AMD Radeon Pro V620 vs ATI Radeon HD 3870 X2

VS

AMD Radeon Pro V620

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 32GB VRAM Radeon Pro V620 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro V620 's Advantages

Released 13 years and 10 months late

Boost Clock2200MHz

More VRAM (32GB vs 512GB)

Larger VRAM bandwidth (512.0GB/s vs 57.66GB/s)

4288 additional rendering cores

ATI Radeon HD 3870 X2 's Advantages

Lower TDP (165W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Pro V620 +3740%

20.28 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

Radeon Pro V620

VS

Radeon HD 3870 X2

Graphics Card

Nov 2021

Release Date

Jan 2008

Radeon Pro

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1825 MHz

Base Clock

-

2200 MHz

Boost Clock

-

2000 MHz

Memory Clock

901 MHz

Memory

32GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

256bit

Memory Bus

256bit

512.0GB/s

Bandwidth

57.66GB/s

Render Config

72

Compute Units

4

-

4608

Shading Units

320

288

TMUs

16

128

ROPs

16

-

72

RT Cores

-

128 KB per Array

L1 Cache

-

4 MB

L2 Cache

256 KB

128 MB

L3 Cache

-

Theoretical Performance

281.6 GPixel/s

Pixel Rate

13.20 GPixel/s

633.6 GTexel/s

Texture Rate

13.20 GTexel/s

40.55 TFLOPS

FP16 (half)

-

20.28 TFLOPS

FP32 (float)

528.0 GFLOPS

1267 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

300W

TDP

165W

700 W

Suggested PSU

450 W

No outputs

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Navi 21

GPU Name

R680

Navi 21 XT (215-121000177)

GPU Variant

R680 XT (215-0708017)

RDNA 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

7 nm

Process Size

55 nm

26.8 billion

Transistors

0.666 billion

520 mm²

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

2.1

OpenCL

N/A

1.3

Vulkan

N/A

-

6.5

Shader Model

4.1

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