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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
1
↓
Memory (MB)
2,048
2,048
Memory bandwidth (GB/s)
192
144.2
Memory bus (bit)
256
192
Memory type
GDDR5
GDDR5
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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