Supermicro vs Gigabyte vs ASUS: 4U 8-GPU servers compared by the makers' own documents

Supermicro, Gigabyte and ASUS 8-GPU servers in one table

Supermicro, Gigabyte and ASUS each build an air-cooled 4U server for eight double-width PCIe GPUs of up to 600 W: the SYS-422GA-NRT, the G494-SB4-AAP2 and the ESC8000-E12. By the makers' own pages and datasheets, read 12 November 2026, the three differ in the processor family, in the way the GPUs connect to the processors, in the ambient temperature stated for eight 600 W cards, in the power supplies and in depth, which runs from 737 mm to 1,000.5 mm. This page prints those differences as the makers state them and ranks none of the three.

Supermicro's product page for the SYS-422GA-NRT (©2026); Gigabyte's product page and datasheet for the G494-SB4-AAP2 (datasheet last updated 20 July 2026); ASUS's product page and datasheet for the ESC8000-E12 (undated); all read 12 November 2026.

We supply Supermicro, Gigabyte and ASUS servers per project. Send us the cards, the rack depth and the supply-air temperature and we reply with a configuration and a quote within one business day.

Gigabyte's server business is run by Giga Computing, which signs its press releases as "Giga Computing, a subsidiary of GIGABYTE Group". The product pages carry the GIGABYTE brand, and this page writes Gigabyte.

Which models are compared

Each maker has several eight-card models. We took the Intel model that each maker's documents describe most completely and that names NVIDIA's current data-centre cards. The AMD counterparts are the Supermicro AS -5126GS-TNRT, a 5U server, the Gigabyte G494-ZB4-AAP2 and the ASUS ESC8000A-E13. All of them had a product page with a specification table on 12 November 2026.

ASUS names the NVIDIA RTX PRO 6000 Blackwell Server Edition from the ESC8000-E12 and E12P with Intel Xeon 6 and from the ESC8000A-E13, E13P and E13X with AMD EPYC on. The pages of the older ESC8000-E11P and ESC8000A-E12 do not name the card and list four 3,000 W supplies. Mind the letter: the ESC8000-E12 is the current Intel model, the ESC8000A-E12 an older model for AMD EPYC 9004. Gigabyte's page for the G493-ZB4-AAP1, labelled "Legacy", and Supermicro's page for the AS -4125GS-TNRT2, which lists the Max-Q, do not name the card either.

Processors and the path from CPU to GPU

The three Intel models do not share a socket. Supermicro's SYS-422GA-NRT takes two Xeon 6900-series processors with P-cores in LGA-7529, each with up to 500 W, 128 cores and 256 threads. Gigabyte's and ASUS's models take the Xeon 6700/6500 series in LGA 4710 with up to 350 W.

The GPU path is described in each maker's own terms. Supermicro writes "PCIe 5.0 x16 Switch Dual-Root" for the SYS-422GA-NRT and "Direct Attached" for its AMD model. Gigabyte names the switch behind each slot, four GPU slots "from PEX89144_0" and four "from PEX89144_1" on both G494 models, and does not use the words single root or dual root. ASUS states for the ESC8000-E12 that "GPU, NIC/DPU, and dual M.2 boot drives are directly connected to the CPU", for the ESC8000A-E13 that its GPUs are "directly connected to the CPU", and for the E12P and E13P that they use the "Broadcom PEX89000 series of switches". Our article on how many GPUs fit in one server explains lanes and switches.

NVLink bridges concern the H200 NVL; the RTX PRO 6000 Blackwell Server Edition has no NVLink. Supermicro lists "NVIDIA® NVLink™ Bridge (optional)", Gigabyte states eight H200 NVL "arranged as two 4-GPU sets, each with a 4-way NVLink bridge", and ASUS's datasheet names 2-way or 4-way bridges.

Which NVIDIA cards each maker names

the makers' product pages for each model, read 12 November 2026; "Server Edition" and "Max-Q" stand for the Blackwell cards of those names; ASUS's pages write "H200", the file names of its datasheets "H200_NVL".

Three points need care. Supermicro's GPU list gives no count per card; for the SYS-422GA-NRT its key features state eight double-width 600 W cards and, by name, eight RTX PRO 6000 Blackwell Server Edition, and the 5U SYS-522GA-NRT does not list the H200 NVL. Gigabyte ties its two eight-card sets to conditions and adds: "The system is only validated with a uniform GPU model." In ASUS's sentence the word "eight" stands next to the H200; the ESC8000A-E13X page alone says "eight dual-slot NVIDIA RTX PRO™ 6000 Blackwell Server Edition GPUs" outright. ASUS's datasheets refer to its GPU compatibility list, whose rows we could not read.

