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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
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):7200 MHz
Memory
Memory size:2048, 1024, 512 MB
Memory bus type:
https://gamesystemrequirements.com/
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:
https://gamesystemrequirements.com/
4.1
OpenCL:1.0
Thermal Design Power (TDP,Max):150 W
Energy efficiency:
- 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):
1 / 10
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Recommended CPUs:
Pentium G2030T
Pentium G632
Pentium G630
Phenom X4 9700
Pentium G645T
Athlon II X3 425
Pentium G620
Celeron G1610T
Core 2 Duo E8500
Core 2 Duo E8290
A4-6320
Phenom X4 9350e
Phenom X4 9600 BE
Phenom X4 9600
Celeron G550
Pentium G6951
Athlon X2 370K
Pentium G622
Celeron G1620T
Athlon II X3 420e
A6-6400K
A6-6420K
Phenom II X3 705e
Athlon II X3 415e
Athlon II X3 425e
Phenom X3 8850
Core 2 Duo E8400
Celeron G540
Phenom II X3 700e
A4-6300
Phenom X4 9500
A6-5400B
Core i5-750S
A4-7300
Phenom II X2 565
Athlon II X2 280
Pentium G630T
Celeron G530
A6-6400B
Phenom II X2 521
Celeron G550T
Phenom II X2 B59
A6-5400K
Pentium G6960
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