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ATI Radeon HD 4830

Graphics Processor
RV770
Cores
640
TMUs
32
ROPs
16
Memory Size
512 MB
Memory Type
GDDR3
Bus Width
256 bit
GPU Chip
GPU
PCB Front
PCB Front
PCB Back
PCB Back
The Radeon HD 4830 was a mid-range graphics card by ATI, launched in October 2008. Built on the 55 nm process, and based on the RV770 graphics processor, in its RV770 LE variant, the card supports DirectX 10.1. The RV770 graphics processor is an average sized chip with a die area of 256 mm² and 956 million transistors. Unlike the fully unlocked Radeon HD 4870 Mac Edition, which uses the same GPU but has all 800 shaders enabled, ATI has disabled some shading units on the Radeon HD 4830 to reach the product's target shader count. It features 640 shading units, 32 texture mapping units and 16 ROPs. ATI has placed 512 MB GDDR3 memory on the card, which are connected using a 256-bit memory interface. The GPU is operating at a frequency of 575 MHz, memory is running at 900 MHz.
Being a single-slot card, the ATI Radeon HD 4830 draws power from 1x 6-pin power connectors, with power draw rated at 95 W maximum. Display outputs include: 2x DVI, 1x S-Video. Radeon HD 4830 is connected to the rest of the system using a PCI-Express 2.0 x16 interface. The card measures 246 mm in length, and features a single-slot cooling solution. Its price at launch was 130 US Dollars.

Graphics Processor

GPU Name
RV770
GPU Variant
RV770 LE
(215-0669075)
Architecture
TeraScale
Foundry
TSMC
Process Size
55 nm
Transistors
956 million
Die Size
256 mm²

Graphics Card

Release Date
Oct 21st, 2008
Generation
Radeon R700
(HD 4800)
Production
End-of-life
Launch Price
130 USD
Bus Interface
PCIe 2.0 x16
Reviews
43 in our database

Relative Performance

14%
GeForce 210
18%
GeForce 9400 GT
23%
Radeon HD 4550
29%
Radeon HD 5450
34%
Radeon HD 6450
36%
GeForce GT 520
44%
GeForce GT 220
58%
GeForce GT 430
59%
Radeon HD 5570
64%
Radeon HD 4670
67%
GeForce GT 440
69%
GeForce GT 240
79%
GeForce 9600 GT
84%
Radeon HD 5670
90%
GeForce GT 640
93%
GeForce 9800 GT
97%
Radeon HD 6670
100%
Radeon HD 4830
107%
Radeon HD 4770
113%
Radeon HD 4850
115%
GeForce GTS 250
118%
GeForce GTS 450
123%
Radeon HD 5750
140%
Radeon HD 7750
141%
Radeon HD 5770
144%
GeForce GTX 260
145%
Radeon HD 4870
146%
Radeon Vega 8
147%
GeForce GTX 550 Ti
149%
GeForce GTX 650
157%
Radeon HD 5830
165%
Radeon HD 6790
168%
Radeon HD 4890
174%
GeForce GTX 460
176%
Radeon RX Vega 11
177%
GeForce GT 1030
179%
GeForce GTX 275
180%
Radeon HD 7770 GHz Edition
180%
GeForce GTX 280
183%
GeForce GTX 465
192%
Radeon HD 6850
196%
GeForce GTX 285
210%
Radeon HD 5850
214%
GeForce GTX 650 Ti
214%
Radeon HD 7790
223%
Radeon RX 550
224%
GeForce GTX 470
232%
Radeon HD 6870
247%
Radeon HD 5870
255%
GeForce GTX 560 Ti
256%
Radeon HD 4870 X2
261%
GeForce GTX 750 Ti
262%
Radeon HD 6950
271%
GeForce GTX 295
275%
GeForce GTX 650 Ti Boost
277%
Radeon HD 7850
281%
GeForce GTX 480
295%
Radeon HD 6970
300%
Radeon R7 265
305%
Radeon R7 370
305%
Radeon RX 560
306%
GeForce GTX 660
307%
GeForce GTX 570
332%
GeForce GTX 950
335%
Radeon HD 7870 GHz Edition
343%
Radeon R9 270X
347%
GeForce GTX 660 Ti
348%
GeForce GTX 580
351%
GeForce GTX 1050
352%
Radeon HD 7950
358%
Radeon RX 460
359%
Radeon HD 5970
369%
GeForce GTX 760
397%
GeForce GTX 670
407%
GeForce GTX 960
418%
Radeon R9 380
420%
Radeon R9 285
425%
Radeon HD 7970
429%
GeForce GTX 680
439%
GeForce GTX 1050 Ti
450%
GeForce GTX 770
461%
Radeon HD 6990
472%
Radeon R9 280X
479%
GeForce GTX 590
479%
Radeon HD 7970 GHz Edition
531%
GeForce GTX 780
549%
GeForce GTX 1650
584%
Radeon RX 470
592%
Radeon R9 290
631%
Radeon R9 390
635%
Radeon R9 290X
643%
GeForce GTX 970
652%
GeForce GTX TITAN
657%
Radeon RX 570
661%
GeForce GTX 780 Ti
670%
Radeon R9 390X
673%
Radeon HD 7990
676%
Radeon RX 480
682%
GeForce GTX 690
719%
Radeon RX 580
733%
GeForce GTX 980
743%
GeForce GTX 1060 6 GB
743%
Radeon R9 FURY
747%
Radeon RX 590
817%
Radeon R9 295X2
831%
Radeon R9 FURY X
845%
GeForce GTX 980 Ti
909%
GeForce GTX TITAN X
953%
GeForce GTX 1660 Ti
958%
GeForce GTX 1070
1000%
Radeon RX Vega 56
1085%
GeForce GTX 1070 Ti
1113%
Radeon RX Vega 64
1113%
GeForce RTX 2060
1141%
GeForce GTX 1080
1310%
GeForce RTX 2070
1310%
Radeon VII
1374%
TITAN X Pascal
1409%
GeForce GTX 1080 Ti
1522%
GeForce RTX 2080
1761%
GeForce RTX 2080 Ti
Based on TPU review data: "Performance Summary" at 1920x1080

Clock Speeds

GPU Clock
575 MHz
Memory Clock
900 MHz
1800 MHz effective

Memory

Memory Size
512 MB
Memory Type
GDDR3
Memory Bus
256 bit
Bandwidth
57.60 GB/s

Render Config

Shading Units
640
TMUs
32
ROPs
16
Compute Units
8
L1 Cache
16 KB (per CU)
L2 Cache
256 KB

Theoretical Performance

Pixel Rate
9.200 GPixel/s
Texture Rate
18.40 GTexel/s
FP32 (float) performance
736.0 GFLOPS
FP64 (double) performance
147.2 GFLOPS (1:5)

Board Design

Slot Width
Single-slot
Length
9.69 inches
246 mm
TDP
95 W
Outputs
2x DVI
1x S-Video
Power Connectors
1x 6-pin
Board Number
B501-31

Graphics Features

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

RV770 GPU Notes

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