Further makers are covered in RTX PRO 6000 Server Edition compatible servers. The RTX PRO 4500 Blackwell Server Edition, a single-slot card with 32 GB and 165 W, has its own page to buy the RTX PRO 4500 Server Edition. Each maker's line is the subject of Gigabyte servers for the RTX PRO 6000 Server Edition and ASUS ESC8000 for the RTX PRO 6000 Server Edition.

Eight 600 W cards and the room temperature

"Up to eight GPUs" is a different statement at each maker.

• Supermicro's key features for the SYS-422GA-NRT read "Support up to 8 double-width 600W PCIe GPU accelerator cards at 35ºC" and "Support 8 NVIDIA RTX PRO 6000 Blackwell Server Edition+ 5 NVIDIA BlueField-3 at 35ºC".
• Gigabyte's page for the G494-SB4-AAP2 says "Supports up to 8 x dual-slot Gen5 GPUs" and lists the two NVIDIA sets under "Conditionally supports". Its notes read "The system supports 8 x NVIDIA RTX PRO™ 6000 Blackwell Server Edition GPUs at 25°C ambient." and "The system supports up to 8 x 600 W GPUs with an optional fan kit." With this "8080 fan kit for 600 W GPUs" the depth is 1,000.5 mm instead of 880 mm. The operating range of the server is 10 °C to 35 °C.
• ASUS's datasheet for the ESC8000-E12 gives eight slots for dual-slot GPUs with up to 600 W each and an operating temperature of 10 °C to 35 °C with the footnote "For operating temperatures above 30°C, please contact your local sales representative".

A room whose supply air stays between 10 °C and 25 °C lies inside all three statements. Above 25 °C, Supermicro's statement covers eight 600 W cards up to 35 °C, Gigabyte's two named sets are stated for 25 °C, and for ASUS the answer above 30 °C comes from ASUS. Measure the inlet temperature at the rack position before choosing; our guide to GPU server inlet temperature explains where.

Memory slots, drive bays and free slots

Supermicro's product page for the SYS-422GA-NRT; Gigabyte's product page for the G494-SB4-AAP2; ASUS's datasheet for the ESC8000-E12; read 12 November 2026.

NVIDIA's guidance for certified systems, which our configurations follow, asks for system memory of at least twice the GPU memory: 1,536 GB for eight 96 GB cards and about 2.3 TB for eight H200 NVL with 141 GB each. Supermicro's 6 TB and ASUS's 4 TB maximum cover both; Gigabyte states 32 slots and no maximum on the pages we read. Gigabyte's bays take SATA and SAS drives only with a storage card, and at ASUS the NVMe count depends on the SKU, up to six with the RAID option and up to four without.

Power supplies, redundancy and input voltage

Supermicro's product page for the SYS-422GA-NRT; Gigabyte's product page for the G494-SB4-AAP2; ASUS's datasheet for the ESC8000-E12, which prints this one rating; read 12 November 2026.

Supermicro and ASUS state the mode: four supplies as 3+1, at Titanium level. Gigabyte writes "Quad 3000 W 80 PLUS Titanium redundant power supplies" and names no mode. ASUS adds "(following different configuration by region)" to its power line, and its rating of 16 A times four we read as four 16 A connections. Gigabyte states that the supply "requires C19 power cord" and that "Power cords are not included with server packages."

By our arithmetic, three supplies deliver 9,600 W at Supermicro and ASUS in the upper voltage band. For Gigabyte the figure depends on a mode the maker does not state: if three of the four carry the load, they deliver 9,000 W at 220 to 240 V and 7,800 W at 200 to 220 V. Eight 600 W cards draw up to 4,800 W on their own; with two AMD EPYC 9555 processors and the rest of the server, our published estimate for an eight-card build is about 6.3 kW at the wall.

A 3+1 layout covers the loss of one supply. With two supplies on each of two feeds, the loss of a feed leaves two supplies where three are needed, a case our article on PSU redundancy in GPU servers works through. We check the rack, power and airflow before we quote; name the voltage and the 16 A outlets per feed and the configuration follows from them.

