AMD Radeon HD 6850 X2 vs NVIDIA A40 PCIe

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6850 X2 and 48GB VRAM A40 PCIe to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6850 X2 's Advantages

Lower TDP (254W vs 300W)

NVIDIA A40 PCIe 's Advantages

Released 9 years and 1 months late

Boost Clock1740MHz

More VRAM (48GB vs 2GB)

Larger VRAM bandwidth (695.8GB/s vs 134.4GB/s)

9792 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6850 X2

1.536 TFLOPS

A40 PCIe +2336%

37.42 TFLOPS

Radeon HD 6850 X2

VS

A40 PCIe

Graphics Card

Sep 2011

Release Date

Oct 2020

Northern Islands

Generation

Tesla

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1305 MHz

-

Boost Clock

1740 MHz

1050 MHz

Memory Clock

1812 MHz

Memory

2GB

Memory Size

48GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

384bit

134.4GB/s

Bandwidth

695.8GB/s

Render Config

-

SM Count

84

12

Compute Units

-

960

Shading Units

10752

48

TMUs

336

32

ROPs

112

-

Tensor Cores

336

-

RT Cores

84

8 KB (per CU)

L1 Cache

128 KB (per SM)

512 KB

L2 Cache

6 MB

Theoretical Performance

25.60 GPixel/s

Pixel Rate

194.9 GPixel/s

38.40 GTexel/s

Texture Rate

584.6 GTexel/s

-

FP16 (half)

37.42 TFLOPS

1.536 TFLOPS

FP32 (float)

37.42 TFLOPS

-

FP64 (double)

584.6 GFLOPS

Graphics Processor

Barts

GPU Name

GA102

Barts PRO (215-0798006)

GPU Variant

-

TeraScale 2

Architecture

Ampere

TSMC

Foundry

Samsung

40 nm

Process Size

8 nm

1.7 billion

Transistors

28.3 billion

255 mm²

Die Size

628 mm²

Board Design

254W

TDP

300W

600 W

Suggested PSU

700 W

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

Outputs

3x DisplayPort 1.4a

2x 8-pin

Power Connectors

8-pin EPS

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

6.6

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