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 GTX 660 Ti

CORE STATE GK104

VRAM 2 GB

CLOCK SPEED 980 MHz

TDP 150 W

BUS WIDTH 192 bit

ARCHITECTURE Kepler

nm

PROCESS 28 nm

LAUNCH DATE 2012

PERFORMANCE BENCHMARKS

3dmark_3dmark_steel_nomad_dx12

176

N/A

geekbench_opencl

32,977

15,095

geekbench_vulkan

38,040

15,511

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

GTX 660 Ti

Core Specs

Shading Units

768

1,344 +75.0%

Shaders

768

1,344 +75.0%

TMUs

48

112 +133.3%

ROPs

32

24 -25.0%

Compute Units

12

—

Clocks

Base Clock

1923 MHz

915 MHz

Boost Clock

2321 MHz

980 MHz

Game Clock

2039 MHz

—

Memory Clock

2000 MHz 16 Gbps effective

1502 MHz 6 Gbps effective

Memory

Memory Size

4 GB

2 GB

VRAM (MB)

4,096

2,048 -50.0%

Memory Type

GDDR6

GDDR5

Memory Bus

64 bit

192 bit

Bandwidth

128.0 GB/s

144.2 GB/s

Cache

L1 Cache

128 KB per Array

16 KB (per SMX)

L2 Cache

1024 KB

384 KB

L3 Cache

16 MB

—

L0 Cache

32 KB per WGP

—

Performance

Pixel Rate

74.27 GPixel/s

27.44 GPixel/s

Texture Rate

111.4 GTexel/s

109.8 GTexel/s

FP32 (TFLOPS)

3.565 TFLOPS

2.634 TFLOPS

FP64 (TFLOPS)

222.8 GFLOPS (1:16)

109.8 GFLOPS (1:24)

FP16 (TFLOPS)

7.130 TFLOPS (2:1)

—

AI/RT

RT Cores

12

—

Power

TDP

53 W

150 W

TDP (W)

53

150 +183.0%

Suggested PSU

250 W

450 W

Power Connectors

None

2x 6-pin

Architecture

Architecture

RDNA 2.0

Kepler

GPU Name

Navi 24

GK104

Generation

Navi II (RX 6000)

GeForce 600

Process Size

6 nm

28 nm

Transistors

5,400 million

3,540 million

Die Size

107 mm²

294 mm²

Foundry

TSMC

TSMC

Density

50.5M / mm²

12.0M / 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

—

3.0

Shader Model

6.8

6.5 (5.1)

Physical

Slot Width

Single-slot

Dual-slot

Length

—

241 mm 9.5 inches

Outputs

1x HDMI 2.11x DisplayPort 1.4a

2x DVI1x HDMI 1.4a1x DisplayPort 1.2

Bus Interface

PCIe 4.0 x4

PCIe 3.0 x16

Other

Launch Price

159 USD

299 USD

Production

End-of-life

End-of-life

Predecessor

Navi

GeForce 500

Successor

Navi III

GeForce 700

View Radeon RX 6400 Details View GeForce GTX 660 Ti Details