Has anyone ever seen a chart of some kind that will show the possibility of CPU bottleneck with GPUs? I envision something like combining Tom's Gaming CPU Hierarchy Chart with their Graphics Card Hierarchy Chart, and showing what combinations begin to bottleneck. Or is this a dumb idea?
CPU Bottleneck Chart?
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Gam3r01
Titan
- Jan 12, 2013
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There are no official lists, and it mainly comes down to research and experience, however our good friend KKAW has compiled a list for users.
http://www.tomshardware.com/faq/id-2729891/bottlenecking-guide-chart-2015.html
http://www.tomshardware.com/faq/id-2729891/bottlenecking-guide-chart-2015.html
maddogfargo
Splendid
- Nov 28, 2006
- 3,344
- 8
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A few things I've learned over the years about CPU 'bottlenecking'.
Gaming performance is going to depend more on how well the software is coded and optimized for modern, multi-core CPUs. You can run pretty much any single GPU with any CPU and see minimal to no difference when the software is well optimized.
Certain game engines and systems (Havok, PhysX, GameWorks, TressFX, Mantle, Intel compiler etc.) are Intel, NVidia or AMD optimized and will do better on the hardware they are designed for. But most well engineered games are hardware agnostic.
In multi GPU setups, i7 will scale better than an i5 or FX 8 core CPU.
FX CPUs and 990 FX chipsets offer more PCIe lanes than comparably priced Intel setups. For this reason, they actually do very well in gaming. They will also scale almost as well as an i7 in multi-GPU setups, even though synthetic benchmarks show they should be further behind.
Intel systems have much better memory bandwidth and physics processing power. They also tend to perform much better in older games and those bound to fewer CPU cores, such as 2-4.
Windows 10 + DX 12 seems to give AMD a boost in performance, thanks to better multi-core optimization in the DX 12 subsystems.
Tom's is already looking at updating their charts. They recognize that their test games use 1, 2 and 4 CPU cores. With many modern games capable of using 6, 8 or more CPU cores, they see the need to update their test methods to keep up with hardware trends. So when you look at the hierarchy charts and average scoring, do it with the knowledge this method represents the average gaming performance of 2.3 CPU cores ( 1 + 2 + 4 = 7 / 3 = 2.3)
Gaming performance is going to depend more on how well the software is coded and optimized for modern, multi-core CPUs. You can run pretty much any single GPU with any CPU and see minimal to no difference when the software is well optimized.
Certain game engines and systems (Havok, PhysX, GameWorks, TressFX, Mantle, Intel compiler etc.) are Intel, NVidia or AMD optimized and will do better on the hardware they are designed for. But most well engineered games are hardware agnostic.
In multi GPU setups, i7 will scale better than an i5 or FX 8 core CPU.
FX CPUs and 990 FX chipsets offer more PCIe lanes than comparably priced Intel setups. For this reason, they actually do very well in gaming. They will also scale almost as well as an i7 in multi-GPU setups, even though synthetic benchmarks show they should be further behind.
Intel systems have much better memory bandwidth and physics processing power. They also tend to perform much better in older games and those bound to fewer CPU cores, such as 2-4.
Windows 10 + DX 12 seems to give AMD a boost in performance, thanks to better multi-core optimization in the DX 12 subsystems.
Tom's is already looking at updating their charts. They recognize that their test games use 1, 2 and 4 CPU cores. With many modern games capable of using 6, 8 or more CPU cores, they see the need to update their test methods to keep up with hardware trends. So when you look at the hierarchy charts and average scoring, do it with the knowledge this method represents the average gaming performance of 2.3 CPU cores ( 1 + 2 + 4 = 7 / 3 = 2.3)
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