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 |
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.