NVIDIA RTX A400 vs AMD Radeon HD 6770 Green Edition

VS

NVIDIA RTX A400

AMD Radeon HD 6770 Green Edition

We compared two Desktop platform GPUs: 4GB VRAM RTX A400 and 2GB VRAM Radeon HD 6770 Green Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA RTX A400 's Advantages

Released 11 years late

Boost Clock1762MHz

More VRAM (4GB vs 2GB)

Larger VRAM bandwidth (96.00GB/s vs 21.34GB/s)

48 additional rendering cores

Lower TDP (50W vs 86W)

Score

Benchmark

FP32 (float)

RTX A400 +168%

2.706 TFLOPS

Radeon HD 6770 Green Edition

1.008 TFLOPS

RTX A400

VS

Radeon HD 6770 Green Edition

Graphics Card

Apr 2024

Release Date

Apr 2013

Quadro Ampere(Ax000)

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1417 MHz

Base Clock

-

1762 MHz

Boost Clock

-

1500 MHz

Memory Clock

667 MHz

Memory

4GB

Memory Size

2GB

GDDR6

Memory Type

GDDR3

64bit

Memory Bus

128bit

96.00GB/s

Bandwidth

21.34GB/s

Render Config

-

Compute Units

9

6

SM Count

-

768

Shading Units

720

24

TMUs

36

16

ROPs

16

24

Tensor Cores

-

6

RT Cores

-

128 KB (per SM)

L1 Cache

8 KB (per CU)

2 MB

L2 Cache

256 KB

-

Theoretical Performance

28.19 GPixel/s

Pixel Rate

11.20 GPixel/s

42.29 GTexel/s

Texture Rate

25.20 GTexel/s

2.706 TFLOPS

FP16 (half)

-

2.706 TFLOPS

FP32 (float)

1008 GFLOPS

42.29 GFLOPS

FP64 (double)

-

Board Design

50W

TDP

86W

250 W

Suggested PSU

250 W

4x mini-DisplayPort 1.4a

Outputs

2x DVI 1x HDMI 1.3a 2x mini-DisplayPort 1.1

None

Power Connectors

-

Graphics Processor

GA107

GPU Name

Juniper

-

GPU Variant

Juniper LE (215-0754009)

Ampere

Architecture

TeraScale 2

Samsung

Foundry

TSMC

8 nm

Process Size

40 nm

8.7 billion

Transistors

1.04 billion

200 mm²

Die Size

166 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

3.0

OpenCL

1.2

1.3

Vulkan

N/A

8.6

CUDA

-

6.8

Shader Model

5.0

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