[FW] 新 APU 資訊

dom

http://www.marketwired.com/press ... YSE-AMD-1852095.htm

話效能提 升唔少
留意 note #1, #2

1. The new 2014 AMD A-Series low power APU platform, codenamed "Mullins," is expected to deliver up to 139 percent better productivity performance per watt when compared to the previous generation "Temash" platform. Testing conducted by AMD Performance Labs on optimized AMD reference systems. PC manufacturers may vary configuration yielding different results. PCMark 8 - Home score divided by TDP (W) is used to simulate productivity performance per watt; the Mullins platform (4.5W) scored 1809 while the Temash platform (8W) scored 1343. AMD "Larne" reference platform system used for both APUs. Temash-based AMD A6-1450 quad-core APU with AMD Radeon™ HD 8250 Graphics, 2x2GB of DDR3-1333MHz RAM (running at 1066MHz), Windows 8.1, 13.200.11.0 - 03-Sep-2013 driver. Pre-production engineering sample of "Mullins" quad-core APU with next generation AMD Radeon graphics (model number TBD), 2x2GB DDR3-1333MHz RAM, Windows 8.1, and unreleased reference driver. MUN-3

2. The new 2014 AMD A-Series mainstream APU platform, codenamed "Beema," is expected to deliver up to 104 percent better productivity performance per watt when compared to the previous generation "Kabini" platform. Testing conducted by AMD Performance Labs on optimized AMD reference systems. PC manufacturers may vary configuration yielding different results. PCMark 8 - Home score divided by TDP (W) is used to simulate productivity performance per watt; the Beema platform (15W) scored 2312 while the Kabini platform (25W) scored 1861. AMD "Larne" reference platform system used for both APUs. Kabini-based AMD A6-5200 quad-core APU with AMD Radeon™ HD 8400 Graphics, 2x2GB of DDR3-1600MHz RAM, Windows 8.1, 13.200.11.0 - 03-Sep-2013 driver. Pre-production engineering sample of "Beema" quad-core APU with next generation AMD Radeon graphics (model number TBD), 2x2GB DDR3-1600MHz RAM, Windows 8.1, and unreleased reference driver. BMN-3

yoyo348

AMD , 我支持

eieio

轉唔轉socket 先？
一陣實測又熱到唔正常就慘…

Stiggy930

First, we have Beema replacing Kabini, and with the change we get the AMD Security Processor (ARM Cortex-A5) and a reduction in TDP on some parts, with 10W being the minimum. Mullins does the same for Temash, only AMD uses SDP (Scenario Design Power) rather than TDP (Thermal Design Power), and the new APUs are ~2W compared to 3-4W for Temash. Apparently the TDP for Temash is 8W and the TDP for Mullins is 4.5W, and that’s what AMD uses for their performance per watt calculations.

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2013-11-14 13:12

AMD hasn’t disclosed clock speeds or anything else for the upcoming APUs, but given A6-1450 is clocked at 1000-1400MHz with the GPU core running at 300-400MHz, it is possible AMD was able to arrive at the above performance increases simply with higher clock speeds. Also possible is that similar to the Bobcat to Jaguar transition, AMD tweaked other elements of the Puma core (e.g. the scheduler could have more entries).

Core counts on the CPU side have remained the same: 2-4 cores. With the lower SDP of Mullins, AMD also notes that fanless quad-core tablets and laptops will now be possible, which definitely opens some additional doors. When we looked at Kabini performance (granted in a 15W TDP), we found the CPU performance was typically well ahead of Atom at the time, and even Silvermont/Bay Trail are only moderately ahead (and in some cases still slower). How things shake out with Mullins in the 2W market will be something to watch.

While we don’t know if the iGPU has added any additional cores, it remains GCN based and very likely uses the same cores as before, only with higher clocks. Consider that AMD’s GCN architecture breaks things down into Compute Units (CUs) with 64-cores per CU. The existing Kabini/Temash APUs have two CUs and 128 cores, while Hawaii as an example includes a staggering 44 active CUs in the R9 290X; Kaveri goes for the middle ground with up to 8 CUs (512 cores). In order to increase the number of cores in Beema/Mullins, AMD would have to make the jump from 2 to 3 CUs, a 50% increase; given the ~20% performance increases above, it’s far more likely these come from the same number of cores/CUs running at higher clocks than more cores running at lower clocks.

Finally, we will see a 4 cores AMD tablets?

Stiggy930

24% over Kabini 2Ghz

CPU performance increase is quite good actually.
   
or they push the CPU to ...
wilsonkf 發表於 2013-11-14 14:30

I doubt it can be pushed to 3 GHz.

I heard the design is sound until 2.5 GHz?

polarhei

回復 3# eieio

唔知道. 不過基於之前的行為, 出了兩個型號後, 有可能更新. 不像INTEL出一個,換一個.

Stiggy930

But you dont get 2x% improvement from pcmark from 2x% clock....
wilsonkf 發表於 2013-11-14 20:16

AnandTech is saying the chip is getting circuit level improvement too. Like tweaks implemented when transiting from bulldozer to piledriver.