GeForce 8800 GTX and GeForce 840M - video card comparison
Passmark - benchmark score GeForce 8800 GTX vs GeForce 840M
GeForce 8800 GTX
608
GeForce 840M
1121
GeForce 8800 GTX
GeForce 840M
Architecture
Tesla (2006−2010)
Maxwell (2014−2018)
GPU code name
G80
N15S-GT
Market segment
Desktop
Laptop
Release date
November 2006
March 2014
Bus support
-
PCI Express 2.0, PCI Express 3.0
Interface
PCIe 1.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
-
SLI options
+
-
Boost clock speed
-
1124 MHz
Core clock speed
576 MHz
1029 MHz
CUDA cores
575
-
Floating-point performance
345.6 gflops
863.2 gflops
Manufacturing process technology
90 nm
28 nm
Number of transistors
681 million
-
Pipelines / CUDA cores
128
384
Power consumption (TDP)
155 Watt
33 Watt
Texture fill rate
36.8 billion/sec
17.98
Memory type
GDDR3
DDR3
Maximum RAM amount
768 MB
4 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
900 MHz
2000 MHz
Memory bandwidth
86.4 GB/s
16.02 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
No outputs
DirectX
11.1 (10_0)
12 (11_0)
CUDA
+
+
OpenCL
1.1
1.2
OpenGL
3.3
4.5
Shader Model
4.0
5.1
Vulkan
N/A
1.1.126
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+