AMD Radeon R7 340 OEM vs AMD Radeon RX 6400

VS

AMD Radeon R7 340 OEM

AMD Radeon RX 6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 340 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 R7 340 OEM 's Advantages

Lower TDP (50W vs 53W)

AMD Radeon RX 6400 's Advantages

Released 6 years and 8 months late

Boost Clock has increased by 198% (2321MHz vs 780MHz)

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 64.00GB/s)

384 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon R7 340 OEM

0.599 TFLOPS

Radeon RX 6400 +495%

3.565 TFLOPS

Radeon R7 340 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

730 MHz

Base Clock

1923 MHz

780 MHz

Boost Clock

2321 MHz

1000 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

64bit

64.00GB/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

256 KB

L2 Cache

1024 KB

-

L3 Cache

16 MB

Theoretical Performance

6.240 GPixel/s

Pixel Rate

74.27 GPixel/s

18.72 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

599.0 GFLOPS

FP32 (float)

3.565 TFLOPS

37.44 GFLOPS

FP64 (double)

222.8 GFLOPS

Board Design

50W

TDP

53W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x VGA

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Processor

Oland

GPU Name

Navi 24

-

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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