AMD Radeon RX 640 OEM vs ASRock Arc A770 Challenger OC 16 GB

Comparison of AMD Radeon RX 640 OEM with 4 GB GDDR5 and 640 cores vs ASRock Arc A770 Challenger OC 16 GB with 16 GB GDDR6 and 4,096 cores.

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Performance Rating

ASRock Arc A770 Challenger OC 16 GB outperforms AMD Radeon RX 640 OEM by 630.62% in the overall GPU ARK performance rating

A100 A100
H200 H200
MI325X MI325X

AMD Radeon RX 640 OEM

1.6

AMD Radeon RX 640 OEM

1.6
RX 7900 XTX RX 7900 XTX
MI250 MI250
Instinct MI300X Instinct MI300X

ASRock Arc A770 Challenger OC 16 GB

11.7

ASRock Arc A770 Challenger OC 16 GB

11.7

Contents:

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

Memory

Memory Size

4 GB
🔥 +300% 16 ГБ

Memory Type

GDDR5 GDDR6

Memory Bandwidth

96.00 GB/s 559.9 GB/s

Memory Bus Width

128 бит 256 бит

ML Performance

FP16 (Half Precision)

1.658 TFLOPS
🔥 +2,272% 39.32 TFLOPS

BF16 (Brain Float)

No No

TF32 (TensorFloat)

No No

Compute Power

FP32 (Single Precision)

1.658 TFLOPS
🔥 +1,086% 19.66 TFLOPS

FP64 (Double Precision)

0.1036 TFLOPS
🔥 +2,273% 2.458 TFLOPS

CUDA Cores

640
🔥 +540% 4,096

RT Cores

No
🔥 32

Architecture & Compatibility

GPU Architecture

GCN 4.0 Xe-HPG

SM (Streaming Multiprocessor)

No No

PCIe Version

PCIe 3.0 x8 PCIe 4.0 x16

ML Software Support

CUDA Version

No No

Clocks & Performance

Base Clock

No
🔥 2,150

Boost Clock

No
🔥 2,400

Memory Clock

1,500
🔥 +46% 2,187

Power Consumption

Recommended PSU

🔥 -55% 250 W
550 W

Power Connector

None 2x 8-pin

TDP/TGP

🔥 -78% 50 W
225 W

Rendering

Texture Units (TMU)

40
🔥 +540% 256

ROP

No
🔥 32

L2 Cache

🔥 +3,100% 512 KB
16 MB

Additional

Slots

Single-slot Dual-slot

Release Date

April 9, 2020 Oct. 12, 2022

Display Outputs

1x DisplayPort 1.4a
2x mini-DisplayPort 1.4a
1x HDMI 2.1
3x DisplayPort 2.0

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