AMD Radeon RX Vega 64 Liquid Cooling vs AMD Radeon RX 6800 XT

VS

AMD Radeon RX Vega 64 Liquid Cooling

AMD Radeon RX 6800 XT

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

Main Differences

AMD Radeon RX 6800 XT 's Advantages

Released 3 years and 2 months late

Boost Clock has increased by 34% (2250MHz vs 1677MHz)

More VRAM (16GB vs 8GB)

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

512 additional rendering cores

Lower TDP (300W vs 345W)

Score

Benchmark

FP32 (float)

Radeon RX Vega 64 Liquid Cooling

13.74 TFLOPS

Radeon RX 6800 XT +50%

20.74 TFLOPS

Radeon RX Vega 64 Liquid Cooling

VS

Radeon RX 6800 XT

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

1406 MHz

Base Clock

1825 MHz

1677 MHz

Boost Clock

2250 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

72

-

4096

Shading Units

4608

256

TMUs

288

64

ROPs

128

-

RT Cores

72

16 KB (per CU)

L1 Cache

128 KB per Array

4 MB

L2 Cache

4 MB

-

L3 Cache

128 MB

Theoretical Performance

107.3 GPixel/s

Pixel Rate

288.0 GPixel/s

429.3 GTexel/s

Texture Rate

648.0 GTexel/s

27.48 TFLOPS

FP16 (half)

41.47 TFLOPS

13.74 TFLOPS

FP32 (float)

20.74 TFLOPS

858.6 GFLOPS

FP64 (double)

1296 GFLOPS

Board Design

345W

TDP

300W

700 W

Suggested PSU

700 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 XTX

GPU Variant

Navi 21 XT (215-121000177)

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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