AMD Radeon HD 6990 vs AMD Radeon Pro SSG

VS

AMD Radeon HD 6990

AMD Radeon Pro SSG

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 16GB VRAM Radeon Pro SSG to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro SSG 's Advantages

Released 6 years and 5 months late

Boost Clock1500MHz

More VRAM (16GB vs 2GB)

Larger VRAM bandwidth (483.8GB/s vs 160.0GB/s)

2560 additional rendering cores

Lower TDP (260W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990

2.55 TFLOPS

Radeon Pro SSG +381%

12.29 TFLOPS

Radeon HD 6990

VS

Radeon Pro SSG

Graphics Card

Mar 2011

Release Date

Aug 2017

Northern Islands

Generation

Radeon Pro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1440 MHz

-

Boost Clock

1500 MHz

1250 MHz

Memory Clock

945 MHz

Memory

2GB

Memory Size

16GB

GDDR5

Memory Type

HBM2

256bit

Memory Bus

2048bit

160.0GB/s

Bandwidth

483.8GB/s

Render Config

24

Compute Units

64

-

1536

Shading Units

4096

96

TMUs

256

32

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

4 MB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

96.00 GPixel/s

79.68 GTexel/s

Texture Rate

384.0 GTexel/s

-

FP16 (half)

24.58 TFLOPS

2.550 TFLOPS

FP32 (float)

12.29 TFLOPS

637.4 GFLOPS

FP64 (double)

768.0 GFLOPS

Board Design

375W

TDP

260W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

6x mini-DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Antilles

GPU Name

Vega 10

Antilles XT (215-0807027)

GPU Variant

Vega 10 XT GL (215-0894124)

TeraScale 3

Architecture

GCN 5.0

TSMC

Foundry

GlobalFoundries

40 nm

Process Size

14 nm

2.64 billion

Transistors

12.5 billion

389 mm²

Die Size

495 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.2

-

5.0

Shader Model

6.4

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