Radeon HD 7770 and GeForce GT 650M SLI - video card comparison
Radeon HD 7770
GeForce GT 650M SLI
Architecture
GCN (2011−2017)
Kepler (2012−2018)
GPU code name
Cape Verde
N13E-GE
Market segment
Desktop
Laptop
Release date
February 2012
March 2012
Interface
PCIe 3.0 x16
-
Supplementary power connectors
1x 6-pin
-
Boost clock speed
-
835 MHz
Core clock speed
1000 MHz
790 MHz
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
-
Pipelines / CUDA cores
640
768
Power consumption (TDP)
80 Watt
-
Texture fill rate
40.00
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
2x2 GB
Memory bus width
128 Bit
2x 128 Bit
Memory clock speed
4500 MHz
4000 MHz
Memory bandwidth
72 GB/s
-
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
-
Eyefinity
+
-
HDMI
+
-
DirectX
12 (11_1)
11
CUDA
-
+
OpenCL
1.2
-
OpenGL
4.6
-
Shader Model
5.1
-
Vulkan
1.2.131
-
Optimus
-
+