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/ Comparison of Radeon HD 7870 XT and GeForce GTX 660 Ti
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Comparison of Radeon HD 7870 XT and GeForce GTX 660 Ti
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Attribute
GeForce GTX 660 Ti
×
Radeon HD 7870 XT
×
GPU
Release year (year)
2012
2012
Reference card
Nvidia GeForce GTX 660 Ti 915 MHz 2 GB
-
GPU brand
Nvidia
AMD
GPU name
GK104
Tahiti LE
Market
Desktop
Desktop
Clock speed (MHz)
915
925
Turbo clock speed (MHz)
980
975
Is dual GPU
-
-
Model
GeForce GTX 660 Ti
Radeon HD 7870 XT
Memory
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
144.2
192
Memory bus (bit)
192
256
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,502
1,500
Effective memory clock speed (MHz)
6,008
6,000
Noise and power
1
↑
TDP (W)
150
185
Load power consumption (W)
318
-
Idle power consumption (W)
111
-
Load noise level (dB)
47.9
-
Idle noise level (dB)
41.8
-
Raw performance
Pixel rate (GPixel/s)
25.62
31.2
SMX units
7
-
Render output processors
24
32
Texture mapping units
112
96
Shading units
1,344
1,536
Floating-point performance (GFLOPS)
2,460
2,995
Compute units
-
24
Texture rate (GTexel/s)
102.5
93.6
Benchmarks
Metro: Last Light
-
79.5
Battlefield 3
-
72
Battlefield 4
42
-
Face detection (mPixels/s)
35.9
65.4
T-Rex (GFXBench 3.0)
3356.32
3350.68
Manhattan (GFXBench 3.0)
3711.8
3705.76
Bitcoin mining (mHash/s)
102.46
345.79
Sky Diver Factor
334.44
314
Thief
40.9
-
Fire Strike Factor
49.97
47.56
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