ATi Radeon HD 4890 

Released April, 2009
  • 850 MHz
  • 1 GB GDDR5
2.3 Out of 10

To find the maximum overclock of our card we used a combination of ATITool's successor and our benchmarking suite.
by techPowerUp! (Apr, 2009)
Many partners will be offering overclocked boards as well ranging up to 1000 MHz core speed.
by techPowerUp! (Apr, 2009)

Benchmarks Real world tests of the Radeon HD 4890

PassMark Industry standard benchmark for overall graphics card performanceData courtesy Passmark

Radeon HD 4890

T-Rex (GFXBench 3.0) Data courtesy CompuBench

Radeon HD 4890
GeForce GTX 970
GeForce GTX 970

Sky Diver Factor Data courtesy FutureMark

Radeon HD 4890

Cloud Gate Factor Data courtesy FutureMark

Radeon HD 4890

Reviews Word on the street for the Radeon HD 4890

You may combine up to four HD 4890 cards in CrossFireX for better performance and image quality.

What People Are Saying Give it to me straight


At 1920 x 1200, performance increments of 92.3%, a near-perfect scaling is observed, which is impressive indeed.
by techPowerUp! (Apr, 2009)
8.0PowerColor's HD 4890 PCS can impress with great performance right out of the box.
by techPowerUp! (Apr, 2009)
The card offers considerably improved performance over the HD 4890 reference design and can beat the GeForce GTX 280.
by techPowerUp! (Jun, 2009)


Two six pin PCI-Express power connectors are required to supply additional power to the graphics card.
by techPowerUp! (Apr, 2009)
Power is delivered to the card via two six pin power connectors.
by techPowerUp! (Aug, 2009)
This means that any decent power supply should be able to power such a dual HD 4890 rig.
by techPowerUp! (Apr, 2009)

Multi card

Once the drivers are up and running, you will be greeted by a message from ATI's Catalyst Control Center, that a CrossFire compatible configuration has been detected and that it would be best if you enabled CrossFire.
by techPowerUp! (Apr, 2009)
After installing the cards you need to put both CrossFire bridges across the CF connectors, hook up the power and you are ready to go.
by techPowerUp! (Apr, 2009)
It's now 1:46 AM here and I tested the HD 4890 CrossFire setup fan noise.
by techPowerUp! (Apr, 2009)


This is very nice for overclockers because they can now change both voltages via software.
by techPowerUp! (Apr, 2009)
Voltage controller does not support software adjustments.
by techPowerUp! (Apr, 2009)
At its suggested retail price of US $249, the MSI HD 4890 SOC is a decent buy for its target buyers, gamers looking for peace of mind when it comes to high-definition gaming.
by techPowerUp! (Aug, 2009)


Overall the power consumption is very reasonable.
by techPowerUp! (Jun, 2009)
If you remember the last page, power consumption of this card is really high.
by techPowerUp! (Aug, 2009)
In both idle and load the card draws a lot of power, making it the least efficient card in our test group when considering performance per Watt.
by techPowerUp! (Apr, 2009)

Specifications Full list of technical specs


GPU brand ATI
GPU name RV790
Market Desktop
Clock speed 850 MHz
Is dual GPU No
Reference card None

raw performance

Shading units 800
Texture mapping units 40
Render output processors 16
Compute units 10
Pixel rate 13.6 GPixel/s
Texture rate 34 GTexel/s
Floating-point performance 1,360 GFLOPS


Memory clock speed 975 MHz
Effective memory clock speed 3,900 MHz
Memory bus 256 bit
Memory 1,024 MB
Memory type GDDR5
Memory bandwidth 124.8 GB/s

noise and power

TDP 190W
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