Radeon R7 250 and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon R7 250 vs Radeon HD 6450
Radeon R7 250
1100
Radeon HD 6450
203
Radeon R7 250
Radeon HD 6450
Architecture
GCN (2011−2017)
TeraScale 2 (2009−2015)
GPU code name
Oland XT
Caicos
Market segment
Desktop
Desktop
Release date
October 2013
April 2011
Bus support
PCIe 3.0
PCIe 2.0 x8
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
N/A
None
Boost clock speed
1050 MHz
750 MHz
Floating-point performance
716.8 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
370 million
Pipelines / CUDA cores
384
160
Power consumption (TDP)
75 Watt
30 Watt
Texture fill rate
25.20
5.000
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1150 MHz
800 MHz
Memory bandwidth
72 GB/s
25.6 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 DVI, 1x HDMI, 1x VGA
Eyefinity
-
1
Number of Eyefinity displays
-
4
HDMI
+
+
DisplayPort support
-
+
DirectX
DirectX® 12
DirectX® 11
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
AppAcceleration
+
-
CrossFire
1
1
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-