GeForce GTX 980 Ti and GeForce 840M - video card comparison
Passmark - benchmark score GeForce GTX 980 Ti vs GeForce 840M
GeForce GTX 980 Ti
14228
GeForce 840M
1121
GeForce GTX 980 Ti
GeForce 840M
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
GM200
N15S-GT
Market segment
Desktop
Laptop
Release date
June 2015
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
Recommended system power (PSU)
600 Watt
-
Supplementary power connectors
6-pin + 8-pin
-
SLI options
+
-
Boost clock speed
1075 MHz
1124 MHz
Core clock speed
1000 MHz
1029 MHz
CUDA cores
2816
-
Floating-point performance
6,060 gflops
863.2 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
8,000 million
-
Pipelines / CUDA cores
2816
384
Power consumption (TDP)
250 Watt
33 Watt
Texture fill rate
176 billion/sec
17.98
Memory type
GDDR5
DDR3
Maximum RAM amount
6 GB
4 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
7.0 GB/s
2000 MHz
Memory bandwidth
336.5 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
No outputs
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
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
1.1.126
1.1.126
GameStream
+
-
GameWorks
+
-
GameWorks
-
+
GeForce ShadowPlay
+
-
GPU Boost
2.0
2.0
Optimus
-
+