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PCI-E x1 Graphics Performance with Galaxy GeForce 7300GT

By: Shawn Baker | NVIDIA GeForce GPU in Video Cards | Posted: Feb 6, 2007 5:00 am
TweakTown Rating: 8.5%Manufacturer: Galaxy Technology

Test System Setup


Processor(s): Intel Core 2 Duo E6600 @ 3150MHz (350MHz FSB 1:1)


Motherboard(s): ASUS P5B Deluxe (Supplied by ASUS)


Memory: 2 X 1GB G.Skill HZ PC8000 @ 350MHz 4-4-4-12 (Supplied by Bronet)


Hard Disk(s): Hitachi 80GB 7200RPM SATA 2


Operating System: Windows XP Professional SP2


Drivers: nVidia ForceWare 93.71 and DX9c


We didn't want to focus too much time on the performance aspects of the Galaxy graphics card. Although, since we have a regular Palit 7300GT DDR-3 that utilizes the full speed x16 slot, we thought that it was a good opportunity to find out if there is actually any difference between PCI-E x1 and PCI-E x16 bus speeds. As discussed in the introduction, there is a total of 500MB/s of bandwidth (Single Data Lane - Both Directions) available on x1 slots compared to 8000MB/s of bandwidth compared to x16 slots, so the results should be interesting.


It's not a perfect world, so our testing couldn't be entirely spot on. The Palit 7300GT comes with a slightly higher memory clock speed of 600MHz vs. 500MHz on the Galaxy 7300GT. It shouldn't make a huge amount of difference but it's something to keep in mind while looking at the benchmark results.


We are running a cut down version of our benchmarks while still covering simulation and real-world environments. We will actually be using the same layout as the Catalyst line up minus the inclusion of our High Quality tests which utilize AA and AF. These types of tests are really too much for this level of low-end graphics cards and it's pointless including those types of tests.


Let's get started now!




Version and / or Patch Used: Build 130


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For more information on the 3DMark05 benchmark, we recommend you read our preview here.



Even though both models carry DDR-3 memory (albeit Galaxy a little slower) and utilize the same core, the PCI-E x1 version really does sit a way behind, even more so at the higher resolution, which is important to keep in mind. It's at the higher resolutions that more bandwidth is required as more stress is placed on the 3D side of the system.

PNY GeForce 7300 GT, (256 MB) PCI Express Graphic Card


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