GeForce GTX 480 and Radeon HD 6990M Crossfire - video card comparison
GeForce GTX 480
Radeon HD 6990M Crossfire
Architecture
Fermi (2010−2014)
Terascale 2 (2009−2015)
GPU code name
GF100
Blackcomb XTX
Market segment
Desktop
Laptop
Release date
December 2010
July 2011
Bus support
16x PCI-E 2.0
-
Interface
PCIe 2.0 x16
-
Supplementary power connectors
6-pin & 8-pin
-
SLI options
+
-
Core clock speed
700 MHz
715 MHz
CUDA cores
480
-
Floating-point performance
1,345.0 gflops
-
Manufacturing process technology
40 nm
40 nm
Number of transistors
3,100 million
2x1700 Million
Pipelines / CUDA cores
480
2240
Power consumption (TDP)
295 Watt
-
Maximum GPU temperature
105 °C
-
Texture fill rate
42 billion/sec
-
Memory type
GDDR5
GDDR5
Maximum RAM amount
1536 MB
2x2 GB
Memory bus width
384 Bit
256 Bit
Memory clock speed
1848 MHz (3696 data rate)
900 MHz
Memory bandwidth
177.4 GB/s
-
Shared memory
-
-
Display Connectors
Two Dual Link DVI, Mini HDMI
-
Multi monitor support
+
-
HDMI
+
-
HDCP
+
-
Maximum VGA resolution
2048x1536
-
Audio input for HDMI
Internal
-
DirectX
12 (11_0)
11
CUDA
+
-
OpenCL
1.1
-
OpenGL
4.2
-
Shader Model
5.1
-
Vulkan
N/A
-