Force3D Radeon HD 4870 512MB DHT review

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3 - Force3D Radeon HD 4870 512MB Freezer DHT

Force3D Radeon HD 4870 512MB Freezer DHT

Force3D submitted their Radeon HD 4870 with 512 MB memory size for a review. As explained on the first page, the cooler used is actually a DHT cooler. The cooler itself is heatpipe based with fins attached onto a copper mount, we'll show you all this in our photo-shoot.

The middle radial fan blows air through the fins and creates turbulence to move the heat from the fins to the air. The cooler itself really offers great performance. It is however at a constant RPM and does not throttle down when you are in desktop or 3D mode, making it noisy.

When we look at the PCB of the card, we immediately spot that the layout is 100% reference, this is not a customized PCB, though in combo with the cooler hopefully we will yield some good overclocking results. The RV770 GPU itself on the 4870 will run at a standard 750 MHz clock frequency. Let's have a peek at some specifications.

 

ATI Radeon
HD 4850

ATI Radeon
HD 4870
Force3D Radeon
HD 4870
# of transistors

965 million

965 million 965 million

Stream Processing Units

800

800 800

Clock speed

625 MHz

750 MHz 750 MHz

Memory Clock

2000 MHz GDDR3 (effective)

3600 MHz GDDR5 (effective) 3600 MHz GDDR5 (effective)

Math processing rate (Multiply Add)

1000 GigaFLOPS

1200 GigaFLOPS 1200 GigaFLOPS

Texture Units

40

40 40

Render back-ends

16

16 16

Memory

512MB GDDR3

512MB GDDR5 512MB GDDR5

Memory interface

256-bit

256-bit 256-bit

Fabrication process

55nm

55nm 55nm

Power Consumption (peak)

~110W

~160W ~160W

The memory used is GDDR5 and runs just like a regular 4870 at 4x900 MHz at 3600 MHz.

You can expect roughly a 160 Watt peak power consumption. At a 299 USD price, we expect this to be a very competitive product on the market. Last thing I need to mention, included in the box are:

  • Radeon HD 4870 with 512 MB GDDR5 memory | DHT cooler
  • Manual
  • Driver CD installation kit
  • Crossfire connector
  • DVI to D-sub adapter
  • DVI-HDMI adapter
  • Molex to 6-pin power converter (1x)
  • 3-way analog HDTV RCA cable
  • SVIDEO/composite video cable

Overall a little bit of a shy bundle, but the price of the product was kept low, close to the standard 512 MB model. So you get less bundled items yet more hardware for your money. But overall, looking at the product from a hardware point of view, you do gain the DHT cooler.

Force3D Radeon HD 4870 DHT

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