GeForce GTX 980 SLI Mobile and Radeon HD 6950 - video card comparison
GeForce GTX 980 SLI Mobile
Radeon HD 6950
Architecture
Maxwell (2014−2018)
TeraScale 3 (2010−2013)
GPU code name
N16E-GXX SLI
Cayman
Market segment
Laptop
Desktop
Release date
September 2015
December 2010
Bus support
-
PCIe 2.0 x16
Interface
-
PCIe 2.0 x16
Supplementary power connectors
-
2x 6-pin
SLI options
+
-
Boost clock speed
1228 MHz
800 MHz
Core clock speed
1126 MHz
-
Floating-point performance
-
2,252.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
10400 Million
2,640 million
Pipelines / CUDA cores
4096
1408
Power consumption (TDP)
330 Watt
500 Watt
Texture fill rate
-
70.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
2x 8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
3500 MHz
1250 MHz
Shared memory
-
-
Display Connectors
-
2x DVI, 1x HDMI, 2x mini-DisplayPort
Eyefinity
-
1
HDMI
-
+
DisplayPort support
-
-
G-SYNC support
+
-
DirectX
12_1
DirectX® 11
CUDA
+
-
Mantle
-
-
OpenCL
-
1.2
OpenGL
-
4.4
Shader Model
-
5.0
AppAcceleration
-
-
CrossFire
-
1
Enduro
-
-
HD3D
-
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-