GPU Comparison

A

AMD

RADEON

AMD Radeon RX 550X

CORE STATE Lexa

VRAM 4 GB

CLOCK SPEED 1183 MHz

TDP 50 W

BUS WIDTH 128 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2018

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

geekbench_opencl

9,025

82,736

geekbench_vulkan

11,165

89,263

3dmark_3dmark_steel_nomad_dx12

N/A

1,804

geekbench_metal

N/A

108,608

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 550X

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

1500 MHz 6 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

4 GB

8 GB

VRAM (MB)

4,096

8,192 +100.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

128 bit

Bandwidth

96.00 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 500X)

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

—

379 USD

Production

End-of-life

End-of-life

Predecessor

Polaris

Navi

Successor

Vega

Navi III

View Radeon RX 550X Details View Radeon RX 6600 XT Details