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/ Comparison of Radeon HD 7870 XT and Radeon R9 280X
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Comparison of Radeon HD 7870 XT and Radeon R9 280X
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Attribute
Radeon HD 7870 XT
×
Radeon R9 280X
×
GPU
1
↑
Release year (year)
2012
2013
Reference card
-
AMD Radeon R9 280X 850 MHz 3 GB
GPU brand
AMD
AMD
GPU name
Tahiti LE
Tahiti
Market
Desktop
Desktop
Clock speed (MHz)
925
850
Turbo clock speed (MHz)
975
1,000
Is dual GPU
-
-
Model
Radeon HD 7870 XT
Radeon R9 280X
Memory
Memory (MB)
2,048
3,072
Memory bandwidth (GB/s)
192
288
Memory bus (bit)
256
384
Memory type
GDDR5
GDDR5
Memory clock speed (MHz)
1,500
1,500
Effective memory clock speed (MHz)
6,000
6,000
Noise and power
TDP (W)
185
250
Raw performance
Pixel rate (GPixel/s)
31.2
32
Render output processors
32
32
Texture mapping units
96
128
Shading units
1,536
2,048
Floating-point performance (GFLOPS)
2,995
4,096
Compute units
24
32
Texture rate (GTexel/s)
93.6
128
Benchmarks
Metro: Last Light
79.5
-
Battlefield 3
72
-
Battlefield 4
-
39.9
Face detection (mPixels/s)
65.4
95.62
T-Rex (GFXBench 3.0)
3350.68
3356.04
Manhattan (GFXBench 3.0)
3705.76
3709.16
Bitcoin mining (mHash/s)
345.79
468.39
Sky Diver Factor
314
380.99
Thief
-
33.6
Fire Strike Factor
47.56
62.73
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