NVIDIA GeForce GTX 1080 Ti vs AMD Radeon HD 7990

VS

NVIDIA GeForce GTX 1080 Ti AMD Radeon HD 7990

We compared two Desktop platform GPUs: 11GB VRAM GeForce GTX 1080 Ti and 3GB VRAM Radeon HD 7990 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 3 years and 11 months late

Boost Clock has increased by 58% (1582MHz vs 1000MHz)

More VRAM (11GB vs 3GB)

Larger VRAM bandwidth (484.4GB/s vs 288.0GB/s)

1536 additional rendering cores

Lower TDP (250W vs 375W)

Score

Benchmark

FP32 (float)

GeForce GTX 1080 Ti +176%

11.34 TFLOPS

Radeon HD 7990

4.096 TFLOPS

GeForce GTX 1080 Ti

VS

Radeon HD 7990

Graphics Card

Mar 2017

Release Date

Apr 2013

GeForce 10

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

1481 MHz

Base Clock

950 MHz

1582 MHz

Boost Clock

1000 MHz

1376 MHz

Memory Clock

1500 MHz

Memory

11GB

Memory Size

3GB

GDDR5X

Memory Type

GDDR5

352bit

Memory Bus

384bit

484.4GB/s

Bandwidth

288.0GB/s

Render Config

28

SM Count

-

Compute Units

32

3584

Shading Units

2048

224

TMUs

128

88

ROPs

32

-

Tensor Cores

-

RT Cores

-

48 KB (per SM)

L1 Cache

16 KB (per CU)

0 MB

L2 Cache

768 KB

Theoretical Performance

139.2 GPixel/s

Pixel Rate

32.00 GPixel/s

354.4 GTexel/s

Texture Rate

128.0 GTexel/s

177.2 GFLOPS

FP16 (half)

-

11.34 TFLOPS

FP32 (float)

4.096 TFLOPS

354.4 GFLOPS

FP64 (double)

1024 GFLOPS

Graphics Processor

GP102

GPU Name

Malta

GP102-350-K1-A1

GPU Variant

Malta XT (215-0849026)

Pascal

Architecture

GCN 1.0

TSMC

Foundry

TSMC

16 nm

Process Size

28 nm

11.8 billion

Transistors

4.313 billion

471 mm²

Die Size

365 mm²

Board Design

250W

TDP

375W

600 W

Suggested PSU

750 W

1x HDMI 2.0 3x DisplayPort 1.4a

Outputs

1x DVI 4x mini-DisplayPort 1.2

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Features

12 (12_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

3.0

OpenCL

1.2

1.3

Vulkan

1.2

6.1

CUDA

-

6.4

Shader Model

5.1

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