AMD Radeon R7 450 OEM vs AMD Radeon RX 6400

VS

AMD Radeon R7 450 OEM AMD Radeon RX 6400

We compared two Desktop platform GPUs: 2GB VRAM Radeon R7 450 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 5 years and 7 months late

Boost Clock2321MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (128.0GB/s vs 72.00GB/s)

256 additional rendering cores

Lower TDP (53W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R7 450 OEM

0.947 TFLOPS

Radeon RX 6400 +276%

3.565 TFLOPS

Radeon R7 450 OEM

VS

Radeon RX 6400

Graphics Card

Jun 2016

Release Date

Jan 2022

Arctic Islands

Generation

Navi II

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 4.0 x4

Clock Speeds

-

Base Clock

1923 MHz

-

Boost Clock

2321 MHz

1125 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

128bit

Memory Bus

64bit

72.00GB/s

Bandwidth

128.0GB/s

Render Config

-

SM Count

-

8

Compute Units

12

512

Shading Units

768

32

TMUs

48

16

ROPs

32

-

Tensor Cores

-

RT Cores

12

16 KB (per CU)

L1 Cache

128 KB per Array

256 KB

L2 Cache

1024 KB

Theoretical Performance

14.80 GPixel/s

Pixel Rate

74.27 GPixel/s

29.60 GTexel/s

Texture Rate

111.4 GTexel/s

-

FP16 (half)

7.130 TFLOPS

947.2 GFLOPS

FP32 (float)

3.565 TFLOPS

59.20 GFLOPS

FP64 (double)

222.8 GFLOPS

Graphics Processor

Cape Verde

GPU Name

Navi 24

Cape Verde PRO2

GPU Variant

Navi 24 XL (215-135000046)

GCN 1.0

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

6 nm

1.5 billion

Transistors

5.4 billion

123 mm²

Die Size

107 mm²

Board Design

65W

TDP

53W

250 W

Suggested PSU

250 W

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x HDMI 2.1 1x DisplayPort 1.4a

None

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

12 Ultimate (12_2)

4.6

OpenGL

4.6

2.1 (1.2)

OpenCL

2.2

1.2.170

Vulkan

1.3

-

CUDA

-

6.5 (5.1)

Shader Model

6.6

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