Sapphire 780G Motherboard and Hybrid CrossFire
Similar to previous reviews, I wanted to look at glxgears, Unreal Tournament 2004, and several benchmarks featured in Phoronix's test suite. Again, I've opted to compare them to the same GeForce 6150/nForce 430 system I used in the previous benchmarks.
I initially expected to see the GeForce 6150 stay competitive with Sapphire's offerings due to driver issues in Linux, but the benchmarks coming up proved my expectations wrong.
Unfortunately, we won't be able to benchmark the HD3450 and 780G's integrated graphics in Hybrid CrossFire, as AMD has yet to bring CrossFire to Linux. It's a shame, because Hybrid CrossFire particularly would be a great benefit to not only open source gaming, but also the 3D desktop.
Unreal Tournament 2004
As I mentioned in the Windows portion of this review, Unreal Tournament 2004 is one of the few modern commercial games with a native Linux port. Other games falling in this category are DOOM 3, Quake 4, and Enemy Territory: Quake Wars, which all are based on DOOM 3's engine. On with the benchmarks.
The 780G's integrated graphics beat the GeForce 6150 by an average of 10FPS, whereas the Radeon HD3450 cranks the performance up to 58FPS. Between the 780G's 31FPS and the HD3450's 58FPS, the game would be perfectly playable under either platform.
glxgears won't necessarily say whether or not one card is better than another, as features between cards differ. However, when there's a large gap in performance under such a simple benchmark, one may wonder if this holds true. I don't.
The 780G's onboard graphics more than double the GeForce 6150's performance, while the HD3450 nearly triples it. Much like in UT2004, AMD's offerings have beaten nVidia's.
Linux Benchmarks: Phoronix Test Suite
Phoronix's test suite is a new member of the benchmark block, but my-oh-my is it powerful. It includes some of the most common Linux benchmarks, particularly the ones used by Phoronix in their own reviews.
I've selected their motherboard suite benchmarks, which include audio compression, hard drive performance, and gzip compression. Also included is a few program compilation benchmarks, but I've chosen to omit these results as they are heavily influenced by the processors, or at least more so than the audio compression.
The PI-AM2RS780G holds roughly a 20-30% advantage over the GeForce 6150/nForce 430 board. Some of this may be accounted for by the faster processor, but certainly not all of it.
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