Radeon R9 M265X and Radeon HD 8770M - video card comparison
Radeon R9 M265X
Radeon HD 8770M
Architecture
GCN (2011−2017)
GCN (2011−2017)
GPU code name
Venus Pro
Mars
Market segment
Laptop
Laptop
Release date
January 2014
November 2012
Bus support
PCIe 3.0 x16
-
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Boost clock speed
625 MHz
825 MHz
Compute units
10
-
Core clock speed
625 MHz
775 MHz
Floating-point performance
800.0 gflops
633.6 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
1,500 million
950 million
Pipelines / CUDA cores
640
384
Texture fill rate
25.00
19.80
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
128 Bit
128 Bit
Memory clock speed
1125 MHz
4500 MHz
Memory bandwidth
72 GB/s
72 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
1
-
DirectX
DirectX® 11
12 (11_1)
Mantle
+
-
OpenCL
Not Listed
1.2
OpenGL
4.4
4.6
Shader Model
5.1
5.1
Vulkan
-
1.2.131
AppAcceleration
-
-
DualGraphics
1
-
Enduro
-
-
FreeSync
1
-
HD3D
+
-
PowerTune
+
-
Switchable graphics
1
-
TrueAudio
-
-
ZeroCore
+
-