AMD Radeon HD 6870 X2 vs AMD Radeon Pro VII

VS

AMD Radeon HD 6870 X2

AMD Radeon Pro VII

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6870 X2 and 16GB VRAM Radeon Pro VII to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro VII 's Advantages

Released 8 years and 10 months late

Boost Clock1700MHz

More VRAM (16GB vs 1024GB)

Larger VRAM bandwidth (1020GB/s vs 134.4GB/s)

2720 additional rendering cores

Lower TDP (250W vs 300W)

Score

Benchmark

FP32 (float)

Radeon HD 6870 X2

2.016 TFLOPS

Radeon Pro VII +547%

13.06 TFLOPS

Radeon HD 6870 X2

VS

Radeon Pro VII

Graphics Card

Jul 2011

Release Date

May 2020

Northern Islands

Generation

Radeon Pro Vega

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

1400 MHz

-

Boost Clock

1700 MHz

1050 MHz

Memory Clock

1000 MHz

Memory

1024MB

Memory Size

16GB

GDDR5

Memory Type

HBM2

256bit

Memory Bus

4096bit

134.4GB/s

Bandwidth

1020GB/s

Render Config

14

Compute Units

60

-

1120

Shading Units

3840

56

TMUs

240

32

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

4 MB

-

Theoretical Performance

28.80 GPixel/s

Pixel Rate

108.8 GPixel/s

50.40 GTexel/s

Texture Rate

408.0 GTexel/s

-

FP16 (half)

26.11 TFLOPS

2.016 TFLOPS

FP32 (float)

13.06 TFLOPS

-

FP64 (double)

6.528 TFLOPS

Board Design

300W

TDP

250W

700 W

Suggested PSU

600 W

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

Outputs

6x mini-DisplayPort 1.4a

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

Vega 20

Barts XT (215-0798000)

GPU Variant

Vega 20 GLXT WS (215-0914026)

TeraScale 2

Architecture

GCN 5.1

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

1.7 billion

Transistors

13.23 billion

255 mm²

Die Size

331 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

5.0

Shader Model

6.7

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