NVIDIA GeForce GTX 680MX Mac Edition vs NVIDIA GeForce GTX 970M
GPU · Specs Compare
Graphics Card
Release Date
Oct 2012
Oct 2014
Generation
GeForce 600M
GeForce 900M
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1250 MHz
1253 MHz
Base Clock
—
924 MHz
Boost Clock
—
1038 MHz
Memory
Memory Size
2GB
3GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
192bit
Bandwidth
160.0GB/s
120.3GB/s
Render Config
Shading Units
1536
1280
TMUs
128
80
ROPs
32
48
L1 Cache
16 KB (per SMX)
48 KB (per SMM)
L2 Cache
512 KB
1536 KB
Theoretical Performance
Pixel Rate
23.01 GPixel/s
49.82 GPixel/s
Texture Rate
92.03 GTexel/s
83.04 GTexel/s
FP32 (float)
2.209 TFLOPS
2.657 TFLOPS
FP64 (double)
92.03 GFLOPS
83.04 GFLOPS
Graphics Processor
GPU Name
GK104
GM204
GPU Variant
N13E-GTX2-A2
N16E-GT-A2
Architecture
Kepler
Maxwell 2.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
5.2 billion
Die Size
294 mm²
398 mm²
Board Design
TDP
122W
Unknown
Outputs
No outputs
Portable Device Dependent
Power Connectors
—
None
Graphics Features
DirectX
12 (11_0)
12 (12_1)
OpenGL
4.6
4.6
OpenCL
3.0
3.0
Vulkan
1.1
1.3
CUDA
3.0
5.2
Shader Model
5.1
6.7 (6.4)
▲ Specs Compare
Data sourced from official specifications and benchmark tests.