GeForce GTX 280 and GeForce 840M - video card comparison
Passmark - benchmark score GeForce GTX 280 vs GeForce 840M
GeForce GTX 280
1338
GeForce 840M
1121
GeForce GTX 280
GeForce 840M
Architecture
Tesla 2.0 (2007−2013)
Maxwell (2014−2018)
GPU code name
GT200
N15S-GT
Market segment
Desktop
Laptop
Release date
June 2008
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
6-pin & 8-pin
-
SLI options
+
-
Boost clock speed
-
1124 MHz
Core clock speed
602 MHz
1029 MHz
CUDA cores
240
-
Floating-point performance
622.1 gflops
863.2 gflops
Manufacturing process technology
65 nm
28 nm
Number of transistors
1,400 million
-
Pipelines / CUDA cores
240
384
Power consumption (TDP)
236 Watt
33 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
48.2 billion/sec
17.98
Memory type
GDDR3
DDR3
Maximum RAM amount
1 GB
4 GB
Memory bus width
512 Bit
64 Bit
Memory clock speed
1107 MHz
2000 MHz
Memory bandwidth
141.7 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
HDTVDual Link DVI
No outputs
Multi monitor support
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
2.1
4.5
Shader Model
4.0
5.1
Vulkan
N/A
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+