AMD Radeon HD 6990 vs NVIDIA GeForce GTX 1080 Ti

VS

AMD Radeon HD 6990

NVIDIA GeForce GTX 1080 Ti

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 11GB VRAM GeForce GTX 1080 Ti to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 1080 Ti 's Advantages

Released 6 years late

Boost Clock1582MHz

More VRAM (11GB vs 2GB)

Larger VRAM bandwidth (484.4GB/s vs 160.0GB/s)

2048 additional rendering cores

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990

2.55 TFLOPS

GeForce GTX 1080 Ti +344%

11.34 TFLOPS

Radeon HD 6990

VS

GeForce GTX 1080 Ti

Graphics Card

Mar 2011

Release Date

Mar 2017

Northern Islands

Generation

GeForce 10

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1481 MHz

-

Boost Clock

1582 MHz

1250 MHz

Memory Clock

1376 MHz

Memory

2GB

Memory Size

11GB

GDDR5

Memory Type

GDDR5X

256bit

Memory Bus

352bit

160.0GB/s

Bandwidth

484.4GB/s

Render Config

24

Compute Units

-

SM Count

28

1536

Shading Units

3584

96

TMUs

224

32

ROPs

88

-

8 KB (per CU)

L1 Cache

48 KB (per SM)

512 KB

L2 Cache

0 MB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

139.2 GPixel/s

79.68 GTexel/s

Texture Rate

354.4 GTexel/s

-

FP16 (half)

177.2 GFLOPS

2.550 TFLOPS

FP32 (float)

11.34 TFLOPS

637.4 GFLOPS

FP64 (double)

354.4 GFLOPS

Board Design

375W

TDP

250W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 2.0 3x DisplayPort 1.4a

2x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Antilles

GPU Name

GP102

Antilles XT (215-0807027)

GPU Variant

GP102-350-K1-A1

TeraScale 3

Architecture

Pascal

TSMC

Foundry

TSMC

40 nm

Process Size

16 nm

2.64 billion

Transistors

11.8 billion

389 mm²

Die Size

471 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_1)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.3

-

CUDA

6.1

5.0

Shader Model

6.4

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