Comparison of Radeon HD 7870 XT and Radeon R9 270

Attribute	Radeon HD 7870 XT ×	Radeon R9 270 ×
GPU
Release year (year)	2012	2013
GPU brand	AMD	AMD
GPU name	Tahiti LE	Curacao
Market	Desktop	Desktop
Clock speed (MHz)	925	900
Turbo clock speed (MHz)	975	925
Is dual GPU	-	-
Model	Radeon HD 7870 XT	Radeon R9 270
Memory
Memory (MB)	2,048	2,048
Memory bandwidth (GB/s)	192	179.2
Memory bus (bit)	256	256
Memory type	GDDR5	GDDR5
Memory clock speed (MHz)	1,500	1,400
Effective memory clock speed (MHz)	6,000	5,600
Noise and power
TDP (W)	185	150
Raw performance
Pixel rate (GPixel/s)	31.2	29.6
Render output processors	32	32
Texture mapping units	96	80
Shading units	1,536	1,280
Floating-point performance (GFLOPS)	2,995	2,368
Compute units	24	20
Texture rate (GTexel/s)	93.6	74
Benchmarks
Metro: Last Light	79.5	-
Battlefield 3	72	-
Crysis 3	-	74
Battlefield 4	-	65
Face detection (mPixels/s)	65.4	57.24
T-Rex (GFXBench 3.0)	3350.68	3359.76
Manhattan (GFXBench 3.0)	3705.76	3717.7
Bitcoin mining (mHash/s)	345.79	251.26
Sky Diver Factor	314	312.65
Fire Strike Factor	47.56	49.6