Radeon HD 4770 and Radeon R9 M270X - video card comparison
Passmark - benchmark score Radeon HD 4770 vs Radeon R9 M270X
Radeon HD 4770
935
Radeon R9 M270X
1240
Radeon HD 4770
Radeon R9 M270X
Architecture
TeraScale (2005−2013)
GCN 1.0 (2012−2020)
GPU code name
RV740
Venus
Market segment
Desktop
Desktop
Release date
April 2009
March 2014
Bus support
-
PCIe 3.0 x16
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
775 MHz
Compute units
-
10
Core clock speed
750 MHz
725 MHz
Floating-point performance
960.0 gflops
1,536 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
826 million
1,500 million
Pipelines / CUDA cores
640
640
Power consumption (TDP)
80 Watt
-
Texture fill rate
24.00
31.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
4 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
3200 MHz
1125 MHz
Memory bandwidth
51.2 GB/s
72 GB/s
Display Connectors
2x DVI, 1x S-Video
No outputs
Eyefinity
-
1
DirectX
10.1 (10_1)
DirectX® 11
Mantle
-
+
OpenCL
1.1
Not Listed
OpenGL
3.3
4.4
Shader Model
4.1
5.1
Vulkan
N/A
-
AppAcceleration
-
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+