Radeon HD 6870
Series:HD 6xxx (Northern Islands)
Codename:Barts XT
Release date:2010. October 22.
Die count:1
Die size:255 mm2
Fab:40 nm
Transistors:1700 millions
Bus interface:PCI-E 2.1 x16
Radeon HD 6870
Clock rates
Core clock:900 MHz
Memory clock:1050 MHz
Effective memory clock (DDR):
4200 MHz
Memory size:1024 MB
Memory bus type:GDDR5
Memory bus width:256 bit
Memory bandwidth (maximum):134.4 GB/s
Core units
Unified shader units:
(Stream processors)
Texture mapping units (TMU):56
Render output units (ROP):32
Compute units:14
Pixel fillrate:28.8 (GP/s)
Texture fillrate:50.4 (GT/s)
Single Precision (peak):2016 GFLOPS
Supported Technologies:
Pixel shader:5.0OpenCL:1.2
AMD Eyefinity, AMD Crossfire
Thermal Design Power (TDP,Max):151 W
Energy efficiency:
- Single Precision / TDP:13.35 GFLOPS/W
Release price (USD):239 USD
Performance/price ratio:8.44 GFLOPS/$
2 / 10
Recommended CPUs:
Core 2 Quad Q9500
Core i3-3220T
Pentium G3470
Core i3-3240T
Pentium G3258
Phenom II X4 945
Core i3-2100
Core 2 Quad Q9505
Core 2 Quad Q9505S
Phenom II X4 940
Phenom II X4 840T
Phenom II X4 960T
Pentium G3460
Athlon II X4 651K
Athlon II X4 651
Core 2 Quad Q9450
Athlon X4 740
Core i5-680
Phenom II X4 850
Phenom II X4 830
Athlon II X4 650
Athlon II X4 645
Phenom II X4 925
Phenom II X4 920
Pentium G3430
Pentium G3440
Core 2 Extreme QX6850
Phenom II X4 820
Pentium G2140
Pentium G3420
Core 2 Quad Q9400S
Pentium G4500T
Phenom II X4 B93
Phenom II X4 910e
Core 2 Extreme QX6800
Core 2 Quad Q9300
Core 2 Quad Q9400
Core i5-655K
Core 2 Extreme QX6700
Athlon II X4 641
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