GeForce 840M and GeForce GT 335M - video card comparison
Passmark - benchmark score GeForce 840M vs GeForce GT 335M
GeForce 840M
1121
GeForce GT 335M
396
GeForce 840M
GeForce GT 335M
Architecture
Maxwell (2014−2018)
GT200 (2010)
GPU code name
N15S-GT
N11P-GS1
Market segment
Laptop
Laptop
Release date
March 2014
January 2010
Bus support
PCI Express 2.0, PCI Express 3.0
PCI-E 2.0
Interface
PCIe 3.0 x8
PCIe 2.0 x16
SLI options
-
+
Boost clock speed
1124 MHz
-
Core clock speed
1029 MHz
450 MHz
CUDA cores
-
72
Floating-point performance
863.2 gflops
155.52 gflops
Gigaflops
-
233
Manufacturing process technology
28 nm
40 nm
Number of transistors
-
727 million
Pipelines / CUDA cores
384
72
Power consumption (TDP)
33 Watt
28 Watt
Texture fill rate
17.98
10.80
Memory type
DDR3
DDR3, GDDR3
Maximum RAM amount
4 GB
1 GB
Memory bus width
64 Bit
128 Bit
Memory clock speed
2000 MHz
Up to 1066 (DDR3), Up to 800 (GDDR3) MHz
Memory bandwidth
16.02 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
No outputs
Single Link DVIVGADisplayPortHDMIDual Link DVI
Multi monitor support
-
+
HDMI
-
+
Maximum VGA resolution
-
2048x1536
DirectX
12 (11_0)
11.1 (10_1)
CUDA
+
+
OpenCL
1.2
1.1
OpenGL
4.5
2.1
Shader Model
5.1
4.1
Vulkan
1.1.126
N/A
GameWorks
+
-
GPU Boost
2.0
-
Optimus
+
-
Power management
-
8.0