Evaluating Two 1TB NVMe Drives with Similar NAND, Similar Controller: XPG SX8200 Professional vs HP EX950

Retail drives primarily based on the Silicon Movement SM2262EN controller have arrived. The ADATA SX8200 Professional and HP EX950 are practically similar drives, changing the flagship fashions of the 2 manufacturers' final two manufacturers.

Silicon Movement's first NVMe SSD controller got here very near a model 1.zero product. Regardless of all of the PR and advertising and marketing actions, not one of the merchandise utilizing this SM2260 controller may compete with high-end drives like Samsung's. Silicon Movement (SMI) adopted go well with final 12 months with a second-generation controller that fully modified the sport: drives with the SM2262 high-end controller set a number of efficiency data and have been far cheaper than NVMe SSDs from high manufacturers. Now, a brand new wave of high-end SMI-based drives has come in the marketplace, powered by the SM2262EN controller, a minor replace to the SM2262, which is actually model 2.1 of Silicon Movement's NVMe controller structure.

Evaluate and examine Two practically similar high-end drives

Final 12 months we reviewed an engineering instance of platform SM2262EN with an early firmware model. Immediately we take a look at two finish buyer merchandise primarily based on the identical controller. The ADATA XPG SX8200 Professional and HP EX950 are a direct substitute for 2 of final 12 months's most profitable NVMe SSDs (the SX8200 and EX920 which used the older SM2262 controller). Collectively, these two drives have dominated the buyer NVMe marketplace for practically a 12 months with the very best mixture of excessive efficiency and low costs.

comparing two 1tb nvme drives with same nand same controller xpg sx8200 pro vs hp ex950 - Evaluating Two 1TB NVMe Drives with Similar NAND, Similar Controller: XPG SX8200 Professional vs HP EX950

1549472439 626 comparing two 1tb nvme drives with same nand same controller xpg sx8200 pro vs hp ex950 - Evaluating Two 1TB NVMe Drives with Similar NAND, Similar Controller: XPG SX8200 Professional vs HP EX950

Silicon Movement has nonetheless not described intimately what modifications the SM2262EN brings; It's nonetheless an Eight-channel NVMe controller with a PCIe three.zero x4 host interface and a pair of Arm Cortex-R collection cores. What has modified drastically is the firmware that has been tailored by Silicon Movement for the best potential peak efficiency. On this means, drive suppliers can draw consideration to efficiency specs that may compete with the quickest flash-based SSDs in the marketplace. Nevertheless, these specs normally have little relation to actual efficiency. The SM2262EN's controller and firmware platform makes very completely different compromises than the SM2262, and the SM2262EN's peak efficiency enhancements can have unavoidable prices elsewhere.

comparing two 1tb nvme drives with same nand same controller xpg sx8200 pro vs hp ex950 - Evaluating Two 1TB NVMe Drives with Similar NAND, Similar Controller: XPG SX8200 Professional vs HP EX950

Controller Diagram for Silicon Movement SM2262 (EN)

The important thing introduced enhancements for SM2262EN drives in comparison with their predecessors are write speeds, which improve sequential and random write efficiency by 50% or extra. Sequential and random reads have additionally improved, however by a modest 10-20%. Aside from these modifications, the brand new SM2262EN drives are drop-in substitute for outgoing fashions with related write endurance and energy consumption ranges. The costs for the brand new fashions are larger due to their novelty, however we count on them to fall again to the identical degree as their predecessors as quickly because the inventory of older fashions involves an finish (which is already the case for some capacities).

The ADATA XPG SX8200 Professional

ADATA's XPG sport model has been publishing storage drives for a number of generations. The older SX8200 was standard, and in December, the corporate launched a SX6000 Lite for the low-cost market. The SX8200 is designed as an XPG efficiency drive and presents capacities from 256 GB to 2 TB.

ADATA XPG SX8200 Professional specs

capability
256 GB
512 GB
1TB
(1024 GB)
2 TB

regulator
Silicon Movement SM2262DE

Nand Flash
Intel / Micron 64L 3D TLC

Type issue, interface
double sided M.2 2280 PCIe three x4 NVMe 1.three

Sequential studying
3500 MB / s
3500 MB / s
3500 MB / s
TBD

Sequential writing
1200 MB / s
2300 MB / s
3000 MB / s
TBD

Occasional studying
220okay IOPS
390okay IOPS
390okay IOPS
TBD

Random writing
290okay IOPS
380okay IOPS
380okay IOPS
TBD

guarantee
5 years

Write stamina
160 TB
zero.34 DWPD
320 TB
zero.34 DWPD
640 TB
zero.34 DWPD
TBD

The primary three drives are out of the gate first, whereas the 2TB might be on the cabinets later this 12 months. For this check, we check the 1 TB mannequin utilizing the SM2262EN controller and IMFT 64-layer 3D TLC NAND controller.

