Radeon HD 4770 and Radeon HD 7770 - video card comparison
Passmark - benchmark score Radeon HD 4770 vs Radeon HD 7770
Radeon HD 4770
935
Radeon HD 7770
2235
Radeon HD 4770
Radeon HD 7770
Architecture
TeraScale (2005−2013)
GCN (2011−2017)
GPU code name
RV740
Cape Verde
Market segment
Desktop
Desktop
Release date
April 2009
February 2012
Interface
PCIe 2.0 x16
PCIe 3.0 x16
Supplementary power connectors
1x 6-pin
1x 6-pin
Core clock speed
750 MHz
1000 MHz
Floating-point performance
960.0 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
80 Watt
Texture fill rate
24.00
40.00
Memory type
GDDR5
GDDR5
Maximum RAM amount
512 MB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
3200 MHz
4500 MHz
Memory bandwidth
51.2 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x S-Video
1x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
+
HDMI
-
+
DirectX
10.1 (10_1)
12 (11_1)
OpenCL
1.1
1.2
OpenGL
3.3
4.6
Shader Model
4.1
5.1
Vulkan
N/A
1.2.131