AMD Radeon HD 6990 vs AMD Radeon Pro W6800

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 32GB VRAM Radeon Pro W6800 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon Pro W6800 's Advantages

Released 10 years and 3 months late

Boost Clock2320MHz

More VRAM (32GB vs 2GB)

Larger VRAM bandwidth (512.0GB/s vs 160.0GB/s)

2304 additional rendering cores

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990

2.55 TFLOPS

Radeon Pro W6800 +598%

17.82 TFLOPS

Radeon HD 6990

VS

Radeon Pro W6800

Graphics Card

Mar 2011

Release Date

Jun 2021

Northern Islands

Generation

Radeon Pro

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 4.0 x16

Clock Speeds

-

Base Clock

2075 MHz

-

Boost Clock

2320 MHz

1250 MHz

Memory Clock

2000 MHz

Memory

2GB

Memory Size

32GB

GDDR5

Memory Type

GDDR6

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

512.0GB/s

Render Config

-

SM Count

-

24

Compute Units

60

1536

Shading Units

3840

96

TMUs

240

32

ROPs

96

-

Tensor Cores

-

RT Cores

60

8 KB (per CU)

L1 Cache

128 KB per Array

512 KB

L2 Cache

4 MB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

222.7 GPixel/s

79.68 GTexel/s

Texture Rate

556.8 GTexel/s

-

FP16 (half)

35.64 TFLOPS

2.550 TFLOPS

FP32 (float)

17.82 TFLOPS

637.4 GFLOPS

FP64 (double)

1114 GFLOPS

Graphics Processor

Antilles

GPU Name

Navi 21

Antilles XT (215-0807027)

GPU Variant

-

TeraScale 3

Architecture

RDNA 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

7 nm

2.64 billion

Transistors

26.8 billion

389 mm²

Die Size

520 mm²

Board Design

375W

TDP

250W

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 Features

11.2 (11_0)

DirectX

12 Ultimate (12_2)

4.4

OpenGL

4.6

1.2

OpenCL

2.1

N/A

Vulkan

1.3

-

CUDA

-

5.0

Shader Model

6.5

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