GPU Comparison

A

AMD

RADEON

AMD Radeon R5 M255

CORE STATE Topaz

VRAM 2 GB

CLOCK SPEED 940 MHz

TDP —

BUS WIDTH 128 bit

ARCHITECTURE GCN 3.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

VS

A

AMD

RADEON

Radeon RX 6650 XT

CORE STATE Navi 23

VRAM 8 GB

CLOCK SPEED 2635 MHz

TDP 176 W

BUS WIDTH 128 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_opencl

4,680

87,548

3dmark_3dmark_steel_nomad_dx12

N/A

1,859

geekbench_metal

N/A

109,922

geekbench_vulkan

N/A

93,769

passmark_directx_10

N/A

109

passmark_directx_11

N/A

169

passmark_directx_12

N/A

62

passmark_directx_9

N/A

215

passmark_g2d

N/A

918

passmark_g3d

N/A

17,166

passmark_gpu_compute

N/A

7,532

DETAILED SPECIFICATIONS

SPECIFICATION

R5 M255

RX 6650 XT

Core Specs

Shading Units

384

2,048 +433.3%

Shaders

384

2,048 +433.3%

TMUs

24

128 +433.3%

ROPs

8

64 +700.0%

Compute Units

6

32 +433.3%

Clocks

Base Clock

925 MHz

2055 MHz

Boost Clock

940 MHz

2635 MHz

Game Clock

—

2410 MHz

Memory Clock

1000 MHz 2 Gbps effective

2190 MHz 17.5 Gbps effective

Memory

Memory Size

2 GB

8 GB

VRAM (MB)

2,048

8,192 +300.0%

Memory Type

DDR3

GDDR6

Memory Bus

128 bit

128 bit

Bandwidth

32.00 GB/s

280.3 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

256 KB

2 MB

L3 Cache

—

32 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

7.520 GPixel/s

168.6 GPixel/s

Texture Rate

22.56 GTexel/s

337.3 GTexel/s

FP32 (TFLOPS)

721.9 GFLOPS

10.79 TFLOPS

FP64 (TFLOPS)

45.12 GFLOPS (1:16)

674.6 GFLOPS (1:16)

FP16 (TFLOPS)

721.9 GFLOPS (1:1)

21.59 TFLOPS (2:1)

AI/RT

RT Cores

—

32

Power

TDP

—

176 W

TDP (W)

—

176

Suggested PSU

—

450 W

Power Connectors

—

1x 8-pin

Architecture

Architecture

GCN 3.0

RDNA 2.0

GPU Name

Topaz

Navi 23

Generation

Gem System (R5 M200)

Navi II (RX 6000)

Process Size

28 nm

7 nm

Transistors

1,550 million

11,060 million

Die Size

125 mm²

237 mm²

Foundry

TSMC

TSMC

Density

12.4M / mm²

46.7M / mm²

API Support

DirectX

12 (12_0)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1

2.1

Shader Model

6.5

6.8

Physical

Slot Width

—

Dual-slot

Outputs

—

1x HDMI 2.13x DisplayPort 1.4a

Bus Interface

PCIe 3.0 x8

PCIe 4.0 x8

Other

Launch Price

—

399 USD

Production

End-of-life

End-of-life

Predecessor

Solar System

Navi

Successor

Polaris Mobile

Navi III

View Radeon R5 M255 Details View Radeon RX 6650 XT Details