AMD Radeon HD 6870 1600SP Edition vs NVIDIA RTX A400

VS

AMD Radeon HD 6870 1600SP Edition

NVIDIA RTX A400

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 1600SP Edition and 4GB VRAM RTX A400 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6870 1600SP Edition 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 96.00GB/s)

832 additional rendering cores

NVIDIA RTX A400 's Advantages

Released 11 years and 3 months late

Boost Clock1762MHz

More VRAM (4GB vs 1024GB)

Lower TDP (50W vs 175W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 1600SP Edition

2.72 TFLOPS

RTX A400

2.706 TFLOPS

Radeon HD 6870 1600SP Edition

VS

RTX A400

Graphics Card

Jan 2013

Release Date

Apr 2024

Northern Islands

Generation

Quadro Ampere(Ax000)

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x8

Clock Speeds

-

Base Clock

1417 MHz

-

Boost Clock

1762 MHz

1050 MHz

Memory Clock

1500 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

64bit

134.4GB/s

Bandwidth

96.00GB/s

Render Config

20

Compute Units

-

SM Count

6

1600

Shading Units

768

80

TMUs

24

32

ROPs

16

-

Tensor Cores

24

-

RT Cores

6

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

2 MB

-

Theoretical Performance

27.20 GPixel/s

Pixel Rate

28.19 GPixel/s

68.00 GTexel/s

Texture Rate

42.29 GTexel/s

-

FP16 (half)

2.706 TFLOPS

2.720 TFLOPS

FP32 (float)

2.706 TFLOPS

544.0 GFLOPS

FP64 (double)

42.29 GFLOPS

Board Design

175W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

4x mini-DisplayPort 1.4a

2x 6-pin

Power Connectors

None

Graphics Processor

Cypress

GPU Name

GA107

Cypress XT (215-0735033)

GPU Variant

-

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

2.154 billion

Transistors

8.7 billion

334 mm²

Die Size

200 mm²

Graphics Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

8.6

5.0

Shader Model

6.8

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