AMD Radeon RX Vega 64 Limited Edition vs AMD Radeon RX 6800

VS

AMD Radeon RX Vega 64 Limited Edition

AMD Radeon RX 6800

We compared two Desktop platform GPUs: 8GB VRAM Radeon RX Vega 64 Limited Edition and 16GB VRAM Radeon RX 6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX Vega 64 Limited Edition 's Advantages

256 additional rendering cores

AMD Radeon RX 6800 's Advantages

Released 3 years and 2 months late

Boost Clock has increased by 36% (2105MHz vs 1546MHz)

More VRAM (16GB vs 8GB)

Larger VRAM bandwidth (512.0GB/s vs 483.8GB/s)

Lower TDP (250W vs 295W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 64 Limited Edition

12.66 TFLOPS

Radeon RX 6800 +27%

16.17 TFLOPS

Radeon RX Vega 64 Limited Edition

VS

Radeon RX 6800

Graphics Card

Aug 2017

Release Date

Oct 2020

Vega

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

1247 MHz

Base Clock

1700 MHz

1546 MHz

Boost Clock

2105 MHz

945 MHz

Memory Clock

2000 MHz

Memory

8GB

Memory Size

16GB

HBM2

Memory Type

GDDR6

2048bit

Memory Bus

256bit

483.8GB/s

Bandwidth

512.0GB/s

Render Config

64

Compute Units

60

-

4096

Shading Units

3840

256

TMUs

240

64

ROPs

96

-

RT Cores

60

16 KB (per CU)

L1 Cache

128 KB per Array

4 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

98.94 GPixel/s

Pixel Rate

202.1 GPixel/s

395.8 GTexel/s

Texture Rate

505.2 GTexel/s

25.33 TFLOPS

FP16 (half)

32.33 TFLOPS

12.66 TFLOPS

FP32 (float)

16.17 TFLOPS

791.6 GFLOPS

FP64 (double)

1010 GFLOPS

Board Design

295W

TDP

250W

600 W

Suggested PSU

600 W

1x HDMI 2.0b 3x DisplayPort 1.4a

Outputs

1x HDMI 2.1 2x DisplayPort 1.4a 1x USB Type-C

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Vega 10

GPU Name

Navi 21

Vega 10 XT (215-0894200)

GPU Variant

Navi 21 XL (215-121000187)

GCN 5.0

Architecture

RDNA 2.0

GlobalFoundries

Foundry

TSMC

14 nm

Process Size

7 nm

12.5 billion

Transistors

26.8 billion

495 mm²

Die Size

520 mm²

Graphics Features

12 (12_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1

OpenCL

2.1

1.2

Vulkan

1.3

-

6.4

Shader Model

6.5

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