GPU Comparison

A

AMD

RADEON

AMD Radeon RX 550

CORE STATE Lexa

VRAM 2 GB

CLOCK SPEED 1183 MHz

TDP 50 W

BUS WIDTH 128 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2017

VS

A

AMD

RADEON

Radeon RX 6600 XT

CORE STATE Navi 23

VRAM 8 GB

CLOCK SPEED 2589 MHz

TDP 160 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2021

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

127

1,804

geekbench_metal

19,937

108,608

geekbench_opencl

4,575

82,736

geekbench_vulkan

8,657

89,263

passmark_directx_10

N/A

109

passmark_directx_11

N/A

163

passmark_directx_12

N/A

61

passmark_directx_9

N/A

194

passmark_g2d

N/A

912

passmark_g3d

N/A

16,461

passmark_gpu_compute

N/A

7,520

DETAILED SPECIFICATIONS

SPECIFICATION

RX 550

RX 6600 XT

Core Specs

Shading Units

512

2,048 +300.0%

Shaders

512

2,048 +300.0%

TMUs

32

128 +300.0%

ROPs

16

64 +300.0%

Compute Units

8

32 +300.0%

Clocks

Base Clock

1100 MHz

1968 MHz

Boost Clock

1183 MHz

2589 MHz

Game Clock

—

2359 MHz

Memory Clock

1750 MHz 7 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

128 bit

Bandwidth

112.0 GB/s

256.0 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

512 KB

2 MB

L3 Cache

—

32 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

18.93 GPixel/s

165.7 GPixel/s

Texture Rate

37.86 GTexel/s

331.4 GTexel/s

FP32 (TFLOPS)

1,211.4 GFLOPS

10.60 TFLOPS

FP64 (TFLOPS)

75.71 GFLOPS (1:16)

662.8 GFLOPS (1:16)

FP16 (TFLOPS)

1,211.4 GFLOPS (1:1)

21.21 TFLOPS (2:1)

AI/RT

RT Cores

—

32

Power

TDP

50 W

160 W

TDP (W)

50

160 +220.0%

Suggested PSU

250 W

450 W

Power Connectors

None

1x 8-pin

Architecture

Architecture

GCN 4.0

RDNA 2.0

GPU Name

Lexa

Navi 23

Generation

Polaris (RX 500)

Navi II (RX 6000)

Process Size

14 nm

7 nm

Transistors

2,200 million

11,060 million

Die Size

103 mm²

237 mm²

Foundry

GlobalFoundries

TSMC

Density

21.4M / mm²

46.7M / mm²

API Support

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.3

1.4

OpenCL

2.1

2.1

Shader Model

6.7

6.8

Physical

Slot Width

Dual-slot

Dual-slot

Length

145 mm 5.7 inches

190 mm 7.5 inches

Height

—

110 mm 4.3 inches

Outputs

1x DVI1x HDMI 2.0b1x DisplayPort 1.4a

1x HDMI 2.13x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x8

PCIe 4.0 x8

Other

Launch Price

79 USD

379 USD

Production

End-of-life

End-of-life

Predecessor

Arctic Islands

Navi

Successor

Vega

Navi III

View Radeon RX 550 Details View Radeon RX 6600 XT Details