AMD Radeon 550X 640SP vs NVIDIA RTX A4000H

VS

AMD Radeon 550X 640SP

NVIDIA RTX A4000H

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 16GB VRAM RTX A4000H to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon 550X 640SP 's Advantages

Lower TDP (50W vs 140W)

NVIDIA RTX A4000H 's Advantages

Released 3 years late

Boost Clock has increased by 46% (1560MHz vs 1071MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (448.0GB/s vs 48.00GB/s)

5504 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

RTX A4000H +1298%

19.17 TFLOPS

Radeon 550X 640SP

VS

RTX A4000H

Graphics Card

Apr 2018

Release Date

Apr 2021

Polaris

Generation

Quadro Ampere

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1019 MHz

Base Clock

735 MHz

1071 MHz

Boost Clock

1560 MHz

1500 MHz

Memory Clock

1750 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

448.0GB/s

Render Config

10

Compute Units

-

SM Count

48

640

Shading Units

6144

40

TMUs

192

16

ROPs

96

-

Tensor Cores

192

-

RT Cores

48

16 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

4 MB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

149.8 GPixel/s

42.84 GTexel/s

Texture Rate

299.5 GTexel/s

1371 GFLOPS

FP16 (half)

19.17 TFLOPS

1371 GFLOPS

FP32 (float)

19.17 TFLOPS

85.68 GFLOPS

FP64 (double)

299.5 GFLOPS

Board Design

50W

TDP

140W

250 W

Suggested PSU

300 W

1x DVI 1x HDMI 2.0b 1x DisplayPort 1.4a

Outputs

4x DisplayPort 1.4a

None

Power Connectors

1x 6-pin

Graphics Processor

Lexa

GPU Name

GA104

Lexa PRO (215-0904018)

GPU Variant

GA104-???-A1

GCN 4.0

Architecture

Ampere

GlobalFoundries

Foundry

Samsung

14 nm

Process Size

8 nm

2.2 billion

Transistors

17.4 billion

103 mm²

Die Size

392 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

8.6

6.4

Shader Model

6.7

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