Radeon HD 7770 and Mobility Radeon HD 5870 - video card comparison
Radeon HD 7770
Mobility Radeon HD 5870
Architecture
GCN (2011−2017)
Terascale 2 (2009−2015)
GPU code name
Cape Verde
Broadway-XT
Market segment
Desktop
Laptop
Release date
February 2012
January 2010
Interface
PCIe 3.0 x16
MXM-B (3.0)
Supplementary power connectors
1x 6-pin
-
Core clock speed
1000 MHz
700 MHz
Floating-point performance
-
1,120.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
1,500 million
1,040 million
Pipelines / CUDA cores
640
800
Power consumption (TDP)
80 Watt
50 Watt
Texture fill rate
40.00
28.00
Memory type
GDDR5
DDR3, GDDR3, GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
4500 MHz
1000 MHz
Memory bandwidth
72 GB/s
64 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11.2 (11_0)
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
1.2.131
N/A