GeForce GTX 980 and GeForce GTX 950 - video card comparison
Passmark - benchmark score GeForce GTX 980 vs GeForce GTX 950
GeForce GTX 980
11457
GeForce GTX 950
5498
GeForce GTX 980
GeForce GTX 950
Architecture
Maxwell (2014−2018)
Maxwell (2014−2018)
GPU code name
GM204
GM206
Market segment
Desktop
Desktop
Release date
September 2014
August 2015
Bus support
PCI Express 3.0
PCI Express 3.0
Interface
PCIe 3.0 x16
PCIe 3.0 x16
Recommended system power (PSU)
500 Watt
350 Watt
Supplementary power connectors
2x 6-pins
1x 6-pins
SLI options
+
+
Boost clock speed
1216 MHz
1188 MHz
Core clock speed
1064 MHz
1024 MHz
CUDA cores
2048
768
Floating-point performance
4,981 gflops
1,825 gflops
Manufacturing process technology
28 nm
28 nm
Number of transistors
5,200 million
2,940 million
Pipelines / CUDA cores
2048
768
Power consumption (TDP)
165 Watt
90 Watt
Texture fill rate
144 billion/sec
49.2 billion/sec
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
128 Bit
Memory clock speed
7.0 GB/s
6.6 GB/s
Memory bandwidth
224 GB/s
105.6 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
Multi monitor support
4 displays
4 displays
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
HDCP
+
+
Maximum VGA resolution
2048x1536
2048x1536
G-SYNC support
+
+
Audio input for HDMI
Internal
Internal
DirectX
12 (12_1)
12 (12_1)
CUDA
+
+
OpenCL
1.2
1.2
OpenGL
4.5
4.5
Shader Model
6.4
6.4
Vulkan
1.1.126
1.1.126
BatteryBoost
+
-
GameStream
+
+
GameWorks
+
+
GeForce ShadowPlay
+
+
GPU Boost
2.0
2.0
H.264, VC1, MPEG2 1080p video decoder
+
-
Optimus
+
-