AMD Radeon RX 550X 640SP vs NVIDIA GeForce GT 620

VS

AMD Radeon RX 550X 640SP

NVIDIA GeForce GT 620

We compared two Desktop platform GPUs: 2GB VRAM Radeon RX 550X 640SP and 1024MB VRAM GeForce GT 620 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 550X 640SP 's Advantages

Released 5 years and 11 months late

Boost Clock1071MHz

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (96.00GB/s vs 14.40GB/s)

544 additional rendering cores

NVIDIA GeForce GT 620 's Advantages

Lower TDP (49W vs 60W)

Score

Benchmark

FP32 (float)

Radeon RX 550X 640SP +409%

1.371 TFLOPS

GeForce GT 620

0.269 TFLOPS

Radeon RX 550X 640SP

VS

GeForce GT 620

Graphics Card

Apr 2018

Release Date

May 2012

Polaris

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1019 MHz

Base Clock

-

1071 MHz

Boost Clock

-

1500 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

-

SM Count

2

640

Shading Units

96

40

TMUs

16

ROPs

4

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

1024 KB

L2 Cache

128 KB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

2.800 GPixel/s

42.84 GTexel/s

Texture Rate

11.20 GTexel/s

1371 GFLOPS

FP16 (half)

-

1371 GFLOPS

FP32 (float)

268.8 GFLOPS

85.68 GFLOPS

FP64 (double)

22.40 GFLOPS

Board Design

60W

TDP

49W

250 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

Baffin

GPU Name

GF108

Baffin LE

GPU Variant

GF108-100-KB-A1

GCN 4.0

Architecture

Fermi

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

40 nm

3 billion

Transistors

0.585 billion

123 mm²

Die Size

116 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

6.4

Shader Model

5.1

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