Palit Revolution 700 Deluxe detailed
Radeon HD 4870 X2
The Radeon HD 4870 X2 is by far be the fastest "single" consumer graphics card anno summer 2008 and it is mighty impressive. Though that statement is not really fair, as this single graphics cards obviously does have 2 GPUs embedded. The combination of the two RV770 processors used and the excellent bandwidth the GDDR5 memory provides for these graphics processors to do it's workload in, is breathtaking.
You'll now get to play around with 2.4 TFLOPS of RAW computing power.There are some distinct advantages to be found for GDDR5 memory used on the 4870 products. It's has much higher frequency based memory versus tight timings. GDDR5 memory will leverage overall peak bandwidth to 3.6 Gbps / 3600 MHz effectively. And that's just fanatical fast (GDDR3 on 4850 = 2.0 Gbps). And heck, it's just the beginning. I will not be surprised to see GDDR5 running at 4,5 maybe even 6 GHz in the upcoming 12 months.
The memory bandwidth is massively important to the RV770, but next to that there is a significant higher clock frequency (opposed to the 4850 X2) for the core/shader domain, 750 MHz will be the default clock frequency and memory wise again... the frequency is 3600 MHz. The TDP for this product is set at 286 Watt, which is a lot.
Pricing then, obviously the more expensive memory and higher yielded processors will take it's toll at the pricing and unfortunately it passed the upper 499 USD plafond. The product will have an introduction price set at 549 USD or roughly 349 EUR.
|
ATI Radeon |
HIS Radeon |
ATI Radeon HD 4870 X2 | |
| # 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 |
2048MB GDDR5 |
|
Memory interface |
256-bit |
256-bit |
256-bit |
|
Fabrication process |
55nm |
55nm |
55nm |
|
Power Consumption (peak) |
~110W |
~120W |
~160W |
Palit Revolution 700 Deluxe - Radeon HD 4870 X2
Today we have the opportunity to review a customized retail sample of the Radeon HD 4870 X2 as well. The card comes from Palit, and as you have noticed in our intro, they tried to do something very different here.
There are three distinct features on this product that set's it aside from the competition.
- Diminutive memory overclock at 950 MHz (x4).
- Customized 3-slot heatpipe cooling
- Additional display connectivity (VGA/HDMI/DVI/Display port).
The Radeon HD 4870 X2 product will run at a stock 750 clock frequency and comes with 2048MB GDDR5 memory (framebuffer). They memory runs slightly faster though at 950 MHz (3800 MHz effective). You can expect roughly a 286 Watt peak watt power consumption. At a 539 USD price, it's not the cheapest card on the market today, but granted, a mighty impressive one. I do expect the prices to drop further under 499,- Typically this happens when there is enough volume availability of the product which still is a bit of a difficulty in some regions.
So while the overall looks of the card are okay, I gotta tell ya .. it's really bulky with its 3-slot width and that will definitely not cater everybody. The cooler itself consists out of two 80mm fans rated at 0.35A with a speed of 3500rpm delivering 34CFM at 35.7dBA. It is a 4 heatpipe based cooling solution.
Included in the box are:
- Graphics card
- HDMI to DVI Dongle x 1
- Driver CD
- 8-pin Molex converter cable
The software bundle is the most scarce I've ever seen, it's well .. nothing really. No additional software in the form of full games, cables not even a CrossfireX connector.
