Haswell G3220 Benchmarks & No. of EU's in GT1

[darchon]

Hello CHADBOGA, hope you're still following this thread a bit, even though the last message was from 2-3 months ago.

I'm looking at your CPU-Z screenshot and see that the memory is operating at 666 MHz, even though you stated you put in DDR3-1600 memory.
Did you enable the XMP profile in the BIOS?
I mean, CPU-Z should say that the memory is running at 800MHz.

The reason I'm asking, is because I have a celeron G1820 and a set of DDR3-1600 memory, and according to CPU-Z, it's running at 700MHz, with XMP profile1 enabled in the BIOS.
So on my board/cpu/memory combination, I can't get the listed memory speed.
And I'm wondering if the same is true for you.

 

[gammaray]

the way i see it is, 1600mhz will work but will operate at 1333mhz, unless you overclock the cpu via the front side bus

 

[darchon]

Actually, there's a separate memory multiplier. On my Celeron G1820 my BIOS says I can't increase it above 14x which explains the 700MHz memory speed reported in CPU-Z (1400 MHz double data rate, given a BCLK of 100MHz).

I'm just wondering if this 14x memory multiplier is a limitation of my CPU, or if the BIOS/Motherboard is somehow getting in the way.

And yes, I understand I can run my memory at a slower speed, but I prefer running it at the listed speed since that's what I paid for.

 

[ShintaiDK]

Only 1333Mhz supported on G1820

http://ark.intel.com/products/78955/Intel-Celeron-Processor-G1820-2M-Cache-2_70-GHz

 

[darchon]

Yes... 1333MHz is the officially supported frequency, the memory controllers on most intel chips can however handle much more.

For example, take a look at the CPU-Z screenshots at: http://www.legitreviews.com/corsair-vengeance-pro-1866mhz-ddr3-dram-review_121277/3
There you see a i7-4770k running DDR3-1866 memory, even though according to http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz it only supports DDR3-1600.
Or even read Anandtech's own piece on memory scaling for Haswell: http://anandtech.com/show/7364/memory-scaling-on-haswell.
There they even run Haswell's on DDR3-3000.

 

[ShintaiDK]

Yes... 1333MHz is the officially supported frequency, the memory controllers on most intel chips can however handle much more.

For example, take a look at the CPU-Z screenshots at: http://www.legitreviews.com/corsair-vengeance-pro-1866mhz-ddr3-dram-review_121277/3
There you see a i7-4770k running DDR3-1866 memory, even though according to http://ark.intel.com/products/75123/Intel-Core-i7-4770K-Processor-8M-Cache-up-to-3_90-GHz it only supports DDR3-1600.
Or even read Anandtech's own piece on memory scaling for Haswell: http://anandtech.com/show/7364/memory-scaling-on-haswell.
There they even run Haswell's on DDR3-3000.

K models are unlocked. Thats the difference.

 

[darchon]

I always thought that the unlocking only referred to the clock multiplier, not to any of the other multipliers...
Do you perhaps know where I can find more information what in particular is "unlocked" in the Haswell K-versions?

 

[darchon]

Also see http://forums.anandtech.com/showthread.php?t=2323684 for running DDR3-2400 on a non-k Haswell, with a standard 100 MHz BCLK.
Though that is still with a Z87 motherboard.
Hence my earlier question if the "limited" DRAM speed is due to my choice in CPU (G1820), or in choice of motherboard (H81 chipset).
And since the OP was also using a H81 chipset board, with a CPU that's also only rated for 1333 MHz, I was wondering if he sees the same memory scaling problems.

 

[bgt]

LOL. If this is the case, what a joke.

My friend is only planning to run this computer to his TV via HDMI, will I likely have any issues there?

No, my Pentium G3220/ G1820 run ok at HD.

 

[CHADBOGA]

Hello CHADBOGA, hope you're still following this thread a bit, even though the last message was from 2-3 months ago.

I'm looking at your CPU-Z screenshot and see that the memory is operating at 666 MHz, even though you stated you put in DDR3-1600 memory.
Did you enable the XMP profile in the BIOS?
I mean, CPU-Z should say that the memory is running at 800MHz.

The reason I'm asking, is because I have a celeron G1820 and a set of DDR3-1600 memory, and according to CPU-Z, it's running at 700MHz, with XMP profile1 enabled in the BIOS.
So on my board/cpu/memory combination, I can't get the listed memory speed.
And I'm wondering if the same is true for you.

Hi Darchon,
I did use the XMP profile, but as the computer is now at my friend's place, I don't have it handy to check on any settings.

 

[CHADBOGA]

No, my Pentium G3220/ G1820 run ok at HD.

For now, whilst it lives, we have set it up to use the trusty old ATI HD4550 video card to handle all the GPU work.