GeForce GTX 980 Ti and Radeon HD 2600 XT X2 - video card comparison
GeForce GTX 980 Ti
Radeon HD 2600 XT X2
Architecture
Maxwell (2014−2018)
TeraScale (2005−2013)
GPU code name
GM200
RV630
Market segment
Desktop
Desktop
Release date
June 2015
July 2007
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
PCIe 1.0 x16
Recommended system power (PSU)
600 Watt
-
Supplementary power connectors
6-pin + 8-pin
1x 6-pin
SLI options
+
-
Boost clock speed
1075 MHz
-
Core clock speed
1000 MHz
800 MHz
CUDA cores
2816
-
Floating-point performance
6,060 gflops
2x 192 gflops
Manufacturing process technology
28 nm
65 nm
Number of transistors
8,000 million
390 million
Pipelines / CUDA cores
2816
120
Power consumption (TDP)
250 Watt
-
Texture fill rate
176 billion/sec
6.400
Memory type
GDDR5
GDDR3
Maximum RAM amount
6 GB
512 MB
Memory bus width
384 Bit
128 Bit
Memory clock speed
7.0 GB/s
1600 MHz
Memory bandwidth
336.5 GB/s
25.6 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
4x DVI, 1x S-Video
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
10.0 (10_0)
CUDA
+
-
OpenCL
1.2
N/A
OpenGL
4.5
3.3
Shader Model
6.4
4.0
Vulkan
1.1.126
N/A
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-