Intel Workstation Road Map

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This is a guide to the Intel workstation road map as it stands in early 2009.

The Mac Pro and Xserve currently use these CPUs:

Mac Pro: Gainestown in 2.27 GHz (DP), 2.67 GHz (SP and DP), 2.93 GHz (SP and DP)

Xserve: Harpertown in 2.8 GHz and 3.0 GHz. Apple appears to be keeping to a 80 W TDP limit with the Xserve.

Contents

Penryn

Harpertown (Q4 2007)

12 MB L2 cache and 1600 MHz FSB unless otherwise noted.

80 W: 2.8 GHz ($797), 3.0 GHz ($1022)

120 W: 3.0 GHz ($958)

150 W: 3.2 GHz ($1279)

Harpertown (Q3 2008)

12 MB L2 cache and 1600 MHz FSB unless otherwise noted.

80 W: 2.8 GHz ($797), 3.0 GHz ($1022)

120 W: 3.0 GHz, 3.2 GHz

150 W: 3.4 GHz ($1493)

Nehalem (45 nm)

Gainestown (Q1 2009)

4 cores (8 threads) and 8 MB L3 cache unless otherwise noted. 3-channel RAM for higher performance is introduced here.

Single-processor models

1 QuickPath link. 130 W, DDR3-1333: 2.67 GHz ($284), 2.93 GHz ($562), 3.2 GHz ($999)

Dual-processor models

2 QuickPath links. 130 W, DDR3-1333: 3.2 GHz ($1600)

95 W, DDR3-1333: 2.67 GHz ($958), 2.8 GHz ($1172), 2.93 GHz ($1386)

80 W, DDR3-1067: 2.27 GHz ($373), 2.4 GHz ($530), 2.53 GHz ($744)

Westmere (32 nm)

Westmere is the 32 nm shrink of Nehalem with other improvements.

Gulftown (Q2 2010)

6 cores (12 threads) and 12 MB L3 cache.

Sandy Bridge (32 nm)

New microarchitecture with features like AVX (Advanced Vector Extensions) and improved power management. Preliminary specifications suggest 4-8 cores at up to 4 GHz, with 512 KB L2 cache/core and 2-3 MB L3 cache/core.

The variant that is expected to succeed Gulftown is likely to have 6 cores (12 threads).

Successors

Ivy Bridge is the 22 nm shrink of Sandy Bridge.

Haswell (22 nm) is the microarchitecture to succeed Sandy Bridge, will have fused multiply-add (FMA), and may start from 8 cores.

Other

Note: The CPUs listed here are not all the CPUs under the code names, but all the CPUs that are relevant to Apple's lineups.