Radeon R9 270 and Quadro K420 - video card comparison
Passmark - benchmark score Radeon R9 270 vs Quadro K420
Radeon R9 270
4435
Quadro K420
768
Radeon R9 270
Quadro K420
Architecture
GCN 1.0 (2012−2020)
Kepler (2012−2018)
GPU code name
Curacao
GK107
Market segment
Desktop
Workstation
Release date
November 2013
July 2014
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin
None
Boost clock speed
925 MHz
-
Core clock speed
-
876 MHz
Floating-point performance
2,368 gflops
336.4 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
1,270 million
Pipelines / CUDA cores
1280
192
Power consumption (TDP)
150 Watt
41 Watt
Texture fill rate
74.00
14.02
Memory type
GDDR5
128 Bit
Maximum RAM amount
2 GB
1 GB/2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
-
1782 MHz
Memory bandwidth
179.2 GB/s
Up to 29 GB/s
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
DVI-I DP
Number of simultaneous displays
-
4
Eyefinity
1
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12
CUDA
-
3.0
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.5
Shader Model
5.1
5
Vulkan
+
+
3D Vision Pro
-
+
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
Mosaic
-
+
nView Desktop Management
-
+
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-