ATI Mobility Radeon HD 4830

The AMD ATI Mobility Radeon HD 4830 is a slower clocked Mobility HD 4860 and based on the 40nm RV740 core. Therefore, it is similar to the desktop HD 4700 series. Because of the 40nm production process, the power consumption should be similar to the HD 4670 (according to rumors).

Instead of GDDR5 memory of the HD 4860, the 4830 can be only equipped with slow DDR3 or faster GDDR3. Therefore, the 128 Bit memory bus becomes a bottle neck and the performance is clearly degraded.

The gaming performance of the ATI Mobility Radeon HD4830 is sufficient for demanding games of 2009 in medium - high details. Our gaming benchmarks (see below) showed that a high preset in Crysis or NFS Shift resulted in barely playable framerates around 25 fps. Less demanding games, are playable in high resolution and detail settings.

The Mobility HD 4830 is based on the RV740 chip and features 640 stream processors (128 5-dimensional shader cores). These cores do the graphic work of the shader- and pixel pipelines of older GPUs. The stream processors are also called ALUs and are grouped in five-way VLIW units. Each of the five instructions of a VLIW bundle has to be independent from the others and therefore the performance depends on the optimization of the driver.

The Mobility Radeon HD 4830 includes the Avivo HD called video technology including an onboard soundchip for 7.1 sound output over HDMI or DisplayPort and the 2nd generation UVD (Unified Video Decoder). This UVD 2 supports full bitstream decoding of H.264/MPEG-4 AVC and VC-1 streams. In addition to this, it also supports dual video stream decoding and Picture-in Picture mode which makes the UVD full BD-Live compliant. Simplified, the Avivo HD technology handles all video tasks and enables the GPU to decode HD videos.

The HD4830 was replaced by the Mobility Radeon HD 5830, which features a higher shader count (800) and DirectX 11 capable shaders. Therefore, the gaming performance of the 5830 is better, but also the power consumption should be higher (same 40nm process, although more mature).

Compared to the desktop cards, the Mobility Radeon is similar to the ATI Radeon HD 4730. Still, the desktop 4730 offers a noticeable higher performance due to GDDR5 usage and higher clock speeds.

 

ManufacturerATI
Mobility Radeon HD 4800 Series

Mobility Radeon HD 4860

640 @ 650 MHz128 Bit @ 1000 MHz

Mobility Radeon HD 4850

800 @ 500 MHz256 Bit @ 850 MHz
Mobility Radeon HD 4830 640 @ 550 MHz128 Bit @ 700 MHz
CodenameM97
ArchitectureTerascale 1
Pipelines640 - unified
Core Speed *550 MHz
Memory Speed *700 MHz
Memory Bus Width128 Bit
Memory TypeGDDR3, DDR3
Shared Memoryno
DirectXDirectX 10.1, Shader 4.1
Transistors826 Million
technology40 nm
FeaturesPowerplay, CrossFireX support, 
Notebook Sizelarge
Date of Announcement03.03.2009
Information512 - 768 GFlops Computing Power
Link to Manufacturer Pagehttp://ati.amd.com/products/mobilityrade...
* The specified clock rates are only guidelines for the manufacturer and can be altered by them.

Benchmarks

3DMark Vantage - P GPU no PhysX 1280x1024
0% 100%
min: 3200      avg: 3200 (7%)     median: 3200 (7%)     max: 3200 Points
3DMark Vantage - P Result no PhysX 1280x1024
0% 100%
min: 3863      avg: 3863 (10%)     median: 3863 (10%)     max: 3863 Points
3DMark 06
0% 100%
min: 7155      avg: 7767.5 (26%)     median: 7767.5 (26%)     max: 8380 Points
3DMark 05 - Standard 1024x768
0% 100%
min: 14938      avg: 14938 (41%)     median: 14938 (41%)     max: 14938 Points
PCMark Vantage - Gaming Score 1024x768
0% 100%
min: 5351      avg: 5351 (20%)     median: 5351 (20%)     max: 5351 Points
Cinebench R10 - Shading 32Bit
0% 100%
min: 4250      avg: 4250 (35%)     median: 4250 (35%)     max: 4250 Points
- Range of benchmark values for this graphics card
- Average benchmark values for this graphics card

