AMD Radeon 550X 640SP vs AMD Radeon RX 6750 GRE

VS

AMD Radeon 550X 640SP

AMD Radeon RX 6750 GRE

We compared two Desktop platform GPUs: 4GB VRAM Radeon 550X 640SP and 12GB VRAM Radeon RX 6750 GRE 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 250W)

AMD Radeon RX 6750 GRE 's Advantages

Released 5 years and 6 months late

Boost Clock has increased by 141% (2581MHz vs 1071MHz)

More VRAM (12GB vs 4GB)

Larger VRAM bandwidth (432.0GB/s vs 48.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon 550X 640SP

1.371 TFLOPS

Radeon RX 6750 GRE +863%

13.21 TFLOPS

Radeon 550X 640SP

VS

Radeon RX 6750 GRE

Graphics Card

Apr 2018

Release Date

Oct 2023

Polaris

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x16

Clock Speeds

1019 MHz

Base Clock

2321 MHz

1071 MHz

Boost Clock

2581 MHz

1500 MHz

Memory Clock

2250 MHz

Memory

4GB

Memory Size

12GB

GDDR5

Memory Type

GDDR6

64bit

Memory Bus

192bit

48.00GB/s

Bandwidth

432.0GB/s

Render Config

10

Compute Units

40

-

640

Shading Units

2560

40

TMUs

160

16

ROPs

64

-

RT Cores

40

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

3 MB

-

L3 Cache

96 MB

Theoretical Performance

17.14 GPixel/s

Pixel Rate

165.2 GPixel/s

42.84 GTexel/s

Texture Rate

413.0 GTexel/s

1371 GFLOPS

FP16 (half)

26.43 TFLOPS

1371 GFLOPS

FP32 (float)

13.21 TFLOPS

85.68 GFLOPS

FP64 (double)

825.9 GFLOPS

Board Design

50W

TDP

250W

250 W

Suggested PSU

600 W

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

Outputs

1x HDMI 2.1 3x DisplayPort 1.4a

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Lexa

GPU Name

Navi 22

Lexa PRO (215-0904018)

GPU Variant

Navi 22 KXT

GCN 4.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

2.2 billion

Transistors

17.2 billion

103 mm²

Die Size

335 mm²

Graphics Features

12 (12_0)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.7

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