GeForce 8800 GTX and GeForce 820M - video card comparison
Passmark - benchmark score GeForce 8800 GTX vs GeForce 820M
GeForce 8800 GTX
608
GeForce 820M
511
GeForce 8800 GTX
GeForce 820M
Architecture
Tesla (2006−2010)
Fermi (2010−2014)
GPU code name
G80
N15V-GM
Market segment
Desktop
Laptop
Release date
November 2006
January 2014
Bus support
-
PCI Express 2.0
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
-
SLI options
+
-
Core clock speed
576 MHz
775 MHz
CUDA cores
575
-
Floating-point performance
345.6 gflops
240.0 gflops
Manufacturing process technology
90 nm
28 nm
Number of transistors
681 million
585 million
Pipelines / CUDA cores
128
96
Power consumption (TDP)
155 Watt
15 Watt
Texture fill rate
36.8 billion/sec
10.00
Memory type
GDDR3
DDR3
Maximum RAM amount
768 MB
2 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
900 MHz
1800 MHz
Memory bandwidth
86.4 GB/s
14.4 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
1.1
OpenGL
3.3
4.5
Shader Model
4.0
5.1
Vulkan
N/A
N/A
GameWorks
-
+
GPU Boost
-
2.0
Optimus
-
+