|
While most of the high end graphics cards tend to get the big press,
a growing segment of specialized mid-market cards have been quietly
battling for your hard earned dollar. Recently PowerColor has
introduced the latest in a line of successful SCS3 passively cooled
cards, the HD4650 SCS3 edition. Targeted at the HTPC crowd the
SCS3 features an oversize passive cooling solution designed to offer
top notch performance with zero noise.
There is no doubt the SCS3 HD 4650 will perform silently thanks
to the passive cooling but with the tagline "Mesmerizing 3D Graphics
for True Gamers" right on the box, we will see if their HD4650 has
what it takes to please the gamers as well. With a street
price under $70, this may just be the budget HD card you have
been looking for.

Our review sample arrived without the factory packaging and
accessories you see here. Based on the above graphic taken
from the PowerColor site the packaging looks to be both attractive
and informative.

The real attraction isn't the packaging, its the huge SCS3 passive
cooler. With the heatsink running nearly the length of the card
this cooler should provide
performance at least as good as the puny small fans these cards are
usually saddled with. The heatsink is slightly bent on the
left side but this may be the result of our sample shipping without
the factory packaging. From this angle you can see the GPU
mounting plate is made of aluminum with the two copper heatpipes
running through the center.

The HD4650 is based on the reference design and sports the standard two DVI ports
and a single S-Video output. All ATI 4000 series cards are
capable of 7.1 audio output over HDMI with ATI's adapter
however the HDMI adapter is listed as optional for this model.

The oversized heatsink is suspended over the card by the two heat
pipes and just misses the capacitors. Although the heatpipe
offers coverage for the GPU, it does not cover the memory at all.
The DDR2 is left to dissipate heat through passive airflow.

This angle gives a good view of the two copper heatpipes. The
fins are evenly spaced and have several air vents cut through them
as seen here. The fins feel rather fragile but should provide
a lot of surface area for heat dissipation. The top of the
cooler sticks out just enough to risk taking a second slot in our
test PC.

The heatpipe structure is supported by the four spring tensioned
mounting screws as seen here. The copper and the red PCB look
good together though our sample has no manufacturers markings as of
yet.

Taking a closer look at the memory reveals the DDR2 is provided by Samsung. The
full data sheet for the DDR2 can be found on Samsung's site,
here.
Specifications:
|
Graphics Engine |
RADEON HD4650 |
|
Video Memory |
512MB DDR2 |
|
Engine Clock |
600MHz |
|
Memory Clock |
400Mhz x2 |
|
Memory Interface |
128bit |
|
DirectX Support |
10.1 |
|
Bus Standard |
PCIE 2.0 |
|
Video Input |
|
|
VGA Output |
Yes, By DVI to VGA converter |
|
HDTV Output |
Yes, By HDTV Cable |
|
TV Output |
Yes |
|
DVI Output |
DVI-I x 2 |
|
Dual-link DVI Output |
Yes |
|
HDMI Support |
Yes, By DVI to HDMI Adapter |
|
HDCP Support |
Yes |
|