The HP EX950

Usually, HP is a reputation customers could affiliate with pure OEM builds and designs. Nevertheless, the corporate has two choices for its SSD enterprise: itself for its personal methods or straight for system integrators or finish customers. As with the opposite drive on this check, the EX950 replaces a very talked-about drive, the EX920. HP will provide three fashions from 512 GB to 2 TB.

HP EX950 specs

capability
512 GB
1TB
(1024 GB)
2 TB
(2000 GB)

regulator
Silicon Movement SM2262DE

Nand Flash
Intel / Micron 64L 3D TLC

Type issue, interface
double sided M.2 2280 PCIe three x4 NVMe 1.three

Sequential studying
3500 MB / s
3500 MB / s
3500 MB / s

Sequential writing
2250 MB / s
2900 MB / s
2900 MB / s

Occasional studying
390okay IOPS
410okay IOPS
410okay IOPS

Random writing
370okay IOPS
370okay IOPS
380okay IOPS

energy consumption
lively
5.21 W
6.93 W
6.93 W

Idle
zero.73 W
zero.73 W
zero.73 W

guarantee
5 years

Write stamina
320 TB
zero.34 DWPD
650 TB
zero.36 DWPD
1400 TB
zero.38 DWPD

All three drives are began concurrently with the SM2262EN controller and the 64-layer 3D TLC NAND from IMFT. For this check, we’ve the 1TB and 2TB drives for testing.

Similarities and Variations

The specs for the ADATA and HP drives are very related, however there are just a few minor variations. HP has dropped the 256GB mannequin, so the lineup now begins at 512GB. Each firms have added a 2 TB mannequin, though ADATA's 2 TB is just not but accessible. Due to this fact, we’ve no precise efficiency and endurance for this. ADATA's sequential and random write speeds are barely larger, and HP's random reads for the 1TB and 2TB fashions are barely larger. The 2TB HP EX950 is a bit uncommon, because it solely offers about 2000GB of usable storage when the smaller capacities and ADATA drives use a regular capability of two capacities (~ 1024GB for the 1TB fashions). As well as, the two TB HP EX950 is definitely about 310 MB smaller than a typical 2000 GB drive.

As ordinary, ADATA additionally has a extra gamer-oriented mannequin known as XPG GAMMIX S11 Professional, which differs solely in the usage of a fancier warmth spreader. The SX8200 Professional comes with a flat black heatspreader that customers can set up, and the HP EX950 has no heatspreader besides what's included within the controller package deal.

1549472439 854 comparing two 1tb nvme drives with same nand same controller xpg sx8200 pro vs hp ex950 - Evaluating Two 1TB NVMe Drives with Similar NAND, Similar Controller: XPG SX8200 Professional vs HP EX950
ADATA 1TB, HP 1TB, HP 2TB

The ADATA SX8200 Professional and HP EX950 use barely completely different PCBs, however match the cardboard layouts of their predecessors. ADATA has adjusted the structure barely extra and introduced the controller a bit nearer to the M.2 connector and different small energy management elements between the controller and NAND. The HP drives have a structure that may be very near Silicon Movement's reference design, aside from the LED pair in the course of the cardboard, which blinks when the drive is lively. These drives are all double sided and subsequently not supposed to be used within the thinnest Ultrabooks.

The two TB engineering pattern examined final 12 months used DDR4 DRAM, however not one of the retail merchandise are switching from DDR3. All 1 TB samples use Nanya DRAM, whereas the two TB EX950 makes use of a denser Micron DRAM. HP normally places its personal brand on the SMI controllers. Nevertheless, our check samples use normal packaging with the brand and half numbers from Silicon Movement. ADATA does its personal NAND binning and places its brand on the packages. The HP drives use unnamed packages with normal IMFT half numbers for his or her 64-layer 3D TLC NAND package deal.

AnandTech 2018 Client SSD Testbed

CPU
Intel Xeon E3 1240 v5

Motherboard
ASRock Fatal1ty E3V5 Efficiency Gaming / OC

Chipset
Intel C232

Reminiscence
4x Eight GB G.SKILL Ripjaws DDR4-2400 CL15

Graphics
AMD Radeon HD 5450, 1920 x 1200 at 60 Hz

Software program
Home windows 10×64, model 1709

Linux kernel model four.14, fio model three.6

Specter / meltdown microcode and OS patches, as of Could 2018

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