GPU Comparison

A

AMD

RADEON

AMD Radeon HD 6770

CORE STATE Juniper

VRAM 1024 MB

CLOCK SPEED —

TDP 108 W

BUS WIDTH 128 bit

ARCHITECTURE TeraScale 2

nm

PROCESS 40 nm

LAUNCH DATE 2011

VS

A

AMD

RADEON

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

PERFORMANCE BENCHMARKS

geekbench_opencl

3,802

32,977

3dmark_3dmark_steel_nomad_dx12

N/A

176

geekbench_vulkan

N/A

38,040

passmark_directx_10

N/A

54

passmark_directx_11

N/A

70

passmark_directx_12

N/A

30

passmark_directx_9

N/A

93

passmark_g2d

N/A

722

passmark_g3d

N/A

7,673

passmark_gpu_compute

N/A

2,812

DETAILED SPECIFICATIONS

SPECIFICATION

HD 6770

RX 6400

Core Specs

Shading Units

800

768 -4.0%

Shaders

800

768 -4.0%

TMUs

40

48 +20.0%

ROPs

16

32 +100.0%

Compute Units

10

12 +20.0%

Clocks

Base Clock

—

1923 MHz

Boost Clock

—

2321 MHz

GPU Clock

850 MHz

—

Game Clock

—

2039 MHz

Memory Clock

1200 MHz 4.8 Gbps effective

2000 MHz 16 Gbps effective

Memory

Memory Size

1024 MB

4 GB

VRAM (MB)

1,024

4,096 +300.0%

Memory Type

GDDR5

GDDR6

Memory Bus

128 bit

64 bit

Bandwidth

76.80 GB/s

128.0 GB/s

Cache

L1 Cache

8 KB (per CU)

128 KB per Array

L2 Cache

256 KB

1024 KB

L3 Cache

—

16 MB

L0 Cache

—

32 KB per WGP

Performance

Pixel Rate

13.60 GPixel/s

74.27 GPixel/s

Texture Rate

34.00 GTexel/s

111.4 GTexel/s

FP32 (TFLOPS)

1,360.0 GFLOPS

3.565 TFLOPS

FP64 (TFLOPS)

—

222.8 GFLOPS (1:16)

FP16 (TFLOPS)

—

7.130 TFLOPS (2:1)

AI/RT

RT Cores

—

12

Power

TDP

108 W

53 W

TDP (W)

108

53 -50.9%

Suggested PSU

300 W

250 W

Power Connectors

1x 6-pin

None

Architecture

Architecture

TeraScale 2

RDNA 2.0

GPU Name

Juniper

Navi 24

Generation

Northern Islands (HD 6700)

Navi II (RX 6000)

Process Size

40 nm

6 nm

Transistors

1,040 million

5,400 million

Die Size

166 mm²

107 mm²

Foundry

TSMC

TSMC

Density

6.3M / mm²

50.5M / mm²

API Support

DirectX

11.2 (11_0)

12 Ultimate (12_2)

OpenGL

4.4

4.6

Vulkan

—

1.4

OpenCL

1.2

2.2

Shader Model

5.0

6.8

Physical

Slot Width

Dual-slot

Single-slot

Length

198 mm 7.8 inches

—

Outputs

2x DVI1x HDMI 1.3a2x mini-DisplayPort 1.1

1x HDMI 2.11x DisplayPort 1.4a

Bus Interface

PCIe 2.0 x16

PCIe 4.0 x4

Other

Launch Price

129 USD

159 USD

Production

End-of-life

End-of-life

Predecessor

Evergreen

Navi

Successor

Southern Islands

Navi III

View Radeon HD 6770 Details View Radeon RX 6400 Details