VIA Nano QuadCore L4800 socket: VIA NanoBGA2
The VIA Nano QuadCore L4800 uses the VIA NanoBGA2 package. It is a soldered 40 nm quad core part at 1.466 GHz with burst to 1.6 GHz and cannot be replaced.
- Socket
- VIA NanoBGA2
- Launched
- May 2011
- Cores and threads
- 4 and 4
- Base power
- n/a
- Codename
- CNQ
- Segment
- Embedded
- Family
- VIA Nano QuadCore
- Clocks
- 1.47 / 1.6 GHz
VIA Nano QuadCore L4800 specifications
| Cores | 4 |
|---|---|
| Threads | 4 |
| Core architecture | Isaiah cores on 40 nm |
| Clocks | 1.466 GHz base, 1.6 GHz burst |
| Cache | 4 MB L2 (2 × 2 MB) |
| Manufacturing process | 40 nm |
| Memory support | DDR2 and DDR3, single channel |
| VIA V4 bus | 1333 MHz to the companion chipset |
| Integrated graphics | None on package (chipset feature) |
| Multiplier | Locked |
| Package | nanoBGA2 (FCBGA, 400 balls, 21 × 21 mm, soldered) |
Motherboard compatibility
VIA Nano QuadCore L4800 needs a motherboard with a VIA NanoBGA2 socket. Chipset by chipset data for this codename is not recorded yet. See the VIA NanoBGA2 chipset list and the board maker's CPU support list.
VIA NanoBGA2 at a glance
| Type | BGA, 400 contacts |
|---|---|
| Package size | 21.0 × 21.0 mm |
| Introduced | May 2008 |
| Memory | DDR2 through the board chipset |
| Cooler mounting holes | Not applicable (soldered) |
What the Nano QuadCore L4800 is
VIA Nano QuadCore L4800 is a quad core CNQ processor that VIA released in May 2011 for soldered embedded and mobile boards. It runs at 1.466 GHz base with Adaptive Overclocking to 1.6 GHz where thermal headroom allows. Four cores give 4 threads with no Hyper-Threading. Cache is 4 MB of L2 in two 2 MB blocks, one per paired X2 die. Power is 40 nm TSMC silicon in the nanoBGA2 package.
The QuadCore pairs two Nano X2 dies on one package with a shared front side bus. Control workloads use 4 real cores at very low power. VIA aimed it at netbooks and embedded boxes against Atom and Brazos parts.
There is no on-die graphics on this package. Display and I/O hang off the companion chipset. The 1.6 GHz burst needs thermal headroom under the heatsink.
Socket and motherboard compatibility
The Nano QuadCore L4800 solders to VIA NanoBGA2 with 400 balls in a 21 by 21 mm footprint and cannot be moved. Embedded vendors validate the whole board for years of supply. A faster system means a new board.
The processor talks to its companion chipset over the VIA V4 bus. Board manuals decide slot wiring, so check lane counts per board rather than assuming desktop expansion.
Memory, PCIe and cooling
Memory support is DDR2 and DDR3 over a single 64 bit channel. Single channel operation is a hard limit of the platform, so size the soldered memory or single DIMM for the whole workload. ECC is not offered.
The V4 bus runs at 1333 MHz to the companion chipset, and PCIe, display and storage I/O all hang off that chip. Compact flash or small SSDs suit the bandwidth.
Cooling uses a low profile embedded heatsink under the rated envelope. Fanless operation is possible in ventilated chassis.
Upgrade paths
There is no CPU upgrade path on soldered nanoBGA2. The L4800 cannot be removed, so more speed means a new board. A nearby quad reference at lower clocks is the L4700 class.
A platform move means a new embedded board on a current package. Keep the old board for control duty after a wipe.
Frequently asked questions
What socket does the VIA Nano QuadCore L4800 use?
It uses VIA NanoBGA2, a soldered package. The chip cannot be removed.
How is the Nano QuadCore L4800 different from the L4700?
The L4800 runs at 1.466 GHz base with 1.6 GHz burst. The L4700 runs at 1.2 GHz base with 1.466 GHz burst.
What memory does the Nano QuadCore L4800 use?
DDR2 and DDR3 over a single 64 bit channel.
Can the Nano QuadCore L4800 be upgraded?
No. A faster system means a new board.
Sources and verification
- VIA QuadCore launch (TechSpot, pair of X2, 1333 MHz FSB, 4MB L2, May 2011)
- List of VIA Nano microprocessors (Wikipedia, QuadCore 40nm, nanoBGA2)
Facts last checked against these sources on . Page last edited on .