NVIDIA A16 PCIe vs ATI Radeon HD 3870 X2

VS

NVIDIA A16 PCIe

ATI Radeon HD 3870 X2

We compared two Desktop platform GPUs: 16GB VRAM A16 PCIe and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA A16 PCIe 's Advantages

Released 13 years and 3 months late

Boost Clock1695MHz

More VRAM (16GB vs 512GB)

Larger VRAM bandwidth (231.9GB/s vs 57.66GB/s)

960 additional rendering cores

ATI Radeon HD 3870 X2 's Advantages

Lower TDP (165W vs 250W)

Score

Benchmark

FP32 (float)

A16 PCIe +721%

4.339 TFLOPS

Radeon HD 3870 X2

0.528 TFLOPS

A16 PCIe

VS

Radeon HD 3870 X2

Graphics Card

Apr 2021

Release Date

Jan 2008

Tesla

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 4.0 x8

Bus Interface

PCIe 2.0 x16

Clock Speeds

885 MHz

Base Clock

-

1695 MHz

Boost Clock

-

1812 MHz

Memory Clock

901 MHz

Memory

16GB

Memory Size

512MB

GDDR6

Memory Type

GDDR3

128bit

Memory Bus

256bit

231.9GB/s

Bandwidth

57.66GB/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

54.24 GPixel/s

Pixel Rate

13.20 GPixel/s

67.80 GTexel/s

Texture Rate

13.20 GTexel/s

4.339 TFLOPS

FP16 (half)

-

4.339 TFLOPS

FP32 (float)

528.0 GFLOPS

135.6 GFLOPS

FP64 (double)

105.6 GFLOPS

Board Design

250W

TDP

165W

600 W

Suggested PSU

450 W

No outputs

Outputs

2x DVI 1x S-Video

8-pin EPS

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

GA107

GPU Name

R680

-

GPU Variant

R680 XT (215-0708017)

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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