In November 2006, NVIDIA launched their big time
enthusiast video card, the 8800 GTX. The 8800 series (G80) took
a real first step in graphics technology, including full support
for DirectX 10 and Shader Model 4. Since then, there have been
several different flavours of the G80 catering to enthusiasts
to mainstream users. While the $200 to $250 price point did have
options, there really wasn't a lot to get terribly excited about
if you were a serious gamer.
Fast forward a year later, where just last week
NVIDIA unleashed their 8800 GT. Ticking in a hair under
$300 on average, NVIDIA's latest barely fits under the mainstream
price point, but it offers the potential for enthusiast level
performance.
|
GeForce
8800 GT |
| Stream
Processors |
112 |
| Core
Clock (MHz) |
600
MHz (660 MHz for MSI) |
| Shader
Clock (MHz) |
1500
MHz (1650 MHz for MSI) |
| Memory
Clock (MHz) |
1800
MHz (1900 MHz for MSI) |
| Memory
Amount |
512MB |
| Memory
Interface |
256-bit |
| Memory
Bandwidth (GB/sec) |
57.6 |
| Texture
Fill Rate (billion/sec) |
33.6 |
The chart above outlines NVIDIA's reference specs.
Of note, the 8800 GTX has 128 Stream Processors and the 8800 GTS
currently has 96. The latter number will change to match the 8800
GT's 112, but that is an interesting statistic considering the
price. The memory and core speeds are also higher than both the
GTS and GTX, though the memory interface is lower than both cards.
MSI
NX8800GT-T2D512E-OC Video Card

Today we are going to be looking at a final, full
retail version of MSI's NX8800GT video card. The MSI product is
based directly off of NVIDIA's reference design with MSI's own
custom artwork on the cooler, so for now anyway, don't expect
anything out of the ordinary visually in the physical package.

The box art features the same CGI female as the
one silk-screened on the heatsink. The NX8800GT was wrapped in
an antistatic back and placed in it's own foam compartment. In
the lower compartment, all the extra cables and accessories are
tucked away here.

The MSI NX8800GT had no problems fitting in our
Cooler Master Stacker and Antec 900. Should your case have fan
attachments or hard drive clamps in the general area where the
rear of the card would be, you may have to do a bit of house work
to clear the general area up. The card measures 9" in length,
and the PCI-E power connection faces towards the front of the
ATX case, so account for about a half inch for the power connection.
As the product name, MSI NX8800GT-T2D512E-OC, implies,
the card is overclocked out of the box. The GPU core is clocked
at 660 MHz, 60 MHz above reference. The shader clock is also overclocked,
running 1650 MHz, 150 MHz faster than the reference design. It
is a PCI Express 2.0 design, which is forward thinking in upcoming
board designs, but is also backwards compatible with current motherboards.
The MSI NX8800GT is equipped with 512MB of GDDR3
memory clocked at 1900 MHz and has a 256-bit memory interface
capable of delivering up to 57.6 GB per second of memory bandwidth.
While the 256-bit memory interface is a bottleneck when compared
to the wider pipes of the GTS and GTX, MSI speeds the memory along
100 MHz above NVIDIA's specs.
The GPU itself is based on the 65nm fab process,
a shrink from the 90nm of the G80 series. The hardware features
a fully unified shader core which dynamically allocates processing
power to geometry, vertex, physics, or pixel shading operation.
High Dynamic Range (HDR) lighting capability is present and will
support 128-bit precision (32-bit floating point values per component).
This will obviously improve image quality and allow for more true-to-life
lighting and shadows. Dark objects can appear very dark, and bright
objects can be very bright, with visible details present at both
extremes, in addition to rendering completely smooth gradients
in between.
Another new item, originally introduced with the
G80, is Quantum Effects GPU-based Physics. Just as the name implies,
physics calculations will be handled by the GPU creating a more
realistic game environment. It will also free up the CPU to handle
other items such as game AI.
The MSI NX8800GT uses the same single slot cooler
as NVIDIA's reference design. The heatsink is aluminum based and
makes full contact with the core and memory on the card. This
makes the cooler itself more efficient so to speak as it's doing
a bit more than just keeping the GPU cool. The cooler itself does
get very warm though, but not warm enough to cause instability
in our test setup. Despite the rather smallish fan, on initial
power up, there is a high pitched whine that lasts about 2 seconds
before it throttles back to a much quieter mode.

According to NVIDIA's specifications, the power
draw is much lower with the new 8800 GT, using about 110W under
load. Obviously, if you're running SLI, this will use up more
power which is why we suggest using a quality PSU in the 500W
range and up. The MSI NX8800GT requires a PCIE power connection,
which most modern PSUs have, but MSI does include a dongle out
of the box.

Other than the card, MSI tosses in the required
cables, as well as one DVI-to-VGA adapters. There is also the
manuals and driver CD, but that is it. No game bundle is included,
which unless we saw an A-list title, we have no problem with this
decision if it keeps the consumer cost down.

Those of you on the HD bandwagon should know that
the MSI NX8800GT is HDCP compliant. Above, we can see the outputs
for dual-link DVI and VIVO. HD-DVD and Blu-Ray media is also supported
via NVIDIA's PureVideo HD technology. The card supports hardware
decode for playback of H.264, VC-1, WMV and MPEG-2 HD and SD movies.
High-Bandwidth Digital Content Protection (HDCP) is supported
by the hardware, allowing the playback to supported screens of
the aforementioned discs
Test Setup
AMD X2 5000+
MSI K9N Diamond SLI
2x1024MB Corsair XMS2 8000
Windows Vista Business 32-Bit
NVIDIA Driver Version: ForceWare 169.04
We'll be pitting the MSI NX8800GT directly against their own
NX8800GTX. We do not have ATI's latest to compare against, but
the NX8800GTX should make for an interesting comparison as it
is considerably more expensive than the 8800GT.
The games to be used for benchmarking are as follows:
Cysis SP Demo
Unreal Tournament 3 Demo
Call of Duty 4 Demo
The driver settings were manually configured for
AntiAliasing/Anisotropic Filtering disabled and set to "Quality"
via the video driver's control panel. All games were set to their
highest allowable default game settings, with the exception of
Crysis which we will explain shortly in the benchmark tests. All
games were tested using FRAPS, with audio enabled and a set resolution
of 1680x1050.
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