Comparison of Radeon HD 7870 XT and AMD Radeon HD 7970 GHz Edition

Attribute	AMD Radeon HD 7970 GHz Edition ×	Radeon HD 7870 XT ×
GPU
Release year (year)	2012	2012
Reference card	AMD Radeon HD 7970 925 MHz 3 GB	-
GPU brand	AMD	AMD
GPU name	Tahiti XT2	Tahiti LE
Market	Desktop	Desktop
Clock speed (MHz)	1,000	925
Turbo clock speed (MHz)	1,050	975
Is dual GPU	-	-
Model	AMD Radeon HD 7970 GHz Edition	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)	300	185
Load power consumption (W)	360	-
Idle power consumption (W)	112	-
Load noise level (dB)	53.1	-
Idle noise level (dB)	40.2	-
Raw performance
Pixel rate (GPixel/s)	33.6	31.2
Render output processors	32	32
Texture mapping units	128	96
Shading units	2,048	1,536
Floating-point performance (GFLOPS)	4,301	2,995
Compute units	32	24
Texture rate (GTexel/s)	134.4	93.6
Benchmarks
Metro: Last Light	-	79.5
Battlefield 3	-	72
Crysis 3	28.3	-
Bioshock Infinite	78	-
Face detection (mPixels/s)	94.02	65.4
T-Rex (GFXBench 3.0)	2798.85	3350.68
Manhattan (GFXBench 3.0)	2984.22	3705.76
Bitcoin mining (mHash/s)	487.62	345.79
Sky Diver Factor	380.04	314
Fire Strike Factor	62.9	47.56