Depth, weight and the rack

Supermicro gives 178 × 437 × 737 mm (height, width, depth), ASUS 800 × 439.5 × 175 mm (depth, width, height) and Gigabyte 448 × 176 × 880 mm (width, height, depth), or 1,000.5 mm of depth with the optional fan kit. For eight RTX PRO 6000 Blackwell Server Edition cards at 600 W, the longer Gigabyte figure is the one a rack check uses. The AMD models of Gigabyte and ASUS keep these depths; Supermicro's 5U AS -5126GS-TNRT is 786.1 mm deep.

The weights are not on one basis. Supermicro prints 29.7 kg net and 45.3 kg gross for the SYS-422GA-NRT and the same two figures for its 5U models SYS-522GA-NRT and AS -5126GS-TNRT. ASUS gives 42 kg net and 44.23 kg gross with the note "CPU, DRAM & HDD not included". Gigabyte gives 66.8 kg net and 68.8 kg gross and states no basis. The three figures cannot be set against each other, so ask for the weight of the configured server. Our site survey for GPU servers lists what else to measure, and 2U or 4U for four cards covers smaller builds.

MGX models and NVIDIA certification on the makers' pages

Each maker also has a 4U model that it relates to NVIDIA's MGX design.

Supermicro's product page for the SYS-422GL-NR; Gigabyte's product page and datasheet for the XL44-SX2-AAS1 (datasheet last updated 21 July 2026); ASUS's product page and datasheet for the ESC8000A-E13X (undated); read 12 November 2026.

Gigabyte calls its model an "NVIDIA RTX PRO™ Server" and ASUS its model an "NVIDIA RTX PRO™ Server with ConnectX®-8 SuperNICs". Supermicro's page for the SYS-422GL-NR does not mention ConnectX-8.

On the makers' own pages we read, an "NVIDIA Certified" logo or list entry appears at Supermicro only: its NVIDIA-Certified Systems page lists the SYS-522GA-NRT with eight RTX PRO 6000 Blackwell Server Edition cards, the pages of the AS -5126GS-TNRT and the SYS-422GL-NR show the logo, and the page of the SYS-422GA-NRT shows none. The Gigabyte and ASUS pages we read make no statement on certification. NVIDIA's own list of NVIDIA-Certified Systems (last updated 4 October 2026), read the same day, has a table for eight PCIe GPUs that carries the Supermicro SYS-422GA-NRT, SYS-522GA-NRT and SYS-422GL-NR and the Gigabyte G494-ZB4-AAP2 with the RTX PRO 6000 Blackwell Server Edition, and the ASUS ESC8000A-E13P with the L40S. NVIDIA's RTX PRO Server page of 11 June 2026 states that "RTX PRO Servers are NVIDIA-Certified™". Our article on NVIDIA-Certified Systems explains the label.

Which difference matters for which buyer

• The cards. For eight H200 NVL, check the list of the exact model: Supermicro's SYS-522GA-NRT does not name the card, and Gigabyte states it as two sets of four at 25 °C. The RTX PRO 4500 Blackwell Server Edition is named on the four Supermicro models above and on the ASUS E12, E12P, E13 and E13P pages, and on neither G494 page; Gigabyte's RTX PRO solutions page speaks of up to eight of these cards in 4U platforms.
• The room. Between 25 °C and 35 °C of supply air the three statements differ, as shown above.
• The rack. Measure the usable depth against 737, 800, 880 or 1,000.5 mm, plus cabling.
• The feeds. Between 200 and 219 V a Supermicro supply delivers 2,900 or 3,000 W, between 200 and 220 V a Gigabyte supply 2,600 W; ASUS rates its supplies for 220 to 240 V.
• The tools. A team that already runs one maker's management software keeps one console by staying with that maker.
• The processors. Of the three Intel models, Supermicro's takes Xeon 6900 processors of up to 500 W and the other two the 6700/6500 series of up to 350 W. All three makers have AMD EPYC models with up to 500 W, at Gigabyte and ASUS with conditions stated on the page.

How the servers are sold, and what we add

Gigabyte lists the G494 under a "Barebone package" order number and names the box contents: the chassis, two CPU fansinks, eight 16-pin GPU power cables of 150 mm and a rail kit. ASUS states the weights of the ESC8000-E12 without processors, memory and drives. Supermicro lists a pre-configured Gold Series version of the SYS-422GA-NRT. Processors, memory, drives and cards are part of the build, as barebone vs complete GPU server explains.

Every server we supply is built to order. We size processors, memory, storage, power and cooling to your models and users, and every server is assembled and tested before delivery and comes with manufacturer warranty. Our guides on what to specify when buying an AI server and on which LLMs fit eight RTX PRO 6000 Server Edition cards help with the request; then write to us with the workload and the room.

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