Radeon HD 7770 and Radeon E4690 PCIe - video card comparison
Radeon HD 7770
Radeon E4690 PCIe
Architecture
GCN (2011−2017)
TeraScale (2005−2013)
GPU code name
Cape Verde
RV730
Market segment
Desktop
Desktop
Release date
February 2012
June 2009
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
-
Core clock speed
1000 MHz
600 MHz
Floating-point performance
-
384.0 gflops
Manufacturing process technology
28 nm
55 nm
Number of transistors
1,500 million
514 million
Pipelines / CUDA cores
640
320
Power consumption (TDP)
80 Watt
30 Watt
Texture fill rate
40.00
19.20
Memory type
GDDR5
GDDR3
Maximum RAM amount
2 GB
512 MB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
1400 MHz
Memory bandwidth
72 GB/s
22.4 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
2x DVI
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
10.1 (10_1)
OpenCL
1.2
1.1
OpenGL
4.6
3.3
Shader Model
5.1
4.1
Vulkan
1.2.131
N/A