NVIDIA A2 vs ATI Radeon HD 3870

VS

NVIDIA A2

ATI Radeon HD 3870

We compared two Desktop platform GPUs: 16GB VRAM A2 and 512MB VRAM Radeon HD 3870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A2 's Advantages

Released 14 years late

Boost Clock1770MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (200.1GB/s vs 72.06GB/s)

960 additional rendering cores

Lower TDP (60W vs 106W)

Score

Benchmark

FP32 (float)

A2 +811%

4.531 TFLOPS

Radeon HD 3870

0.497 TFLOPS

A2

VS

Radeon HD 3870

Graphics Card

Nov 2021

Release Date

Nov 2007

Quadro

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

1440 MHz

Base Clock

-

1770 MHz

Boost Clock

-

1563 MHz

Memory Clock

1126 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR4

128bit

Memory Bus

256bit

200.1GB/s

Bandwidth

72.06GB/s

Render Config

-

Compute Units

4

10

SM Count

-

1280

Shading Units

320

40

TMUs

16

32

ROPs

16

40

Tensor Cores

-

10

RT Cores

-

128 KB (per SM)

L1 Cache

-

2 MB

L2 Cache

256 KB

-

Theoretical Performance

56.64 GPixel/s

Pixel Rate

12.43 GPixel/s

70.80 GTexel/s

Texture Rate

12.43 GTexel/s

4.531 TFLOPS

FP16 (half)

-

4.531 TFLOPS

FP32 (float)

497.3 GFLOPS

70.80 GFLOPS

FP64 (double)

99.46 GFLOPS

Board Design

60W

TDP

106W

250 W

Suggested PSU

300 W

No outputs

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

GA107

GPU Name

RV670

-

GPU Variant

RV670 XT (215-0708005)

Ampere

Architecture

TeraScale

Samsung

Foundry

TSMC

8 nm

Process Size

55 nm

Unknown

Transistors

0.666 billion

Unknown

Die Size

192 mm²

Graphics Features

12 Ultimate (12_2)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3 (full) 4.0 (partial)

3.0

OpenCL

N/A

1.3

Vulkan

N/A

8.6

CUDA

-

6.6

Shader Model

4.1

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