Radeon R7 250 and Radeon HD 6540G2 - video card comparison
Radeon R7 250
Radeon HD 6540G2
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Oland XT
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Market segment
Desktop
Laptop
Release date
October 2013
June 2011
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x8
-
Supplementary power connectors
N/A
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Boost clock speed
1050 MHz
-
Floating-point performance
716.8 gflops
-
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
-
Pipelines / CUDA cores
384
480
Power consumption (TDP)
75 Watt
-
Texture fill rate
25.20
-
Memory type
DDR3, GDDR5
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Maximum RAM amount
2 GB
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Memory bus width
128 Bit
-
Memory clock speed
1150 MHz
-
Memory bandwidth
72 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
11
Mantle
-
-
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
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