AMD Radeon Instinct MI8 vs NVIDIA Tesla K20X

VS

AMD Radeon Instinct MI8

NVIDIA Tesla K20X

We compared two Professional market GPUs: 4GB VRAM Radeon Instinct MI8 and 6GB VRAM Tesla K20X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Instinct MI8 's Advantages

Released 4 years and 1 months late

Larger VRAM bandwidth (512.0GB/s vs 249.6GB/s)

1408 additional rendering cores

Lower TDP (175W vs 235W)

NVIDIA Tesla K20X 's Advantages

More VRAM (6GB vs 4GB)

Score

Benchmark

FP32 (float)

Radeon Instinct MI8 +108%

8.192 TFLOPS

Tesla K20X

3.935 TFLOPS

Radeon Instinct MI8

VS

Tesla K20X

Graphics Card

Dec 2016

Release Date

Nov 2012

Radeon Instinct

Generation

Tesla

Professional

Type

Professional

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

500 MHz

Memory Clock

1300 MHz

Memory

4GB

Memory Size

6GB

HBM

Memory Type

GDDR5

4096bit

Memory Bus

384bit

512.0GB/s

Bandwidth

249.6GB/s

Render Config

64

Compute Units

-

4096

Shading Units

2688

256

TMUs

224

64

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

2 MB

L2 Cache

1536 KB

-

Theoretical Performance

64.00 GPixel/s

Pixel Rate

40.99 GPixel/s

256.0 GTexel/s

Texture Rate

164.0 GTexel/s

8.192 TFLOPS

FP16 (half)

-

8.192 TFLOPS

FP32 (float)

3.935 TFLOPS

512.0 GFLOPS

FP64 (double)

1312 GFLOPS

Board Design

175W

TDP

235W

450 W

Suggested PSU

550 W

No outputs

Outputs

No outputs

1x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Fiji

GPU Name

GK110

Fiji XT CA (215-0862120)

GPU Variant

-

GCN 3.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

8.9 billion

Transistors

7.08 billion

596 mm²

Die Size

561 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_0)

4.6

OpenGL

4.6

2.1

OpenCL

3.0

1.2.170

Vulkan

1.1

-

CUDA

3.5

6.5

Shader Model

5.1

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