NVIDIA GeForce RTX 4090 vs NVIDIA H800 PCIe 80 GB

VS

NVIDIA GeForce RTX 4090

NVIDIA H800 PCIe 80 GB

AI GPU We compared a Desktop platform GPU: 24GB VRAM GeForce RTX 4090 and a GPU: 80GB VRAM H800 PCIe 80 GB to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce RTX 4090 's Advantages

Boost Clock has increased by 44% (2520MHz vs 1755MHz)

1792 additional rendering cores

NVIDIA H800 PCIe 80 GB 's Advantages

Released 6 months late

More VRAM (80GB vs 24GB)

Larger VRAM bandwidth (2039GB/s vs 1.01TB/s)

Lower TDP (350W vs 450W)

Score

Benchmark

FP32 (float)

GeForce RTX 4090 +61%

82.58 TFLOPS

H800 PCIe 80 GB

51.22 TFLOPS

GeForce RTX 4090

VS

H800 PCIe 80 GB

Graphics Card

Sep 2022

Release Date

Mar 2023

GeForce 40

Generation

Tesla Hopper

Desktop

Type

AI GPU

PCIe 4.0 x16

Bus Interface

PCIe 5.0 x16

Clock Speeds

2235 MHz

Base Clock

1095 MHz

2520 MHz

Boost Clock

1755 MHz

1313 MHz

Memory Clock

1593 MHz

Memory

24GB

Memory Size

80GB

GDDR6X

Memory Type

HBM2e

384bit

Memory Bus

5120bit

1.01TB/s

Bandwidth

2039GB/s

Render Config

-

128

SM Count

114

16384

Shading Units

14592

512

TMUs

456

176

ROPs

24

512

Tensor Cores

456

128

RT Cores

-

128 KB (per SM)

L1 Cache

256 KB (per SM)

72 MB

L2 Cache

50 MB

-

Theoretical Performance

443.5 GPixel/s

Pixel Rate

42.12 GPixel/s

1290 GTexel/s

Texture Rate

800.3 GTexel/s

82.58 TFLOPS

FP16 (half)

204.9 TFLOPS

82.58 TFLOPS

FP32 (float)

51.22 TFLOPS

1290 GFLOPS

FP64 (double)

25.61 TFLOPS

Board Design

450W

TDP

350W

850 W

Suggested PSU

750 W

1x HDMI 2.13x DisplayPort 1.4a

Outputs

No outputs

1x 16-pin

Power Connectors

1x 16-pin

Graphics Processor

AD102

GPU Name

GH100

AD102-300-A1

GPU Variant

-

Ada Lovelace

Architecture

Hopper

TSMC

Foundry

TSMC

5 nm

Process Size

4 nm

76.3 billion

Transistors

80 billion

609 mm²

Die Size

814 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

N/A

4.6

OpenGL

N/A

3.0

OpenCL

3.0

1.3

Vulkan

N/A

8.9

CUDA

9.0

6.8

Shader Model

N/A

Related GPU Comparisons

1

NVIDIA GeForce RTX 4090 vs AMD Radeon R5 220 OEM

2

NVIDIA GeForce RTX 4090 vs NVIDIA GeForce2 Ultra

3

NVIDIA GeForce RTX 4090 vs AMD Radeon HD 6570

4

NVIDIA GeForce RTX 4090 vs AMD Radeon R7 265

5

NVIDIA GeForce RTX 4090 vs AMD Radeon HD 7350 OEM

6

NVIDIA GeForce RTX 4090 vs NVIDIA GeForce 9500 GS

7

NVIDIA GeForce RTX 4090 vs ATI FireGL V8650

8

NVIDIA GeForce RTX 4090 vs ATI Radeon HD 5670 640SP Edition

9

NVIDIA GeForce RTX 4090 vs AMD Radeon HD 6530

10

NVIDIA GeForce RTX 4090 vs NVIDIA P104 101

Related News

1

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

2

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

3

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

4

CXMT Reportedly Achieves 80% Yield in DDR5 Production

5

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

6

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

7

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps

8

Intel Reports High Return Rates for Devices Featuring Snapdragon X Series; Qualcomm Counters with 'Industry Standard' Claim

9

Intel Confirms Panther Lake Adopts 18A Process, ES0 Samples Already Sent to Customers

10

Complete Lineup of Core Ultra 200HX/H/U and Core 200H/U Revealed: 31 Models to Dazzle the Eyes