Radeon R7 250 and Radeon HD 6770 - video card comparison
Passmark - benchmark score Radeon R7 250 vs Radeon HD 6770
Radeon R7 250
1100
Radeon HD 6770
1286
Radeon R7 250
Radeon HD 6770
Architecture
GCN (2011−2017)
TeraScale 2 (2009−2015)
GPU code name
Oland XT
Juniper
Market segment
Desktop
Desktop
Release date
October 2013
January 2011
Bus support
PCIe 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x8
PCIe 2.0 x16
Supplementary power connectors
N/A
1x 6-pin
Boost clock speed
1050 MHz
900 MHz
Floating-point performance
716.8 gflops
1,360.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
950 million
1,040 million
Pipelines / CUDA cores
384
800
Power consumption (TDP)
75 Watt
108 Watt
Texture fill rate
25.20
34.00
Memory type
DDR3, GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1150 MHz
1050 MHz
Memory bandwidth
72 GB/s
76.8 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 1x VGA
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
1
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
-
-