NVIDIA GeForce GTX 680MX Mac Edition vs AMD Radeon Instinct MI8
GPU Specs Compare
Graphics Card
Release Date
Oct 2012
Dec 2016
Generation
GeForce 600M
Radeon Instinct
Type
Mobile
Professional
Bus Interface
PCIe 3.0 x16
PCIe 3.0 x16
Clock Speeds
Memory Clock
1250 MHz
500 MHz
Memory
Memory Size
2GB
4GB
Memory Type
GDDR5
HBM
Memory Bus
256bit
4096bit
Bandwidth
160.0GB/s
512.0GB/s
Render Config
Shading Units
1536
4096
TMUs
128
256
ROPs
32
64
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
2 MB
Compute Units
-
64
Theoretical Performance
Pixel Rate
23.01 GPixel/s
64.00 GPixel/s
Texture Rate
92.03 GTexel/s
256.0 GTexel/s
FP32 (float)
2.209 TFLOPS
8.192 TFLOPS
FP64 (double)
92.03 GFLOPS
512.0 GFLOPS
FP16 (half)
-
8.192 TFLOPS
Graphics Processor
GPU Name
GK104
Fiji
GPU Variant
N13E-GTX2-A2
Fiji XT CA(215-0862120)
Architecture
Kepler
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
8.9 billion
Die Size
294 mm²
596 mm²
Board Design
TDP
122W
175W
Outputs
No outputs
No outputs
Suggested PSU
-
450 W
Power Connectors
-
1x 8-pin
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