Radeon HD 6950 and Radeon R7 M340 - video card comparison
Passmark - benchmark score Radeon HD 6950 vs Radeon R7 M340
Radeon HD 6950
2693
Radeon R7 M340
679
Radeon HD 6950
Radeon R7 M340
Architecture
TeraScale 3 (2010−2013)
GCN (2011−2017)
GPU code name
Cayman
Meso Pro DDR3
Market segment
Desktop
Laptop
Release date
December 2010
June 2015
Bus support
PCIe 2.0 x16
PCIe 3.0
Interface
PCIe 2.0 x16
PCIe 3.0 x8
Supplementary power connectors
2x 6-pin
None
Boost clock speed
800 MHz
1021 MHz
Compute units
-
6
Core clock speed
-
1021 MHz
Floating-point performance
2,252.8 gflops
549.1 gflops
Manufacturing process technology
40 nm
28 nm
Number of transistors
2,640 million
950 million
Pipelines / CUDA cores
1408
320
Power consumption (TDP)
500 Watt
-
Texture fill rate
70.40
17.16
Memory type
GDDR5
DDR3
Maximum RAM amount
2 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
1250 MHz
1000 MHz
Memory bandwidth
-
16 GB/s
Shared memory
-
-
Display Connectors
2x DVI, 1x HDMI, 2x mini-DisplayPort
No outputs
Eyefinity
1
1
HDMI
+
-
DisplayPort support
-
-
DirectX
DirectX® 11
DirectX® 12
Mantle
-
+
OpenCL
1.2
Not Listed
OpenGL
4.4
4.4
Shader Model
5.0
5.1
Vulkan
-
+
AppAcceleration
-
-
CrossFire
1
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
HD3D
-
+
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+