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Radeon HD 4870
Manufacturer:AMD
Series:HD 4xxx (Radeon R700)
Codename:RV770 XT
Release date:2008. June 25.
Die count:1
http://gamesystemrequirements.com/
Die size:256 mm2
Fab:55 nm
Transistors:956 millions
Bus interface:PCI-E 2.0 x16
Clock rates
Core clock:750 MHz
Memory clock:900 MHz
Effective memory clock (DDR):
http://gamesystemrequirements.com/
3600 MHz
Memory
Memory size:2048, 1024, 512 MB
Memory bus type:GDDR5
Memory bus width:256 bit
Memory bandwidth (maximum):115.2 GB/s
Core units
Unified shader units:
(Stream processors)
800
Texture mapping units (TMU):40
Render output units (ROP):16
Compute units:10
Performance
Pixel fillrate:12 (GP/s)
Texture fillrate:30 (GT/s)
Single Precision (peak):1200 GFLOPS
Double Precision (peak):240 GFLOPS
Supported Technologies:
DirectX:10.1OpenGL:3.3
Pixel shader:4.1OpenCL:1.0
Mantle:No
Thermal Design Power (TDP,Max):150 W
Energy efficiency:
http://gamesystemrequirements.com/
- Single Precision / TDP:8 GFLOPS/W
- Double Precision / TDP:1.6 GFLOPS/W
Release price (USD):300 USD
Performance/price ratio:4 GFLOPS/$
Performance
(Benchmark):
2 / 10
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Recommended CPUs:
Pentium G2030T
Phenom X4 9700
Pentium G632
Pentium G630
Pentium G645T
Pentium G620
Athlon II X3 425
Core 2 Duo E8290
Core 2 Duo E8500
Celeron G1610T
A4-6320
Phenom X4 9350e
Phenom X4 9600 BE
Celeron G550
Phenom X4 9600
Pentium G6951
Athlon X2 370K
Pentium G622
Athlon II X3 420e
Celeron G1620T
A6-6400K
A6-6420K
Athlon II X3 415e
Athlon II X3 425e
Phenom II X3 705e
Phenom II X3 700e
Celeron G540
Core 2 Duo E8400
Phenom X3 8850
Phenom X4 9500
A4-6300
A6-5400B
Core i5-750S
A4-7300
Phenom II X2 565
Athlon II X2 280
Pentium G630T
Phenom II X2 521
A6-6400B
Celeron G530
Celeron G550T
Pentium G6960
A6-5400K
Phenom II X2 B59
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