GeForce GTX 1080 and Radeon HD 6990 - video card comparison
Passmark - benchmark score GeForce GTX 1080 vs Radeon HD 6990
GeForce GTX 1080
16002
Radeon HD 6990
3103
GeForce GTX 1080
Radeon HD 6990
Architecture
Pascal (2016−2021)
TeraScale 3 (2010−2013)
GPU code name
Pascal GP104
Antilles
Market segment
Desktop
Desktop
Release date
May 2016
March 2011
Bus support
PCIe 3.0
-
Interface
PCIe 3.0 x16
PCIe 2.0 x16
Recommended system power (PSU)
500 Watt
-
Supplementary power connectors
8-pin
2x 8-pin
SLI options
+
-
Boost clock speed
1733 MHz
-
Core clock speed
1607 MHz
830 MHz
CUDA cores
2560
-
Floating-point performance
8,873 gflops
2x 2,549.8 gflops
Manufacturing process technology
16 nm
40 nm
Number of transistors
7,200 million
2,640 million
Pipelines / CUDA cores
2560
1536
Power consumption (TDP)
180 Watt
375 Watt
Maximum GPU temperature
94 °C
-
Texture fill rate
277.3
79.68
Memory type
GDDR5X
GDDR5
Maximum RAM amount
8 GB
2 GB
Memory bus width
256 Bit
256 Bit
Memory clock speed
10 GB/s
5000 MHz
Memory bandwidth
320 GB/s
160.0 GB/s
Shared memory
-
-
Display Connectors
DP 1.42, HDMI 2.0b, DL-DVI
1x DVI, 4x mini-DisplayPort
Multi monitor support
+
-
HDMI
+
-
G-SYNC support
+
-
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
1.2.131
N/A
Ansel
+
-
GPU Boost
3.0
-
VR Ready
+
-