GeForce 8800 Ultra and Radeon HD 4720 - video card comparison
GeForce 8800 Ultra
Radeon HD 4720
Architecture
Tesla (2006−2010)
TeraScale (2005−2013)
GPU code name
G80
RV730
Market segment
Desktop
Desktop
Release date
May 2007
December 2011
Interface
PCIe 1.0 x16
PCIe 2.0 x16
Supplementary power connectors
2x 6-pin
-
SLI options
+
-
Core clock speed
612 MHz
600 MHz
CUDA cores
612
-
Floating-point performance
387.1 gflops
384.0 gflops
Manufacturing process technology
90 nm
55 nm
Number of transistors
681 million
514 million
Pipelines / CUDA cores
128
320
Power consumption (TDP)
171 Watt
55 Watt
Texture fill rate
39.2 billion/sec
19.20
Memory type
GDDR3
GDDR3
Maximum RAM amount
512 MB
1 GB
Memory bus width
384 Bit
128 Bit
Memory clock speed
1080 MHz
1334 MHz
Memory bandwidth
103.7 GB/s
21.34 GB/s
Display Connectors
2x DVI, 1x S-Video
2x DVI, 1x S-Video
DirectX
11.1 (10_0)
10.1 (10_1)
CUDA
+
-
OpenCL
1.1
1.1
OpenGL
3.3
3.3
Shader Model
4.0
4.1
Vulkan
N/A
N/A