H800 SXM5 vs Radeon RX 7900 XTX

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Primary details

GPU architecture, market segment, value for money and other general parameters compared.

Place in the ranking8not rated
Place by popularity70not in top-100
Cost-effectiveness evaluation34.71no data
Power efficiency15.57no data
ArchitectureRDNA 3.0 (2022−2024)Hopper (2022−2023)
GPU code nameNavi 31GH100
Market segmentDesktopWorkstation
Release date3 November 2022 (2 years ago)21 March 2023 (1 year ago)
Launch price (MSRP)$999 no data

Cost-effectiveness evaluation

Performance to price ratio. The higher, the better.

no data

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores614416896
Core clock speed1929 MHz1095 MHz
Boost clock speed2498 MHz1755 MHz
Number of transistors57,700 million80,000 million
Manufacturing process technology5 nm4 nm
Power consumption (TDP)355 Watt700 Watt
Texture fill rate959.2926.6
Floating-point processing power61.39 TFLOPS59.3 TFLOPS
ROPs19224
TMUs384528
Tensor Coresno data528
Ray Tracing Cores96no data

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

InterfacePCIe 4.0 x16PCIe 5.0 x16
Length287 mmno data
Width2-slotSXM Module
Supplementary power connectors2x 8-pin8-pin EPS

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory typeGDDR6HBM3
Maximum RAM amount24 GB80 GB
Memory bus width384 Bit5120 Bit
Memory clock speed2500 MHz1313 MHz
Memory bandwidth960.0 GB/s1,681 GB/s
Shared memory--

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors1x HDMI 2.1a, 2x DisplayPort 2.1, 1x USB Type-CNo outputs
HDMI+-

API compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX12 Ultimate (12_2)N/A
Shader Model6.7N/A
OpenGL4.6N/A
OpenCL2.23.0
Vulkan1.3N/A
CUDA-9.0

Pros & cons summary


Recency 3 November 2022 21 March 2023
Maximum RAM amount 24 GB 80 GB
Chip lithography 5 nm 4 nm
Power consumption (TDP) 355 Watt 700 Watt

RX 7900 XTX has 97.2% lower power consumption.

H800 SXM5, on the other hand, has an age advantage of 4 months, a 233.3% higher maximum VRAM amount, and a 25% more advanced lithography process.

We couldn't decide between Radeon RX 7900 XTX and H800 SXM5. We've got no test results to judge.

Be aware that Radeon RX 7900 XTX is a desktop card while H800 SXM5 is a workstation one.


Should you still have questions concerning choice between the reviewed GPUs, ask them in Comments section, and we shall answer.

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AMD Radeon RX 7900 XTX
Radeon RX 7900 XTX
NVIDIA H800 SXM5
H800 SXM5

Comparisons with similar GPUs

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Community ratings

Here you can see the user ratings of the compared graphics cards, as well as rate them yourself.


4.1 3674 votes

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4.3 6 votes

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Questions & comments

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