Game Benchmarks

The following benchmarks stem from our benchmarks of review laptops. The performance depends on the used graphics memory, clock rate, processor, system settings, drivers, and operating systems. So the results don't have to be representative for all laptops with this GPU. For detailled information on the benchmark results, click on the fps number.

Need for Speed Shift
low 800x600
64.9  fps      Compare
med. 1024x768
36.7  fps      Compare
high 1366x768
24.6  fps      Compare
» With all tested laptops playable in detail settings med..
Anno 1404

Anno 1404

2009
low 1024x768
132.3  fps      Compare
» With all tested laptops playable in detail settings low.
F.E.A.R. 2
low 800x600
168.1  fps      Compare
med. 1024x768
88.1  fps      Compare
» With all tested laptops playable in detail settings med..
Call of Duty 4 - Modern Warfare
low 800x600
169.7  fps      Compare
med. 1024x768
61.5  fps      Compare
» With all tested laptops playable in detail settings med..
Supreme Commander - FA Bench
med. 1024x768
43.1  fps      Compare
high 1024x768
35.7  fps      Compare
» With all tested laptops playable in detail settings high.
Crysis - GPU Benchmark
low 1024x768
99.4  fps      Compare
med. 1024x768
59.2  fps      Compare
high 1024x768
32.3  fps      Compare
» With all tested laptops playable in detail settings med..
Crysis - CPU Benchmark
low 1024x768
106.9  fps      Compare
med. 1024x768
54.4  fps      Compare
high 1024x768
27.5  fps      Compare
» With all tested laptops playable in detail settings med..

For more games that might be playable and a list of all games and graphics cards visit our Gaming List

Notebook reviews with ATI Mobility Radeon HD 4830 graphics card

HP Envy 15: Intel Core i7 720QM, 15.6", 2.4 kg
  Review » Review HP Envy 15 Notebook

  External Review » HP Envy 15

HP Envy 15-1050nr: Intel Core i7 720QM, 15.6", 2.6 kg
  External Review » HP Envy 15-1050nr

HP Envy 15-1060ea: Intel Core i7 720QM, 15.6", 2.4 kg
  External Review » HP Envy 15-1060ea

» Comparison of GPUs
Detailled list of all laptop GPUs with a short description. Classified and sorted by performance.

» Benchmark List
Sortable and restrainable list of all GPUs with benchmarks (e.g. 3DMarks).

» Notebook Gaming List
Which game can be played with my graphics card.

Class 1
GeForce GTX 590
GeForce GTX 580
Radeon HD 6970
GeForce GTX 570
GeForce GTX 560 Ti
Radeon HD 5850
Radeon HD 7770
Radeon HD 7770
GeForce GTX 460 768MB
Radeon HD 6790
Radeon HD 5770
GeForce GTX 550 Ti
Class 2
GeForce GTS 450
Radeon HD 4850
Class 3
Radeon HD 5670
GeForce GT 240
Radeon R6 M255DX
GeForce GT 430
Radeon HD 5570
GeForce GT 220
Radeon HD 6450 GDDR5
Class 4
Radeon R3 (Mullins/Beema)
Class 5
PowerVR GX6450
Radeon HD 4350
GeForce G 107M *
Chrome9HD *
Class 6
unknown *

* Approximate position of the graphics adapter

> Notebook / Laptop Reviews and News > FAQ / Tips / Technics > Comparison of Laptop Graphics Cards > AMD ATI Mobility Radeon HD 4830
Author: Klaus Hinum (Update: 2013-01-16)