GPU Comparison

A

AMD

RADEON

AMD Radeon Pro 455

CORE STATE Baffin

VRAM 2 GB

CLOCK SPEED —

TDP 35 W

BUS WIDTH 128 bit

ARCHITECTURE GCN 4.0

nm

PROCESS 14 nm

LAUNCH DATE 2016

VS

A

AMD

RADEON

Radeon RX 6800 XT

CORE STATE Navi 21

VRAM 16 GB

CLOCK SPEED 2250 MHz

TDP 300 W

BUS WIDTH 256 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 7 nm

LAUNCH DATE 2020

PERFORMANCE BENCHMARKS

geekbench_metal

15,829

199,366

geekbench_opencl

11,003

154,506

3dmark_3dmark_steel_nomad_dx12

N/A

3,689

geekbench_vulkan

N/A

152,200

passmark_directx_10

N/A

155

passmark_directx_11

N/A

264

passmark_directx_12

N/A

100

passmark_directx_9

N/A

265

passmark_g2d

N/A

1,030

passmark_g3d

N/A

24,980

passmark_gpu_compute

N/A

13,245

DETAILED SPECIFICATIONS

SPECIFICATION

Pro 455

RX 6800 XT

Core Specs

Shading Units

768

4,608 +500.0%

Shaders

768

4,608 +500.0%

TMUs

48

288 +500.0%

ROPs

16

128 +700.0%

Compute Units

12

72 +500.0%

Clocks

Base Clock

—

1825 MHz

Boost Clock

—

2250 MHz

GPU Clock

855 MHz

—

Game Clock

—

2015 MHz

Memory Clock

1270 MHz 5.1 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

2 GB

16 GB

VRAM (MB)

2,048

16,384 +700.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

256 bit

Bandwidth

81.28 GB/s

512.0 GB/s

Cache

L1 Cache

16 KB (per CU)

128 KB per Array

L2 Cache

1024 KB

4 MB

L3 Cache

—

128 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

13.68 GPixel/s

288.0 GPixel/s

Texture Rate

41.04 GTexel/s

648.0 GTexel/s

FP32 (TFLOPS)

1,313.3 GFLOPS

20.74 TFLOPS

FP64 (TFLOPS)

82.08 GFLOPS (1:16)

1,296.0 GFLOPS (1:16)

FP16 (TFLOPS)

1,313.3 GFLOPS (1:1)

41.47 TFLOPS (2:1)

AI/RT

RT Cores

—

72

Power

TDP

35 W

300 W

TDP (W)

35

300 +757.1%

Suggested PSU

—

700 W

Power Connectors

None

2x 8-pin

Architecture

Architecture

GCN 4.0

RDNA 2.0

GPU Name

Baffin

Navi 21

Generation

Radeon Pro Mac (400 Series)

Navi II (RX 6000)

Process Size

14 nm

7 nm

Transistors

3,000 million

26,800 million

Die Size

123 mm²

520 mm²

Foundry

GlobalFoundries

TSMC

Density

24.4M / mm²

51.5M / 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

MXM Module

Dual-slot

Length

—

267 mm 10.5 inches

Height

—

120 mm 4.7 inches

Outputs

Portable Device Dependent

1x HDMI 2.12x DisplayPort 1.4a1x USB Type-C

Bus Interface

PCIe 3.0 x8

PCIe 4.0 x16

Other

Launch Price

—

649 USD

Production

End-of-life

End-of-life

Predecessor

—

Navi

Successor

—

Navi III

View Radeon Pro 455 Details View Radeon RX 6800 XT Details