Radeon HD 4850 and Quadro K420 - video card comparison
Passmark - benchmark score Radeon HD 4850 vs Quadro K420
Radeon HD 4850
1057
Quadro K420
768
Radeon HD 4850
Quadro K420
Architecture
Terascale 1 (2008−2010)
Kepler (2012−2018)
GPU code name
RV770
GK107
Market segment
Desktop
Workstation
Release date
June 2008
July 2014
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Core clock speed
625 MHz
876 MHz
Floating-point performance
1,000.0 gflops
336.4 gflops
Manufacturing process technology
55 nm
28 nm
Number of transistors
956 million
1,270 million
Pipelines / CUDA cores
800
192
Power consumption (TDP)
110 Watt
41 Watt
Texture fill rate
25.00
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
993 MHz
1782 MHz
Memory bandwidth
63.55 GB/s
Up to 29 GB/s
Display Connectors
2x DVI, 1x S-Video
DVI-I DP
Number of simultaneous displays
-
4
DirectX
10.1 (10_1)
12
CUDA
-
3.0
OpenCL
1.1
1.2
OpenGL
3.3
4.5
Shader Model
4.1
5
Vulkan
N/A
+
3D Vision Pro
-
+
Mosaic
-
+
nView Desktop Management
-
+