AMD Radeon RX 6800 vs AMD Radeon R5 340X OEM

VS

AMD Radeon RX 6800

AMD Radeon R5 340X OEM

We compared two Desktop platform GPUs: 16GB VRAM Radeon RX 6800 and 2GB VRAM Radeon R5 340X OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6800 's Advantages

Released 5 years and 5 months late

Boost Clock2105MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 16.00GB/s)

3456 additional rendering cores

AMD Radeon R5 340X OEM 's Advantages

Lower TDP (65W vs 250W)

Score

Benchmark

FP32 (float)

Radeon RX 6800 +2240%

16.17 TFLOPS

Radeon R5 340X OEM

0.691 TFLOPS

Radeon RX 6800

VS

Radeon R5 340X OEM

Graphics Card

Oct 2020

Release Date

May 2015

Navi II

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 4.0 x16

Bus Interface

PCIe 3.0 x8

Clock Speeds

1700 MHz

Base Clock

-

2105 MHz

Boost Clock

-

2000 MHz

Memory Clock

1000 MHz

Memory

16GB

Memory Size

2GB

GDDR6

Memory Type

DDR3

256bit

Memory Bus

64bit

512.0GB/s

Bandwidth

16.00GB/s

Render Config

60

Compute Units

6

-

3840

Shading Units

384

240

TMUs

24

96

ROPs

8

-

60

RT Cores

-

128 KB per Array

L1 Cache

16 KB (per CU)

4 MB

L2 Cache

128 KB

128 MB

L3 Cache

-

Theoretical Performance

202.1 GPixel/s

Pixel Rate

7.200 GPixel/s

505.2 GTexel/s

Texture Rate

21.60 GTexel/s

32.33 TFLOPS

FP16 (half)

-

16.17 TFLOPS

FP32 (float)

691.2 GFLOPS

1010 GFLOPS

FP64 (double)

43.20 GFLOPS

Board Design

250W

TDP

65W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.2

2x 8-pin

Power Connectors

None

Graphics Processor

Navi 21

GPU Name

Oland

Navi 21 XL (215-121000187)

GPU Variant

Oland XT (215-0837000)

RDNA 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

7 nm

Process Size

28 nm

26.8 billion

Transistors

0.95 billion

520 mm²

Die Size

77 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.1

OpenCL

1.2

1.3

Vulkan

1.2

-

6.5

Shader Model

5.1

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