Radeon R9 280X and Radeon 620 - video card comparison
Passmark - benchmark score Radeon R9 280X vs Radeon 620
Radeon R9 280X
6012
Radeon 620
924
Radeon R9 280X
Radeon 620
Architecture
GCN (2011−2017)
GCN 1.0 (2012−2020)
GPU code name
Thaiti XTL
Polaris 24
Market segment
Desktop
Laptop
Release date
October 2013
August 2019
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1 x 6-pin + 1 x 8-pin
None
Boost clock speed
1000 MHz
1024 MHz
Floating-point performance
4,096 gflops
-
Manufacturing process technology
28 nm
28 nm
Number of transistors
4,313 million
1,550 million
Pipelines / CUDA cores
2048
384
Power consumption (TDP)
250 Watt
50 Watt
Texture fill rate
128.0
24.58
Memory type
GDDR5
DDR3, GDDR5
Maximum RAM amount
3 GB
4 GB
Memory bus width
384 Bit
64 Bit
Memory clock speed
-
2250 MHz
Memory bandwidth
288 GB/s
14.4 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 1x DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DisplayPort support
+
-
DirectX
DirectX® 12
12 (12_0)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.6
4.6
Shader Model
5.1
6.3
Vulkan
+
1.2.131
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
LiquidVR
1
-
PowerTune
-
-
TressFX
1
-
TrueAudio
+
-
UVD
+
-
ZeroCore
-
-