GeForce GTX 980 Ti and Radeon HD 6990 - video card comparison
Passmark - benchmark score GeForce GTX 980 Ti vs Radeon HD 6990
GeForce GTX 980 Ti
14228
Radeon HD 6990
3103
GeForce GTX 980 Ti
Radeon HD 6990
Architecture
Maxwell (2014−2018)
TeraScale 3 (2010−2013)
GPU code name
GM200
Antilles
Market segment
Desktop
Desktop
Release date
June 2015
March 2011
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
600 Watt
-
Supplementary power connectors
6-pin + 8-pin
2x 8-pin
SLI options
+
-
Boost clock speed
1075 MHz
-
Core clock speed
1000 MHz
830 MHz
CUDA cores
2816
-
Floating-point performance
6,060 gflops
2x 2,549.8 gflops
Manufacturing process technology
28 nm
40 nm
Number of transistors
8,000 million
2,640 million
Pipelines / CUDA cores
2816
1536
Power consumption (TDP)
250 Watt
375 Watt
Texture fill rate
176 billion/sec
79.68
Memory type
GDDR5
GDDR5
Maximum RAM amount
6 GB
2 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
7.0 GB/s
5000 MHz
Memory bandwidth
336.5 GB/s
160.0 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
1x DVI, 4x mini-DisplayPort
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
11.2 (11_0)
CUDA
+
-
OpenCL
1.2
1.2
OpenGL
4.5
4.4
Shader Model
6.4
5.0
Vulkan
1.1.126
N/A
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-