Radeon HD 7850 and Radeon R7 M340 - video card comparison
Passmark - benchmark score Radeon HD 7850 vs Radeon R7 M340
Radeon HD 7850
3976
Radeon R7 M340
679
Radeon HD 7850
Radeon R7 M340
Architecture
GCN 1.0 (2012−2020)
GCN (2011−2017)
GPU code name
Pitcairn
Meso Pro DDR3
Market segment
Desktop
Laptop
Release date
March 2012
June 2015
Bus support
PCIe 2.1 x16
PCIe 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x8
Supplementary power connectors
1x 6-pin
None
Boost clock speed
1000 MHz
1021 MHz
Compute units
-
6
Core clock speed
-
1021 MHz
Floating-point performance
1,761 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
2,800 million
950 million
Pipelines / CUDA cores
1024
320
Power consumption (TDP)
130 Watt
-
Texture fill rate
55.04
17.16
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1200 MHz
1000 MHz
Memory bandwidth
153.6 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
1x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
1
HDMI
+
-
DisplayPort support
-
-
DirectX
12
DirectX® 12
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.6
4.4
Shader Model
5.1
5.1
Vulkan
+
+
AppAcceleration
-
-
CrossFire
1
-
DualGraphics
-
1
Enduro
-
-
FreeSync
1
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+