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GPU Comparison
AMD Radeon Sky 900 vs NVIDIA GeForce 8800 Ultra
AMD Radeon Sky 900 vs NVIDIA GeForce 8800 Ultra
VS
AMD Radeon Sky 900
NVIDIA GeForce 8800 Ultra
We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 and 768MB VRAM GeForce 8800 Ultra to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon Sky 900 's Advantages
Released 5 years and 10 months late
Boost Clock950MHz
Larger VRAM bandwidth (240.0GB/s vs 103.7GB/s)
1664 additional rendering cores
NVIDIA GeForce 8800 Ultra 's Advantages
Lower TDP (171W vs 300W)
Score
Benchmark
FP32 (float)
Radeon Sky 900
+779%
3.405 TFLOPS
GeForce 8800 Ultra
0.387 TFLOPS
Radeon Sky 900
VS
GeForce 8800 Ultra
Graphics Card
Mar 2013
Release Date
May 2007
Radeon Sky
Generation
GeForce 8
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 1.0 x16
Clock Speeds
825 MHz
Base Clock
-
950 MHz
Boost Clock
-
1250 MHz
Memory Clock
1080 MHz
Memory
3GB
Memory Size
768MB
GDDR5
Memory Type
GDDR3
384bit
Memory Bus
384bit
240.0GB/s
Bandwidth
103.7GB/s
Render Config
-
SM Count
16
28
Compute Units
-
1792
Shading Units
128
112
TMUs
32
32
ROPs
24
-
Tensor Cores
-
-
RT Cores
-
16 KB (per CU)
L1 Cache
-
768 KB
L2 Cache
96 KB
Theoretical Performance
30.40 GPixel/s
Pixel Rate
14.69 GPixel/s
106.4 GTexel/s
Texture Rate
39.17 GTexel/s
-
FP16 (half)
-
3.405 TFLOPS
FP32 (float)
387.1 GFLOPS
851.2 GFLOPS
FP64 (double)
-
Graphics Processor
Tahiti
GPU Name
G80
Orthrus
GPU Variant
G80-450-A3
GCN 1.0
Architecture
Tesla
TSMC
Foundry
TSMC
28 nm
Process Size
90 nm
4.313 billion
Transistors
0.681 billion
352 mm²
Die Size
484 mm²
Board Design
300W
TDP
171W
700 W
Suggested PSU
450 W
1x DVI 1x mini-DisplayPort 1.2
Outputs
2x DVI 1x S-Video
2x 8-pin
Power Connectors
2x 6-pin
Graphics Features
12 (11_1)
DirectX
11.1 (10_0)
4.6
OpenGL
3.3
1.2
OpenCL
1.1 (1.0)
1.2
Vulkan
N/A
-
CUDA
1.0
5.1
Shader Model
4.0
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