GeForce 8800 GT and Quadro K420 - video card comparison
Passmark - benchmark score GeForce 8800 GT vs Quadro K420
GeForce 8800 GT
495
Quadro K420
768
GeForce 8800 GT
Quadro K420
Architecture
Tesla (2006−2010)
Kepler (2012−2018)
GPU code name
G92
GK107
Market segment
Desktop
Workstation
Release date
October 2007
July 2014
Bus support
PCI-E 2.0
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
6-pin & 8-pin
None
SLI options
2-way
-
Core clock speed
600 MHz
876 MHz
CUDA cores
112
-
Floating-point performance
336.0 gflops
336.4 gflops
Manufacturing process technology
65 nm
28 nm
Number of transistors
754 million
1,270 million
Pipelines / CUDA cores
112
192
Power consumption (TDP)
105 Watt
41 Watt
Maximum GPU temperature
105 °C
-
Texture fill rate
33.6 billion/sec
14.02
Memory type
GDDR3
128 Bit
Maximum RAM amount
512 MB
1 GB/2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
900 MHz
1782 MHz
Memory bandwidth
57.6 GB/s
Up to 29 GB/s
Display Connectors
Dual Link DVIHDTV
DVI-I DP
Number of simultaneous displays
-
4
Multi monitor support
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
S/PDIF
-
DirectX
11.1 (10_0)
12
CUDA
+
3.0
OpenCL
1.1
1.2
OpenGL
2.1
4.5
Shader Model
4.0
5
Vulkan
N/A
+
3D Vision Pro
-
+
High Dynamic-Range Lighting (HDRR)
128bit
-
Mosaic
-
+
nView Desktop Management
-
+