GeForce GTX 1080 and GeForce 840M - video card comparison
Passmark - benchmark score GeForce GTX 1080 vs GeForce 840M
GeForce GTX 1080
16002
GeForce 840M
1121
GeForce GTX 1080
GeForce 840M
Architecture
Pascal (2016−2021)
Maxwell (2014−2018)
GPU code name
Pascal GP104
N15S-GT
Market segment
Desktop
Laptop
Release date
May 2016
March 2014
Bus support
PCIe 3.0
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
8-pin
-
SLI options
+
-
Boost clock speed
1733 MHz
1124 MHz
Core clock speed
1607 MHz
1029 MHz
CUDA cores
2560
-
Floating-point performance
8,873 gflops
863.2 gflops
Manufacturing process technology
16 nm
28 nm
Number of transistors
7,200 million
-
Pipelines / CUDA cores
2560
384
Power consumption (TDP)
180 Watt
33 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
277.3
17.98
Memory type
GDDR5X
DDR3
Maximum RAM amount
8 GB
4 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
10 GB/s
2000 MHz
Memory bandwidth
320 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
No outputs
Multi monitor support
+
-
HDMI
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
12 (11_0)
CUDA
+
+
OpenCL
1.2
1.2
OpenGL
4.5
4.5
Shader Model
6.4
5.1
Vulkan
1.2.131
1.1.126
Ansel
+
-
GameWorks
-
+
GPU Boost
3.0
2.0
Optimus
-
+
VR Ready
+
-