Radeon HD 6970 and Radeon R7 250 - video card comparison
Passmark - benchmark score Radeon HD 6970 vs Radeon R7 250
Radeon HD 6970
2921
Radeon R7 250
1100
Radeon HD 6970
Radeon R7 250
Architecture
Terascale 2 (2009−2015)
GCN (2011−2017)
GPU code name
Cayman
Oland XT
Market segment
Desktop
Desktop
Release date
December 2010
October 2013
Bus support
PCIe 2.0 x16
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin + 1x 8-pin
N/A
Boost clock speed
880 MHz
1050 MHz
Floating-point performance
2,703.4 gflops
716.8 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
950 million
Pipelines / CUDA cores
1536
384
Power consumption (TDP)
550 Watt
75 Watt
Texture fill rate
84.48
25.20
Memory type
DDR5
DDR3, GDDR5
Maximum RAM amount
2 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1375 MHz
1150 MHz
Memory bandwidth
-
72 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI, 1x VGA
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 12
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.4
4.6
Shader Model
5.0
5.1
AppAcceleration
-
+
CrossFire
1
1
DDMA audio
-
+
Enduro
-
-
FreeSync
-
1
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-