AMD Radeon HD 7990 vs AMD Radeon R9 FURY X

VS

AMD Radeon HD 7990

AMD Radeon R9 FURY X

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 4GB VRAM Radeon R9 FURY X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Boost Clock1000MHz

AMD Radeon R9 FURY X 's Advantages

Released 2 years and 2 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (512.0GB/s vs 288.0GB/s)

2048 additional rendering cores

Lower TDP (275W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990

4.096 TFLOPS

Radeon R9 FURY X +110%

8.602 TFLOPS

Radeon HD 7990

VS

Radeon R9 FURY X

Graphics Card

Apr 2013

Release Date

Jun 2015

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

HBM

384bit

Memory Bus

4096bit

288.0GB/s

Bandwidth

512.0GB/s

Render Config

32

Compute Units

64

-

2048

Shading Units

4096

128

TMUs

256

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

67.20 GPixel/s

128.0 GTexel/s

Texture Rate

268.8 GTexel/s

-

FP16 (half)

8.602 TFLOPS

4.096 TFLOPS

FP32 (float)

8.602 TFLOPS

1024 GFLOPS

FP64 (double)

537.6 GFLOPS

Board Design

375W

TDP

275W

750 W

Suggested PSU

600 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x HDMI 1.4a 3x DisplayPort 1.2

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

Malta

GPU Name

Fiji

Malta XT (215-0849026)

GPU Variant

Fiji XT C8 (215-0862040)

GCN 1.0

Architecture

GCN 3.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

8.9 billion

365 mm²

Die Size

596 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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