AMD Radeon R5 340X OEM vs AMD Radeon RX 6400

VS

AMD Radeon R5 340X OEM

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R5 340X OEM and 4GB VRAM Radeon RX 6400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon RX 6400 's Advantages

Released 6 years and 8 months late

Boost Clock2321MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 16.00GB/s)

384 additional rendering cores

Lower TDP (53W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R5 340X OEM

0.691 TFLOPS

Radeon RX 6400 +415%

3.565 TFLOPS

Radeon R5 340X OEM

VS

Radeon RX 6400

Graphics Card

May 2015

Release Date

Jan 2022

Pirate Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x8

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

1923 MHz

-

Boost Clock

2321 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

4GB

DDR3

Memory Type

GDDR6

64bit

Memory Bus

64bit

16.00GB/s

Bandwidth

128.0GB/s

Render Config

6

Compute Units

12

-

384

Shading Units

768

24

TMUs

48

8

ROPs

32

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

128 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

7.200 GPixel/s

Pixel Rate

74.27 GPixel/s

21.60 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

691.2 GFLOPS

FP32 (float)

3.565 TFLOPS

43.20 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

65W

TDP

53W

250 W

Suggested PSU

250 W

1x DVI 1x DisplayPort 1.2

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Oland

GPU Name

Navi 24

Oland XT (215-0837000)

GPU Variant

Navi 24 XL (215-135000046)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

0.95 billion

Transistors

5.4 billion

77 mm²

Die Size

107 mm²

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

1.2

OpenCL

2.2

1.2

Vulkan

1.3

-

5.1

Shader Model

6.7

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