Radeon HD 4830 

Released October, 2008
  • 575 MHz
  • 512 MB GDDR3
5.6 Out of 10

Both cards easily went beyond 750 MHz core speeds which is more than 30% overclock.
by techPowerUp! (Oct, 2008)
AMD's HD 4830 may not be the super gaming card that can handle the highest detail settings at all resolutions, but for gamers on a small budget, running at 1280x1024 for example, it is a great choice.
by techPowerUp! (Oct, 2008)

Benchmarks Real world tests of the Radeon HD 4830

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon HD 4830

Face detection Data courtesy CompuBench

Radeon HD 4830
-1 mPixels/s
GeForce GT 9600
0.47 mPixels/s
Radeon HD 5450
-1 mPixels/s

Ocean surface simulation Data courtesy CompuBench

Radeon HD 4830
-1 frames/s
Radeon HD 5450
-1 frames/s

Particle simulation Data courtesy CompuBench

Radeon HD 4830
-1 mInteraction/s
Radeon HD 5450
28.61 mInteraction/s

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4830
Radeon HD 5450

Reviews Word on the street for the Radeon HD 4830

If this overclock is actually what you will see on retail cards then you could get one of these babies and overclock it close to HD 4870 levels, while saving a ton of money.

What People Are Saying Give it to me straight


The card is very quiet, while still running at acceptable temperatures under load.
by techPowerUp! (Oct, 2008)
All modern graphics cards are designed to withstand operating temperatures of up to 120°C. However, nobody dares to go close to that because users could burn their fingers which could result in a lawsuit.
by techPowerUp! (Oct, 2008)
While the idle temperature is quite low, the load temperatures are rather high (but still far from too hot).
by techPowerUp! (Oct, 2008)

Shading units

Retail cards might be affected by shader count issue.
by techPowerUp! (Oct, 2008)
It has only 560 shaders instead of the intended 640.
by techPowerUp! (Oct, 2008)
Compared to the bigger brother, the HD 4850, AMD reduced the number of shaders from 800 to 640.
by techPowerUp! (Oct, 2008)


Considering price/performance, the HD 4830 is one of the best offers on the market today only rivaled by some low-end NVIDIA cards.
by techPowerUp! (Oct, 2008)
Two, three or four HD 4830 cards can be combined in CrossFire to improve performance or image quality.
by techPowerUp! (Oct, 2008)
Last but not least, the clock frequencies were reduced to 575 MHz core and 900 MHz memory as well.
by techPowerUp! (Oct, 2008)


Those overclocks are incredible.
by techPowerUp! (Oct, 2008)
During testing I actually thought my overclocking program is broken.
by techPowerUp! (Oct, 2008)


It uses a big copper base to cool the GPU, memory and voltage regulation circuitry.
by techPowerUp! (Oct, 2008)
The GDDR3 memory chips are made by Qimonda (formerly Infineon) and carry the model number HYB18H512321BF-10.
by techPowerUp! (Oct, 2008)

Specifications Full list of technical specs


GPU brand ATI
GPU name RV770
Market Desktop
Clock speed 575 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 640
Texture mapping units 32
Render output processors 16
Compute units 8
Pixel rate 9.2 GPixel/s
Texture rate 18.4 GTexel/s
Floating-point performance 736 GFLOPS


Memory clock speed 900 MHz
Effective memory clock speed 1,800 MHz
Memory bus 256 bit
Memory 512 MB
Memory type GDDR3
Memory bandwidth 57.6 GB/s

noise and power

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