GeForce GTX 980M and Radeon R7 M340 - video card comparison
Passmark - benchmark score GeForce GTX 980M vs Radeon R7 M340
GeForce GTX 980M
7565
Radeon R7 M340
679
GeForce GTX 980M
Radeon R7 M340
Architecture
Maxwell (2014−2018)
GCN (2011−2017)
GPU code name
GM204
Meso Pro DDR3
Market segment
Laptop
Laptop
Release date
October 2014
June 2015
Bus support
PCI Express 3.0
PCIe 3.0
Interface
MXM-B (3.0)
PCIe 3.0 x8
Supplementary power connectors
None
None
SLI options
+
-
Boost clock speed
1127 MHz
1021 MHz
Compute units
-
6
Core clock speed
1038 MHz
1021 MHz
CUDA cores
1536
-
Floating-point performance
3,462 gflops
549.1 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,200 million
950 million
Pipelines / CUDA cores
1536
320
Power consumption (TDP)
unknown
-
Texture fill rate
51.84
17.16
Memory type
GDDR5
DDR3
Maximum RAM amount
8 GB
4 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
2500 MHz
1000 MHz
Memory bandwidth
160 GB/s
16 GB/s
Shared memory
-
-
Display Connectors
No outputs
No outputs
Eyefinity
-
1
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
-
G-SYNC support
+
-
DirectX
12 (12_1)
DirectX® 12
CUDA
+
-
Mantle
-
+
OpenCL
1.1
Not Listed
OpenGL
4.5
4.4
Shader Model
6.4
5.1
Vulkan
1.1.126
+
Ansel
+
-
AppAcceleration
-
-
BatteryBoost
+
-
DualGraphics
-
1
Enduro
-
-
FreeSync
-
1
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
HD3D
-
+
Optimus
+
-
PowerTune
-
+
Switchable graphics
-
1
TrueAudio
-
-
ZeroCore
-
+