Radeon HD 6450 and Radeon RX 590 - video card comparison
Passmark - benchmark score Radeon HD 6450 vs Radeon RX 590
Radeon HD 6450
203
Radeon RX 590
9695
Radeon HD 6450
Radeon RX 590
Architecture
TeraScale 2 (2009−2015)
Polaris (2016−2019)
GPU code name
Caicos
Polaris 30
Market segment
Desktop
Desktop
Release date
April 2011
November 2018
Bus support
PCIe 2.0 x8
-
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
None
1x 8-pin
Boost clock speed
750 MHz
1545 MHz
Core clock speed
-
1469 MHz
Floating-point performance
200.0 gflops
-
Manufacturing process technology
40 nm
12 nm
Number of transistors
370 million
5,700 million
Pipelines / CUDA cores
160
2304
Power consumption (TDP)
30 Watt
175 Watt
Texture fill rate
5.000
222.5
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
8 GB
Memory bus width
64 Bit
256 Bit
Memory clock speed
800 MHz
8000 MHz
Memory bandwidth
25.6 GB/s
256.0 GB/s
Memory bandwidth
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
1x HDMI, 3x DisplayPort
Eyefinity
1
-
Number of Eyefinity displays
4
-
HDMI
+
+
DisplayPort support
+
-
DirectX
DirectX® 11
12 (12_0)
Mantle
-
-
OpenCL
1.2
2.0
OpenGL
4.4
4.6
Shader Model
5.0
6.4
Vulkan
-
1.2.131
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
-
+
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-