GeForce GTX 980 and Radeon HD 6950 - video card comparison
Passmark - benchmark score GeForce GTX 980 vs Radeon HD 6950
GeForce GTX 980
11458
Radeon HD 6950
2693
GeForce GTX 980
Radeon HD 6950
Architecture
Maxwell (2014−2018)
TeraScale 3 (2010−2013)
GPU code name
GM204
Cayman
Market segment
Desktop
Desktop
Release date
September 2014
December 2010
Bus support
PCI Express 3.0
PCIe 2.0 x16
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
2x 6-pins
2x 6-pin
SLI options
+
-
Boost clock speed
1216 MHz
800 MHz
Core clock speed
1064 MHz
-
CUDA cores
2048
-
Floating-point performance
4,981 gflops
2,252.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
5,200 million
2,640 million
Pipelines / CUDA cores
2048
1408
Power consumption (TDP)
165 Watt
500 Watt
Texture fill rate
144 billion/sec
70.40
Memory type
GDDR5
GDDR5
Maximum RAM amount
4 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
7.0 GB/s
1250 MHz
Memory bandwidth
224 GB/s
-
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
2x DVI, 1x HDMI, 2x mini-DisplayPort
Multi monitor support
4 displays
-
Eyefinity
-
1
VGA аnalog display support
+
-
DisplayPort Multimode (DP++) support
+
-
HDMI
+
+
HDCP
+
-
Maximum VGA resolution
2048x1536
-
DisplayPort support
-
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
DirectX® 11
CUDA
+
-
Mantle
-
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
1.1.126
-
AppAcceleration
-
-
BatteryBoost
+
-
CrossFire
-
1
Enduro
-
-
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-
H.264, VC1, MPEG2 1080p video decoder
+
-
HD3D
-
-
Optimus
+
-
PowerTune
-
-
TrueAudio
-
-
ZeroCore
-
-