GeForce GTX 680 and GeForce 8400M G - video card comparison
Passmark - benchmark score GeForce GTX 680 vs GeForce 8400M G
GeForce GTX 680
5721
GeForce 8400M G
60
GeForce GTX 680
GeForce 8400M G
Architecture
Kepler (2012−2018)
Tesla (2006−2010)
GPU code name
GK104
G86M
Market segment
Desktop
Laptop
Release date
March 2012
May 2007
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Supplementary power connectors
Two 6-pin
None
SLI options
+
-
Boost clock speed
1058 MHz
-
Core clock speed
1006 MHz
400 MHz
CUDA cores
1536
-
Floating-point performance
3,090.4 gflops
12.8 gflops
Manufacturing process technology
28 nm
80 nm
Number of transistors
3,540 million
210 million
Pipelines / CUDA cores
1536
8
Power consumption (TDP)
195 Watt
10 Watt
Texture fill rate
128.8 billion/sec
3.200
Memory type
GDDR5
GDDR3 / GDDR2
Maximum RAM amount
2048 MB
256 MB
Memory bus width
256-bit GDDR5
64 Bit
Memory clock speed
6000 MHz
600 MHz
Memory bandwidth
192.2 GB/s
6.4 GB/s
Shared memory
-
-
Display Connectors
One Dual Link DVI-I, One Dual Link DVI-D, One HDMI, One DisplayPort
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11.1 (10_0)
CUDA
+
1.1
OpenCL
1.2
1.1
OpenGL
4.2
3.3
Shader Model
5.1
4.0
Vulkan
1.1.126
N/A