Radeon HD 6770 and Radeon R9 M270X - video card comparison
Passmark - benchmark score Radeon HD 6770 vs Radeon R9 M270X
Radeon HD 6770
1286
Radeon R9 M270X
1240
Radeon HD 6770
Radeon R9 M270X
Architecture
TeraScale 2 (2009−2015)
GCN 1.0 (2012−2020)
GPU code name
Juniper
Venus
Market segment
Desktop
Desktop
Release date
January 2011
March 2014
Bus support
PCIe 2.0 x16
PCIe 3.0 x16
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
900 MHz
775 MHz
Compute units
-
10
Core clock speed
-
725 MHz
Floating-point performance
1,360.0 gflops
1,536 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
1,040 million
1,500 million
Pipelines / CUDA cores
800
640
Power consumption (TDP)
108 Watt
-
Texture fill rate
34.00
31.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
1 GB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1050 MHz
1125 MHz
Memory bandwidth
76.8 GB/s
72 GB/s
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
1
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 11
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.4
4.4
Shader Model
5.0
5.1
AppAcceleration
-
-
CrossFire
1
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+