Radeon R7 250X and Radeon R5 340X OEM - video card comparison
Radeon R7 250X
Radeon R5 340X OEM
Architecture
GCN 1.0 (2012−2020)
GCN 1.0 (2012−2020)
GPU code name
Cape Verde
Oland
Market segment
Desktop
Desktop
Release date
February 2014
May 2015
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1 x 6-pin
None
Boost clock speed
1000 MHz
1050 MHz
Core clock speed
-
900 MHz
Floating-point performance
1,216 gflops
806.4 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
950 million
Pipelines / CUDA cores
640
384
Power consumption (TDP)
80 Watt
65 Watt
Texture fill rate
38.00
21.60
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
2 GB
Memory bus width
128 Bit
64 Bit
Memory clock speed
1625 MHz
2000 MHz
Memory bandwidth
96 GB/s
16 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x DisplayPort
Eyefinity
1
-
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
12 (11_1)
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.6
Shader Model
5.1
5.1
Vulkan
-
1.2.131
AppAcceleration
-
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-