GeForce GTX 980 Ti and GeForce 6800 Ultra DDL - video card comparison
GeForce GTX 980 Ti
GeForce 6800 Ultra DDL
Architecture
Maxwell (2014−2018)
Curie (2003−2013)
GPU code name
GM200
NV40
Market segment
Desktop
Desktop
Release date
June 2015
April 2004
Bus support
PCI Express 3.0
-
Interface
PCIe 3.0 x16
AGP Pro 8x
Recommended system power (PSU)
600 Watt
-
Supplementary power connectors
6-pin + 8-pin
None
SLI options
+
-
Boost clock speed
1075 MHz
-
Core clock speed
1000 MHz
400 MHz
CUDA cores
2816
-
Floating-point performance
6,060 gflops
-
Manufacturing process technology
28 nm
130 nm
Number of transistors
8,000 million
222 million
Pipelines / CUDA cores
2816
-
Power consumption (TDP)
250 Watt
100 Watt
Texture fill rate
176 billion/sec
6.400
Memory type
GDDR5
GDDR3
Maximum RAM amount
6 GB
256 MB
Memory bus width
384 Bit
256 Bit
Memory clock speed
7.0 GB/s
1100 MHz
Memory bandwidth
336.5 GB/s
35.2 GB/s
Shared memory
-
-
Display Connectors
Dual Link DVI-I, HDMI 2.0, 3x DisplayPort 1.2
2x DVI
Multi monitor support
4 displays
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
G-SYNC support
+
-
Audio input for HDMI
Internal
-
DirectX
12 (12_1)
9.0c (9_3)
CUDA
+
-
OpenCL
1.2
N/A
OpenGL
4.5
2.1
Shader Model
6.4
3.0
Vulkan
1.1.126
N/A
GameStream
+
-
GameWorks
+
-
GeForce ShadowPlay
+
-
GPU Boost
2.0
-