GPU Comparison

A

AMD

RADEON

AMD Radeon RX 6400

CORE STATE Navi 24

VRAM 4 GB

CLOCK SPEED 2321 MHz

TDP 53 W

BUS WIDTH 64 bit

ARCHITECTURE RDNA 2.0

nm

PROCESS 6 nm

LAUNCH DATE 2022

VS

NVIDIA

GEFORCE

GeForce GT 640 Rev. 2

CORE STATE GK208

VRAM 1024 MB

CLOCK SPEED —

TDP 49 W

BUS WIDTH 64 bit

ARCHITECTURE Kepler 2.0

nm

PROCESS 28 nm

LAUNCH DATE 2013

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

176

N/A

geekbench_opencl

32,977

N/A

geekbench_vulkan

38,040

N/A

passmark_directx_10

54

N/A

passmark_directx_11

70

N/A

passmark_directx_12

30

N/A

passmark_directx_9

93

N/A

passmark_g2d

722

N/A

passmark_g3d

7,673

N/A

passmark_gpu_compute

2,812

N/A

DETAILED SPECIFICATIONS

SPECIFICATION

RX 6400

GT 640 Rev. 2

Core Specs

Shading Units

768

384 -50.0%

Shaders

768

384 -50.0%

TMUs

48

32 -33.3%

ROPs

32

8 -75.0%

Compute Units

12

—

Clocks

Base Clock

1923 MHz

—

Boost Clock

2321 MHz

—

GPU Clock

—

1046 MHz

Game Clock

2039 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1252 MHz 5 Gbps effective

Memory

Memory Size

4 GB

1024 MB

VRAM (MB)

4,096

1,024 -75.0%

Memory Type

GDDR6

GDDR5

Memory Bus

64 bit

64 bit

Bandwidth

128.0 GB/s

40.06 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

1024 KB

512 KB

L3 Cache

16 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

74.27 GPixel/s

8.368 GPixel/s

Texture Rate

111.4 GTexel/s

33.47 GTexel/s

FP32 (TFLOPS)

3.565 TFLOPS

803.3 GFLOPS

FP64 (TFLOPS)

222.8 GFLOPS (1:16)

33.47 GFLOPS (1:24)

FP16 (TFLOPS)

7.130 TFLOPS (2:1)

—

AI/RT

RT Cores

12

—

Power

TDP

53 W

49 W

TDP (W)

53

49 -7.5%

Suggested PSU

250 W

200 W

Power Connectors

None

None

Architecture

Architecture

RDNA 2.0

Kepler 2.0

GPU Name

Navi 24

GK208

Generation

Navi II (RX 6000)

GeForce 600

Process Size

6 nm

28 nm

Transistors

5,400 million

1,020 million

Die Size

107 mm²

87 mm²

Foundry

TSMC

TSMC

Density

50.5M / mm²

11.7M / mm²

API Support

DirectX

12 Ultimate (12_2)

12 (11_0)

OpenGL

4.6

4.6

Vulkan

1.4

1.2.175

OpenCL

2.2

3.0

CUDA

—

3.5

Shader Model

6.8

6.5 (5.1)

Physical

Slot Width

Single-slot

Single-slot

Length

—

145 mm 5.7 inches

Outputs

1x HDMI 2.11x DisplayPort 1.4a

1x DVI1x HDMI 1.4a1x VGA

Bus Interface

PCIe 4.0 x4

PCIe 2.0 x8

Other

Launch Price

159 USD

89 USD

Production

End-of-life

End-of-life

Predecessor

Navi

GeForce 500

Successor

Navi III

GeForce 700

View Radeon RX 6400 Details View GeForce GT 640 Rev. 2 Details