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/ Comparison of Radeon HD 6990 and GeForce GTX 780 Ti
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Comparison of Radeon HD 6990 and GeForce GTX 780 Ti
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Attribute
Radeon HD 6990
×
GeForce GTX 780 Ti
×
GPU
Release year (year)
2011
2013
Reference card
AMD Radeon HD 6990 830 MHz 4 GB
-
GPU brand
AMD
Nvidia
GPU name
Antilles
GK110B
Market
Desktop
Desktop
Clock speed (MHz)
830
875
1
↑
Turbo clock speed (MHz)
-
1,020
Is dual GPU
+
-
Model
Radeon HD 6990
GeForce GTX 780 Ti
Memory
Memory (MB)
4,096
3,072
Memory bandwidth (GB/s)
320
336
Memory bus (bit)
512
384
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,250
1,752
Effective memory clock speed (MHz)
5,000
7,000
Noise and power
TDP (W)
375
250
Load power consumption (W)
545
372
Idle power consumption (W)
140
80
Load noise level (dB)
66
51.7
Idle noise level (dB)
45.5
38.6
Raw performance
Pixel rate (GPixel/s)
53.12
52.5
SMX units
-
15
Render output processors
64
48
Texture mapping units
192
240
Shading units
3,072
2,880
Floating-point performance (GFLOPS)
5,100
5,040
Compute units
48
-
Texture rate (GTexel/s)
159.4
210
Benchmarks
Cloud Gate Factor
21.43
-
Battlefield 4
-
85.4
Face detection (mPixels/s)
17.28
75.43
T-Rex (GFXBench 3.0)
3356.28
3358.32
Manhattan (GFXBench 3.0)
3713.7
3713.92
Bitcoin mining (mHash/s)
265.3
182.11
Sky Diver Factor
340.31
430.39
Thief
-
76.8
Fire Strike Factor
45.35
74.6
Ocean surface simulation (frames/s)
840.45
-
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