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XFX HD 4870 XXX

  • HD-487A-YDDC
Graphics Processor
RV770
Cores
800
TMUs
40
ROPs
16
Memory Size
512 MB
Memory Type
GDDR5
Bus Width
256 bit
Front GPU Chip
GPU Chip
GPU

Graphics Processor

GPU Name
RV770
GPU Variant
RV770 XT
(215-0669049)
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
956 million
Density
3.7M / mm²
Die Size
256 mm²
Chip Package
HFCBGA-1492

Graphics Card

Release Date
Jun 25th, 2008
Dec 26th, 2008
Generation
Radeon R700
(HD 4800)
Predecessor
Radeon R600
Successor
Evergreen
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Clock Speeds

GPU Clock
750 MHz
775 MHz (+3%)
Memory Clock
900 MHz
950 MHz (+6%)
3.6 Gbps effective
3.8 Gbps effective

Memory

Memory Size
512 MB
Memory Type
GDDR5
Memory Bus
256 bit
Bandwidth
115.2 GB/s
121.6 GB/s

Render Config

Shading Units
800
TMUs
40
ROPs
16
Compute Units
10
L1 Cache
16 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
12.00 GPixel/s
12.40 GPixel/s
Texture Rate
30.00 GTexel/s
31.00 GTexel/s
FP32 (float)
1,200 GFLOPS
1,240 GFLOPS
FP64 (double)
240.0 GFLOPS
248.0 GFLOPS (1:5)

Board Design

Slot Width
Dual-slot
Length
241 mm
9.5 inches
Width
111 mm
4.4 inches
Height
40 mm
1.6 inches
TDP
150 W
Suggested PSU
450 W
Outputs
2x DVI
1x S-Video
Power Connectors
2x 6-pin
Board Number
109-B50731-10

Graphics Features

DirectX
10.1 (10_1)
OpenGL
3.3
OpenCL
1.1
Vulkan
N/A
Shader Model
4.1

RV770 GPU Notes

Mobile Variant: M98
Codename: Wekiva
Graphics/Compute: GFX3
Display Core Engine: 3.1
Unified Video Decoder: 2.0

Latest Drivers:
Windows XP / 8:
Catalyst Software Suite 13.1 / 13.4 Beta

Windows Vista / 7:
Catalyst Software Suite 13.9

Other retail boards based on this design (17)

Name GPU Clock Memory Clock Other Changes
ASUS HD 4870 DK TOP
815 MHz 925 MHz
ASUS HD 4870 TOP
815 MHz 925 MHz
ASUS ROG Matrix HD 4870
770 MHz 920 MHz
HIS HD 4870 IceQ 4+ Turbo
780 MHz 1000 MHz
HIS HD 4870 IceQ 4+ Turbo 1 GB
770 MHz 1000 MHz 1024 MB
HIS HD 4870 Turbo
780 MHz 1000 MHz
Palit HD 4870 Sonic Dual
775 MHz 1000 MHz 2x DVI 1x DisplayPort
Palit HD 4870 Sonic Dual
775 MHz 1000 MHz 1x DVI 1x HDMI 1x DisplayPort 1x VGA
PowerColor HD 4870 LCS
800 MHz 950 MHz Single-slot
Sapphire HD 4870 Toxic
780 MHz 1000 MHz
Sapphire HD 4870 Toxic 1 GB
780 MHz 1000 MHz 1024 MB, 1x DVI 1x HDMI 1x VGA
Sapphire HD 4870 Vapor-X 1 GB
750 MHz 900 MHz 1024 MB, 1x DVI 1x HDMI 1x VGA
Sapphire HD 4870 Vapor-X 2 GB
750 MHz 900 MHz 2 GB, 1x DVI 1x HDMI 1x VGA
XFX HD 4870
750 MHz 900 MHz 2x DVI
XFX HD 4870 1 GB
750 MHz 900 MHz 1024 MB
XFX HD 4870 XXX
775 MHz 950 MHz
XFX HD 4870 XXX 1 GB
775 MHz 950 MHz 1024 MB
Nov 18th, 2024 15:23 EST change timezone

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