GeForce GTX 780 Ti and GeForce 840M - video card comparison
Passmark - benchmark score GeForce GTX 780 Ti vs GeForce 840M
GeForce GTX 780 Ti
9807
GeForce 840M
1121
GeForce GTX 780 Ti
GeForce 840M
Architecture
Kepler (2012−2018)
Maxwell (2014−2018)
GPU code name
GK110
N15S-GT
Market segment
Desktop
Laptop
Release date
November 2013
March 2014
Bus support
PCI Express 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
One 8-pin and one 6-pin
-
SLI options
+
-
Boost clock speed
928 MHz
1124 MHz
Core clock speed
875 MHz
1029 MHz
CUDA cores
2880
-
Floating-point performance
5,345 gflops
863.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
7,080 million
-
Pipelines / CUDA cores
2880
384
Power consumption (TDP)
250 Watt
33 Watt
Texture fill rate
210 billion/sec
17.98
Memory type
GDDR5
DDR3
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
7.0 GB/s
2000 MHz
Memory bandwidth
336 GB/s
16.02 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_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.2
OpenGL
4.4
4.5
Shader Model
5.1
5.1
Vulkan
1.1.126
1.1.126
3D Gaming
+
-
3D Vision
+
-
3D Vision Live
+
-
Blu Ray 3D
+
-
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+