NVIDIA GeForce GTX 780M Mac Edition vs AMD Radeon R9 M385X
GPU · Specs Compare
Graphics Card
Release Date
Nov 2013
May 2015
Generation
GeForce 700M
Gem System
Type
Mobile
Mobile
Bus Interface
MXM-B (3.0)
PCIe 3.0 x16
Clock Speeds
Base Clock
771 MHz
1000 MHz
Boost Clock
797 MHz
1100 MHz
Memory Clock
1250 MHz
1200 MHz
Memory
Memory Size
4GB
4GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
128bit
Bandwidth
160.0GB/s
76.80GB/s
Render Config
Shading Units
1536
896
TMUs
128
56
ROPs
32
16
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
256 KB
Compute Units
—
14
Theoretical Performance
Pixel Rate
25.50 GPixel/s
17.60 GPixel/s
Texture Rate
102.0 GTexel/s
61.60 GTexel/s
FP32 (float)
2.448 TFLOPS
1.971 TFLOPS
FP64 (double)
102.0 GFLOPS
123.2 GFLOPS
Graphics Processor
GPU Name
GK104
Strato
GPU Variant
N14E-GTX-A2
Strato XT
Architecture
Kepler
GCN 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
2.08 billion
Die Size
294 mm²
160 mm²
Board Design
TDP
122W
Unknown
Outputs
No outputs
Portable Device Dependent
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.1
Vulkan
1.1
1.2.170
CUDA
3.0
—
Shader Model
5.1
6.5
▲ Specs Compare
Data sourced from official specifications and benchmark tests.