GPU Comparison

A

AMD

RADEON

AMD 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

VS

A

AMD

RADEON

Radeon RX Vega 64

CORE STATE Vega 10

VRAM 8 GB

CLOCK SPEED 1546 MHz

TDP 295 W

BUS WIDTH 2048 bit

ARCHITECTURE GCN 5.0

nm

PROCESS 14 nm

LAUNCH DATE 2017

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

3,689

1,669

geekbench_metal

199,366

78,088

geekbench_opencl

154,506

N/A

geekbench_vulkan

152,200

N/A

passmark_directx_10

155

N/A

passmark_directx_11

264

N/A

passmark_directx_12

100

N/A

passmark_directx_9

265

N/A

passmark_g2d

1,030

N/A

passmark_g3d

24,980

N/A

passmark_gpu_compute

13,245

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6800 XT

RX Vega 64

Core Specs

Shading Units

4,608

4,096 -11.1%

Shaders

4,608

4,096 -11.1%

TMUs

288

256 -11.1%

ROPs

128

64 -50.0%

Compute Units

72

64 -11.1%

Clocks

Base Clock

1825 MHz

1247 MHz

Boost Clock

2250 MHz

1546 MHz

Game Clock

2015 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

945 MHz 1890 Mbps effective

Memory

Memory Size

16 GB

8 GB

VRAM (MB)

16,384

8,192 -50.0%

Memory Type

GDDR6

HBM2

Memory Bus

256 bit

2048 bit

Bandwidth

512.0 GB/s

483.8 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per CU)

L2 Cache

4 MB

4 MB

L3 Cache

128 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

288.0 GPixel/s

98.94 GPixel/s

Texture Rate

648.0 GTexel/s

395.8 GTexel/s

FP32 (TFLOPS)

20.74 TFLOPS

12.66 TFLOPS

FP64 (TFLOPS)

1,296.0 GFLOPS (1:16)

791.6 GFLOPS (1:16)

FP16 (TFLOPS)

41.47 TFLOPS (2:1)

25.33 TFLOPS (2:1)

AI/RT

RT Cores

72

—

Power

TDP

300 W

295 W

TDP (W)

300

295 -1.7%

Suggested PSU

700 W

600 W

Power Connectors

2x 8-pin

2x 8-pin

Architecture

Architecture

RDNA 2.0

GCN 5.0

GPU Name

Navi 21

Vega 10

Generation

Navi II (RX 6000)

Vega (RX Vega)

Process Size

7 nm

14 nm

Transistors

26,800 million

12,500 million

Die Size

520 mm²

495 mm²

Foundry

TSMC

GlobalFoundries

Density

51.5M / mm²

25.3M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (12_1)

OpenGL

4.6

4.6

Vulkan

1.4

1.3

OpenCL

2.1

2.1

Shader Model

6.8

6.7

Physical

Slot Width

Dual-slot

Dual-slot

Length

267 mm 10.5 inches

280 mm 11 inches

Height

120 mm 4.7 inches

111 mm 4.4 inches

Outputs

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

1x HDMI 2.0b3x DisplayPort 1.4a

Bus Interface

PCIe 4.0 x16

PCIe 3.0 x16

Other

Launch Price

649 USD

499 USD

Production

End-of-life

End-of-life

Predecessor

Navi

Polaris

Successor

Navi III

Navi

View Radeon RX 6800 XT Details View Radeon RX Vega 64 Details