Haswell And 1.35 V Memory: Three DDR3 SO-DIMM Kits, Tested

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G.Skill Standard DDR3-1333

The ability to support high data rates on a CPU with an integrated memory controller requires a modern processor and properly programmed firmware. One of those requisites is often missing from previous-generation machines. G.Skill supports the broader market by producing lower-cost modules for those systems.

Sold under the G.Skill part number F3-1333C9D-16GSL as a dual-channel kit, CPU-Z misreports the tRAS of its F3-1333C9D-8GSL modules at 25 cycles in one of our test systems. Had our platform not been DDR3-1333-capable, DDR3-1066 CAS 7 is also supported.

Regardless of what CPU-Z said about the SPD table, our test platforms correctly set the 9-9-9-24 timings we were looking for at the memory’s highest-rated DDR3-1333 data rate.

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Thomas Soderstrom is a Senior Staff Editor at Tom's Hardware US. He tests and reviews cases, cooling, memory and motherboards.

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11 Comments Comment from the forums

Jaroslav Jandek

It'll be more difficult to explain why the -4770R saw so much less benefit from higher data rates than the -4770K.
The R version has 128MB of L4 cache. At 1280x720, it is large enough for all index and vertex buffers and most textures. That is why main memory speed doesn't significantly affect Iris Pro 5200...
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InvalidError

Having 128MB L4 cache certainly skews things around for IGP performance, no surprise there.
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mouse24

Huh, fairly surprised I didn't know about the 1.35v requirement. What happens if you pop in 1.5v in there? Is this just a power savings thing or did intel really mess with their memory controller for laptops?
Reply
masmotors

i wonder how those 1866 would do on a newish amd apus 6800k
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Isaiah4110

Wow! I know this article is about memory, but the game benchmark data for Iris Pro actually impresses me quite a bit!
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airplanegeek

Intel really should've made socketed cpus with Iris Pro
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spartan117x2

so dimm..much intel..wow speed
Reply
Crashman

12435372 said:
Intel really should've made socketed cpus with Iris Pro
Tell one of these companies that makes upgrade processors to solder the 4770R on an 1150 adapter :)

Reply
zodiacfml

AMD must have been very envious with this Iris Pro having embedded 128MB of fast memory....which should be plenty useful for their AMD's APUs.
Reply
de5_Roy

12436339 said:
AMD must have been very envious with this Iris Pro having embedded 128MB of fast memory....which should be plenty useful for their AMD's APUs.
intel claims that the edram costs around $80. that'd jack the a10 6800k price over $200 only to benefit the igpu (possibly the same with gddr5). imo, the weaker cpu cores wouldn't benefit much, if at all. that'd make the apus of poor value and people will argue against the apus claiming you can have a faster configuration under $200 (e.g. core i3 4110/fx6300 + radeon 7770/7750) without requiring the edram. as for core i7 4770R (and other R skus) - it's way too expensive. afaik, brix pro is barebones, the whole pc might cost near $800-1000 fully configured.

Reply