Radeon R7 250 and Radeon X1900 XT - video card comparison
Radeon R7 250
Radeon X1900 XT
Architecture
GCN (2011−2017)
R500 (2005−2007)
GPU code name
Oland XT
R580
Market segment
Desktop
Desktop
Release date
October 2013
January 2006
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x8
PCIe 1.0 x16
Supplementary power connectors
N/A
1x 6-pin
Boost clock speed
1050 MHz
-
Core clock speed
-
625 MHz
Floating-point performance
716.8 gflops
-
Manufacturing process technology
28 nm
90 nm
Number of transistors
950 million
384 million
Pipelines / CUDA cores
384
-
Power consumption (TDP)
75 Watt
100 Watt
Texture fill rate
25.20
10.00
Memory type
DDR3, GDDR5
GDDR3
Maximum RAM amount
2 GB
256 MB
Memory bus width
128 Bit
256 Bit
Memory clock speed
1150 MHz
1450 MBps
Memory bandwidth
72 GB/s
46.4 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI, 1x S-Video
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 12
9.0c (9_3)
Mantle
-
-
OpenCL
1.2
N/A
OpenGL
4.6
2.1 (full)
Shader Model5.13.0
Vulkan
-
N/A
AppAcceleration
+
-
CrossFire
1
-
DDMA audio
+
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-