Radeon R7 250X and Radeon HD 6450 - video card comparison
Passmark - benchmark score Radeon R7 250X vs Radeon HD 6450
Radeon R7 250X
2336
Radeon HD 6450
203
Radeon R7 250X
Radeon HD 6450
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Cape Verde
Caicos
Market segment
Desktop
Desktop
Release date
February 2014
April 2011
Bus support
PCIe 3.0
PCIe 2.0 x8
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1 x 6-pin
None
Boost clock speed
1000 MHz
750 MHz
Floating-point performance
1,216 gflops
200.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
370 million
Pipelines / CUDA cores
640
160
Power consumption (TDP)
80 Watt
30 Watt
Texture fill rate
38.00
5.000
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1625 MHz
800 MHz
Memory bandwidth
96 GB/s
25.6 GB/s
Memory bandwidth
-
8.5-12.8 GB/x (DDR3) or 25.6-28.8 GB/s (GDDR5)
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
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
-
-