Radeon HD 7850 and Radeon HD 8470 OEM - video card comparison
Radeon HD 7850
Radeon HD 8470 OEM
Architecture
GCN 1.0 (2012−2020)
TeraScale 2 (2009−2015)
GPU code name
Pitcairn
Caicos
Market segment
Desktop
Desktop
Release date
March 2012
January 2013
Bus support
PCIe 2.1 x16
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Supplementary power connectors
1x 6-pin
None
Boost clock speed
1000 MHz
-
Core clock speed
-
775 MHz
Floating-point performance
1,761 gflops
248.0 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
2,800 million
370 million
Pipelines / CUDA cores
1024
160
Power consumption (TDP)
130 Watt
35 Watt
Texture fill rate
55.04
6.200
Memory type
GDDR5
GDDR5
Maximum RAM amount
2 GB
1 GB
Memory bus width
256 Bit
64 Bit
Memory clock speed
1200 MHz
3200 MHz
Memory bandwidth
153.6 GB/s
25.6 GB/s
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
1x DVI, 1x HDMI
Eyefinity
1
-
HDMI
+
+
DisplayPort support
-
-
DirectX
12
11.2 (11_0)
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.6
4.4
Shader Model
5.1
5.0
Vulkan
+
N/A
AppAcceleration
-
-
CrossFire
1
-
Enduro
-
-
FreeSync
1
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-