Comparison of Radeon HD 7870 XT and Radeon R9 280X

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