Radeon HD 6850 and Quadro K620 - video card comparison
Passmark - benchmark score Radeon HD 6850 vs Quadro K620
Radeon HD 6850
2030
Quadro K620
2297
Radeon HD 6850
Quadro K620
Architecture
TeraScale 2 (2009−2015)
Maxwell (2014−2018)
GPU code name
Barts
GM107
Market segment
Desktop
Workstation
Release date
October 2010
July 2014
Bus support
AGP
-
Interface
PCIe 2.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
-
1124 MHz
Core clock speed
-
1058 MHz
Floating-point performance
1,488.0 gflops
863.2 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,700 million
1,870 million
Pipelines / CUDA cores
960
384
Power consumption (TDP)
127 Watt
41 Watt
Texture fill rate
37.20
26.98
Memory type
GDDR5
128 Bit
Maximum RAM amount
1 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1800 MHz
Memory bandwidth
128.0 GB/s
Up to 29 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
DVI-I DP
Number of simultaneous displays
-
4
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
12
CUDA
-
5.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.5
Shader Model
5.0
5
Vulkan
-
+
3D Vision Pro
-
+
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
HD3D
-
-
Mosaic
-
+
nView Desktop Management
-
+
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-