NVIDIA GeForce GTX 680MX Mac Edition vs AMD Radeon E8950
GPU Specs Compare
Graphics Card
Release Date
Oct 2012
Sep 2015
Generation
GeForce 600M
Embedded
Type
Mobile
Mobile
Bus Interface
PCIe 3.0 x16
MXM-B (3.0)
Clock Speeds
Memory Clock
1250 MHz
1500 MHz
Base Clock
-
735 MHz
Boost Clock
-
1000 MHz
Memory
Memory Size
2GB
8GB
Memory Type
GDDR5
GDDR5
Memory Bus
256bit
256bit
Bandwidth
160.0GB/s
192.0GB/s
Render Config
Shading Units
1536
2048
TMUs
128
128
ROPs
32
32
L1 Cache
16 KB (per SMX)
16 KB (per CU)
L2 Cache
512 KB
512 KB
Compute Units
-
32
Theoretical Performance
Pixel Rate
23.01 GPixel/s
32.00 GPixel/s
Texture Rate
92.03 GTexel/s
128.0 GTexel/s
FP32 (float)
2.209 TFLOPS
4.096 TFLOPS
FP64 (double)
92.03 GFLOPS
256.0 GFLOPS
FP16 (half)
-
4.096 TFLOPS
Graphics Processor
GPU Name
GK104
Amethyst
GPU Variant
N13E-GTX2-A2
E8950
Architecture
Kepler
GCN 3.0
Foundry
TSMC
TSMC
Process Size
28 nm
28 nm
Transistors
3.54 billion
5 billion
Die Size
294 mm²
366 mm²
Board Design
TDP
122W
95W
Outputs
No outputs
No outputs
Power Connectors
-
None
Graphics Features
DirectX
12 (11_0)
12 (12_0)
OpenGL
4.6
4.6
OpenCL
3.0
2.0
Vulkan
1.1
1.2
CUDA
3.0
-
Shader Model
5.1
6.3