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Sapphire HD 4850

  • 100242L
Graphics Processor
RV770
Cores
800
TMUs
40
ROPs
16
Memory Size
512 MB
Memory Type
GDDR3
Bus Width
256 bit
Front GPU Chip
GPU Chip
GPU

Graphics Processor

GPU Name
RV770
GPU Variant
RV770 PRO
(215-0669065)
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
Generation
Radeon R700
(HD 4800)
Predecessor
Radeon R600
Successor
Evergreen
Production
End-of-life
Bus Interface
PCIe 2.0 x16

Clock Speeds

GPU Clock
625 MHz
Memory Clock
993 MHz
1008 MHz (+2%)
1986 Mbps effective
2 Gbps effective

Memory

Memory Size
512 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
63.55 GB/s
64.51 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
10.00 GPixel/s
Texture Rate
25.00 GTexel/s
FP32 (float)
1,000 GFLOPS
FP64 (double)
200.0 GFLOPS (1:5)

Board Design

Slot Width
Single-slot
TDP
110 W
Suggested PSU
300 W
Outputs
2x DVI
1x S-Video
Power Connectors
1x 6-pin
Board Number
109-B50131-00

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

Other retail boards based on this design (13)

Name GPU Clock Memory Clock Other Changes
ASUS HD 4850 CUcore TOP 1 GB
670 MHz 1004 MHz 1024 MB, Dual-slot, 2x DVI
ASUS HD 4850 TOP
680 MHz 1050 MHz
ASUS ROG Matrix HD 4850
625 MHz 993 MHz Dual-slot
HIS HD 4850 IceQ 4 TurboX
685 MHz 1100 MHz Dual-slot
Palit HD 4850 Sonic 1 GB
685 MHz 1000 MHz 1024 MB, Dual-slot
Palit HD 4850 Sonic Special
700 MHz 900 MHz GDDR5, Dual-slot, 1x DVI 1x HDMI 1x DisplayPort 1x VGA
PowerColor HD 4850 PCS+
675 MHz 1100 MHz GDDR4, 241 mm/9.5 inches
PowerColor HD 4850 PCS+ 1 GB
665 MHz 950 MHz 1024 MB, 241 mm/9.5 inches
Sapphire HD 4850
625 MHz 1008 MHz
Sapphire HD 4850 1 GB
625 MHz 993 MHz 1024 MB
Sapphire HD 4850 Toxic
675 MHz 1150 MHz
Sapphire HD 4850 Vapor-X
650 MHz 1000 MHz 1x DVI 1x HDMI 1x VGA
Sapphire HD 4850 Vapor-X 1 GB
650 MHz 1000 MHz 1024 MB, 1x DVI 1x HDMI 1x VGA
Apr 16th, 2024 11:17 EDT change timezone

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