3 ms·

what's up with some of the tests? For example this one: https://www.purepc.pl/procesory/premiera_i_test_procesora_amd_ryzen_r7_1800x_dobra_zmiana?page=0,20 htt

what's up with some of the tests? For example this one: https://www.purepc.pl/procesory/premiera_i_test_procesora_amd_ryzen_r7_1800x_dobra_zmiana?page=0,20 https://www.purepc.pl/procesory/premiera_i_test_procesora_am... A Broadwell with 3300 Mhz (3700 Mhz boost) beats a Kaby Lake (Skylake...) with 4200 Mhz (4500 Mhz boost)? Can the Broadwell use the 128MB EDRRAM from the iGPU as a L4 cache if the iGPU is not used? Would that actually make such a difference?

dr_zoidberg 10y ago
> Can the Broadwell use the 128MB EDRRAM from the iGPU as a L4 cache if the iGPU is not used? Would that actually make such a difference? That's exactly what it does, and it gives you a "free"* ~20% increase in memory operations performance (which tends to be a ~20% increase in general performance). * not actually free because you paid for those 128MB EDRRAM...
- tutanchamun 10y ago
  Nice, now I'm wondering why Intel doesn't slap 128MB EDRAM on an Kaby Lake i7 4 core 8 thread and then release it for the enthusiast platform x99. Maybe even select chips to make it possible to release them at 5ghz. Of course with a large premium (expensive EDRAM etc.).
  - mee_too 10y ago
    Because they had no competition, so no desire for higher performance. They can easily remove the GPU from Kaby Lake, use that transistor/thermal budget for 4 additional cores and add 128MB of L4 cache for a monster CPU.
  - dr_zoidberg 10y ago
    The Iris chip (the extra EDRAM for GPU/L4) is seen by Intel as a performance improvement for mobile solutions (ultrabooks, MS Surface Pro, maybe Macbooks some day?) and not a desktop solution. But from a consumer point of view, it increases performance (either for graphics or for the whole system if I have a discrete GPU), and it can also help with GPU numerical processing, because you get "free" transfers from memory (L4) to graphics memory by flipping a bit (or a few bits) in hardware. Don't know why this wasn't expanded further, appart from the cost of the embedded RAM.
    - clarry 10y ago
      This is what I got frustrated with and decided to stop waiting & buy a Ryzen, in fact. I've been looking forward to an enthusiast segment desktop chip with eDRAM and Iris/Iris Pro (or better!) from Intel, for a few years now, but it hasn't surfaced.
seanalltogether 10y ago
It's hard to put any faith in the large spread of numbers presented by this article regarding gaming performance. Anandtech just recently did a review of the I7 7700K and pretty much all the cpus over $200 posted the same numbers since most games are gpu bound. http://www.anandtech.com/show/10968/the-intel-core-i7-7700k-91w-review-the-new-stock-performance-champion/6 http://www.anandtech.com/show/10968/the-intel-core-i7-7700k-...

dr_zoidberg 10y ago

> Can the Broadwell use the 128MB EDRRAM from the iGPU as a L4 cache if the iGPU is not used? Would that actually make such a difference? That's exactly what it does, and it gives you a "free"* ~20% increase in memory operations performance (which tends to be a ~20% increase in general performance). * not actually free because you paid for those 128MB EDRRAM...

tutanchamun 10y ago
Nice, now I'm wondering why Intel doesn't slap 128MB EDRAM on an Kaby Lake i7 4 core 8 thread and then release it for the enthusiast platform x99. Maybe even select chips to make it possible to release them at 5ghz. Of course with a large premium (expensive EDRAM etc.).
- mee_too 10y ago
  Because they had no competition, so no desire for higher performance. They can easily remove the GPU from Kaby Lake, use that transistor/thermal budget for 4 additional cores and add 128MB of L4 cache for a monster CPU.
- dr_zoidberg 10y ago
  The Iris chip (the extra EDRAM for GPU/L4) is seen by Intel as a performance improvement for mobile solutions (ultrabooks, MS Surface Pro, maybe Macbooks some day?) and not a desktop solution. But from a consumer point of view, it increases performance (either for graphics or for the whole system if I have a discrete GPU), and it can also help with GPU numerical processing, because you get "free" transfers from memory (L4) to graphics memory by flipping a bit (or a few bits) in hardware. Don't know why this wasn't expanded further, appart from the cost of the embedded RAM.
  - clarry 10y ago
    This is what I got frustrated with and decided to stop waiting & buy a Ryzen, in fact. I've been looking forward to an enthusiast segment desktop chip with eDRAM and Iris/Iris Pro (or better!) from Intel, for a few years now, but it hasn't surfaced.

seanalltogether 10y ago

It's hard to put any faith in the large spread of numbers presented by this article regarding gaming performance. Anandtech just recently did a review of the I7 7700K and pretty much all the cpus over $200 posted the same numbers since most games are gpu bound. http://www.anandtech.com/show/10968/the-intel-core-i7-7700k-91w-review-the-new-stock-performance-champion/6 http://www.anandtech.com/show/10968/the-intel-core-i7-7700k-...