months late
Boost Clock1100MHz
More VRAM (4GB vs 512GB)
512 additional rendering cores
NVIDIA GeForce GT 650M Mac Edition 's Advantages
Larger VRAM bandwidth (80.26GB/s vs 76.80GB/s)
Score
Benchmark
FP32 (float)
Radeon R9 M385X
+185%
1.971 TFLOPS
GeForce GT 650M Mac Edition
0.691 TFLOPS
Graphics Card
May 2015
Release Date
Jul 2012
Gem System
Generation
GeForce 600M
Mobile
Type
Mobile
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1000 MHz
Base Clock
-
1100 MHz
Boost Clock
-
1200 MHz
Memory Clock
1254 MHz
Memory
4GB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
76.80GB/s
Bandwidth
80.26GB/s
Render Config
14
Compute Units
-
-
-
-
896
Shading Units
384
56
TMUs
32
16
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
17.60 GPixel/s
Pixel Rate
7.200 GPixel/s
61.60 GTexel/s
Texture Rate
28.80 GTexel/s
-
-
-
1.971 TFLOPS
FP32 (float)
691.2 GFLOPS
123.2 GFLOPS
FP64 (double)
28.80 GFLOPS
Board Design
Unknown
TDP
45W
-
-
-
Portable Device Dependent
Outputs
No outputs
-
-
-
Graphics Processor
Strato
GPU Name
GK107
Strato XT
GPU Variant
N13P-GT-W-A2
GCN 2.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
2.08 billion
Transistors
1.27 billion
160 mm²
Die Size
118 mm²
Graphics Features
12 (12_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
2.1
OpenCL
3.0
1.2.170
Vulkan
1.1
-
CUDA
3.0
6.5
Shader Model
5.1
