AMD Radeon 550X 640SP vs NVIDIA GeForce RTX 5080

VS

AMD Radeon 550X 640SP

NVIDIA GeForce RTX 5080

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 16GB VRAM GeForce RTX 5080 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 350W)

NVIDIA GeForce RTX 5080 's Advantages

Released 6 years and 9 months late

Boost Clock has increased by 135% (2520MHz vs 1071MHz)

More VRAM (16GB vs 4GB)

Larger VRAM bandwidth (973.8GB/s vs 48.00GB/s)

10112 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

GeForce RTX 5080 +3852%

54.19 TFLOPS

Radeon 550X 640SP

VS

GeForce RTX 5080

Graphics Card

Apr 2018

Release Date

Jan 2025

Polaris

Generation

GeForce 50

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 5.0 x16

Clock Speeds

1019 MHz

Base Clock

2235 MHz

1071 MHz

Boost Clock

2520 MHz

1500 MHz

Memory Clock

2400 MHz

Memory

4GB

Memory Size

16GB

GDDR5

Memory Type

GDDR7

64bit

Memory Bus

256bit

48.00GB/s

Bandwidth

973.8GB/s

Render Config

10

Compute Units

-

SM Count

84

640

Shading Units

10752

40

TMUs

336

16

ROPs

128

-

Tensor Cores

336

-

RT Cores

84

16 KB (per CU)

L1 Cache

128 KB (per SM)

256 KB

L2 Cache

64 MB

-

Theoretical Performance

17.14 GPixel/s

Pixel Rate

322.6 GPixel/s

42.84 GTexel/s

Texture Rate

846.7 GTexel/s

1371 GFLOPS

FP16 (half)

54.19 TFLOPS

1371 GFLOPS

FP32 (float)

54.19 TFLOPS

85.68 GFLOPS

FP64 (double)

846.7 GFLOPS

Board Design

50W

TDP

350W

250 W

Suggested PSU

750 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 2.1a

None

Power Connectors

1x 16-pin

Graphics Processor

Lexa

GPU Name

GB203

Lexa PRO (215-0904018)

GPU Variant

GB203-400-A1

GCN 4.0

Architecture

Blackwell 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

0

2.2 billion

Transistors

Unknown

103 mm²

Die Size

377 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

10.1

6.4

Shader Model

6.8

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