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