|Intel Core-i7 4770K Haswell Processor|
|Reviews - Featured Reviews: Processors|
|Written by David Ramsey|
|Saturday, 01 June 2013|
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AIDA64 Extreme Edition Tests
AIDA64 is FinalWire's full 64-bit benchmark and test suite utilizing MMX, 3DNow! and SSE instruction set extensions, and will scale up to 32 processor cores. An enhanced 64-bit System Stability Test module is also available to stress the whole system to its limits. For legacy processors all benchmarks and the System Stability Test are available in 32-bit versions as well.
All of the benchmarks used in this test- Queen, Photoworxx, ZLib, hash, and AES- rely on basic x86 instructions, and consume very little system memory while also being aware of Hyper-Threading, multi-processors, and multi-core processors. Of all the tests in this review, AIDA64 is the one that best isolates the processor's performance from the rest of the system. While this is useful in that it more directly compares processor performance, readers should remember that virtually no "real world" programs will mirror these results.
For this review, FinalWire provided us with a beta version of AIDA64 with some Haswell-specific optimizations.
The Queen and Photoworxx tests are synthetic benchmarks that iterate the function many times and over-exaggerate what the real-world performance would be like. The Queen benchmark focuses on the branch prediction capabilities and misprediction penalties of the CPU. It does this by finding possible solutions to the classic queen problem on a chessboard. At the same clock speed theoretically the processor with the shorter pipeline and smaller misprediction penalties will attain higher benchmark scores.
Like the Queen benchmark, the Photoworxx tests for penalties against pipeline architecture. The synthetic Photoworxx benchmark stresses the integer arithmetic and multiplication execution units of the CPU and also the memory subsystem. Due to the fact that this test performs high memory read/write traffic, it cannot effectively scale in situations where more than two processing threads are used, so quad-core processors with Hyper-Threading have no real advantage. The AIDIA64 Photoworxx benchmark performs the following tasks on a very large RGB image:
The new kid on the block starts out with a stumble, as the 4770K actually turns in a slightly lower score on the Queen test than its predecessor. It makes up for this with a slightly higher score in the Photoworxx test. As we've seen before, overclocking doesn't help Photoworxx scores.
In the ZLIB test, the Haswell is 6.8% better than the Ivy Bridge (curiously, the same percentage improvement we saw in Ivy Bridge over Sandy Bridge), while in the Hash test it's 14.4% better...again mirroring the Sandy Bridge->Ivy Bridge gap.
The performance improvement duplications continue in the AES test, where the Haswell CPU is 3.3% faster than the Ivy Bridge CPU. And, as with Ivy Bridge, overclocking Haswell actually slightly reduces its performance in this benchmark.
Let's move on to the PCMark 7benchmark.