Gainward RTX 5080 Phantom vs NVIDIA B300

Comparison Gainward RTX 5080 Phantom with 16 GB GDDR7 and 10,752 cores vs NVIDIA B300 with 144 GB HBM3e and 18,944 cores.

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Performance Rating

NVIDIA B300 outperforms Gainward RTX 5080 Phantom by 209.64% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

Gainward RTX 5080 Phantom

23.2

Gainward RTX 5080 Phantom

23.2
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

NVIDIA B300

71.9

NVIDIA B300

71.9

Expert Comparison

Gainward RTX 5080 Phantom лучше по параметрам пропускной способности памяти (960.0 GB/s против 4.10 TB/s), числу ядер (10752 против 18944) и общему показателю производительности (GPI 23.2 против 71.9). Однако B300 обладает большей емкостью памяти (144 ГБ против 16 ГБ) и более высокой частотой boost (2032 МГц против 2617 МГц), что делает его предпочтительным для обработки больших объемов данных и высоконагруженных вычислений.

Contents:

Memory ML Performance Compute Power Architecture & Compatibility ML Software Support Clocks & Performance Power Consumption Rendering Additional

Memory

Memory Size

16 GB
🔥 +800% 144 ГБ ×2 (288 ГБ)

Memory Type

GDDR7 HBM3e

Memory Bandwidth

960.0 GB/s
🔥 4.10 TB/s ×2 (8.2 TB/s)

Memory Bus Width

256 бит 4,096 бит ×2 (8192 бит)

ML Performance

FP16 (Half Precision)

🔥 +4,469% 56.28 TFLOPS
1.2318 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

56.28 TFLOPS
🔥 +37% 76.99 TFLOPS

FP64 (Double Precision)

0.8793 TFLOPS
🔥 +37% 1.2029 TFLOPS

CUDA Cores

10,752
🔥 +76% 18,944 ×2 (37888)

RT Cores

🔥 84
No

Architecture & Compatibility

GPU Architecture

Blackwell 2.0 Blackwell Ultra

SM (Streaming Multiprocessor)

84
🔥 +76% 148

PCIe Version

PCIe 5.0 x16 PCIe 5.0 x16

ML Software Support

CUDA Version

🔥 12.0
10.3

CUDA Toolkit (first supported)

v12 v12

CUDA Toolkit status

Supported Supported

Clocks & Performance

Base Clock

🔥 +38% 2,295
1,665

Boost Clock

🔥 +29% 2,617
2,032

Memory Clock

1,875
🔥 +7% 2,000

Power Consumption

Recommended PSU

🔥 -58% 750 W
1800 W

Power Connector

1x 16-pin No

TDP/TGP

🔥 -74% 360 W
1400 W

Rendering

Texture Units (TMU)

336
🔥 +76% 592 ×2 (1184)

ROP

🔥 84
No

L2 Cache

🔥 +28% 64 MB
50 MB

Additional

Slots

Triple-slot
🔥 SXM Module

Release Date

Jan. 30, 2025 Sept. 11, 2025

Display Outputs

1x HDMI 2.1b
3x DisplayPort 2.1b
No outputs

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