GPU Comparison

A

AMD

RADEON

AMD Radeon R6 M255DX

CORE STATE Jet

VRAM System Shared

CLOCK SPEED 855 MHz

TDP —

BUS WIDTH System Shared

ARCHITECTURE GCN 1.0

nm

PROCESS 28 nm

LAUNCH DATE 2014

VS

A

AMD

RADEON

Radeon RX 7900 XT

CORE STATE Navi 31

VRAM 20 GB

CLOCK SPEED 2394 MHz

TDP 300 W

BUS WIDTH 320 bit

ARCHITECTURE RDNA 3.0

nm

PROCESS 5 nm

LAUNCH DATE 2022

PERFORMANCE BENCHMARKS

geekbench_vulkan

4,867

160,119

3dmark_3dmark_steel_nomad_dx12

N/A

5,623

geekbench_opencl

N/A

169,834

passmark_directx_10

N/A

158

passmark_directx_11

N/A

340

passmark_directx_12

N/A

110

passmark_directx_9

N/A

322

passmark_g2d

N/A

1,232

passmark_g3d

N/A

29,009

passmark_gpu_compute

N/A

16,828

DETAILED SPECIFICATIONS

SPECIFICATION

R6 M255DX

RX 7900 XT

Core Specs

Shading Units

320

5,376 +1580.0%

Shaders

320

5,376 +1580.0%

TMUs

20

336 +1580.0%

ROPs

8

192 +2300.0%

Compute Units

5

84 +1580.0%

Clocks

Base Clock

780 MHz

1387 MHz

Boost Clock

855 MHz

2394 MHz

Game Clock

—

2025 MHz

Shader Clock

—

2025 MHz

Memory Clock

System Shared

2500 MHz 20 Gbps effective

Memory

Memory Size

System Shared

20 GB

VRAM (MB)

—

20,480

Memory Type

System Shared

GDDR6

Memory Bus

System Shared

320 bit

Bandwidth

System Dependent

800.0 GB/s

Cache

L1 Cache

16 KB (per CU)

256 KB per Array

L2 Cache

128 KB

6 MB

L3 Cache

—

80 MB

L0 Cache

—

64 KB per WGP

Performance

Pixel Rate

6.840 GPixel/s

459.6 GPixel/s

Texture Rate

17.10 GTexel/s

804.4 GTexel/s

FP32 (TFLOPS)

547.2 GFLOPS

51.48 TFLOPS

FP64 (TFLOPS)

34.20 GFLOPS (1:16)

1.609 TFLOPS (1:32)

FP16 (TFLOPS)

—

103.0 TFLOPS (2:1)

AI/RT

RT Cores

—

84

Matrix Cores

—

168

Power

TDP

—

300 W

TDP (W)

—

300

Suggested PSU

—

700 W

Power Connectors

—

2x 8-pin

Architecture

Architecture

GCN 1.0

RDNA 3.0

GPU Name

Jet

Navi 31

Codename

—

Plum Bonito

Generation

Gem System Hybrid (Rx M200)

Navi III (RX 7000)

Process Size

28 nm

5 nm

Transistors

690 million

57,700 million

Die Size

56 mm²

529 mm²

Foundry

TSMC

TSMC

Density

12.3M / mm²

109.1M / mm²

AMD MCM

GCD Transistors

—

45,400 million

GCD Die Size

—

304.35 mm²

MCD Transistors

—

2,050 million x6

API Support

DirectX

12 (11_1)

12 Ultimate (12_2)

OpenGL

4.6

4.6

Vulkan

1.2.170

1.4

OpenCL

2.1 (1.2)

2.2

Shader Model

6.5 (5.1)

6.8

Physical

Slot Width

IGP

Dual-slot

Length

—

276 mm 10.9 inches

Height

—

110 mm 4.3 inches

Outputs

Portable Device Dependent

1x HDMI 2.1a2x DisplayPort 2.11x USB Type-C

Bus Interface

IGP

PCIe 4.0 x16

Other

Launch Price

—

899 USD

Production

End-of-life

End-of-life

Predecessor

—

Navi II

Successor

—

Navi IV

View Radeon R6 M255DX Details View Radeon RX 7900 XT Details