AMD Radeon R9 390 X2 vs AMD Radeon HD 7950 Monica BIOS 1

VS

AMD Radeon R9 390 X2 AMD Radeon HD 7950 Monica BIOS 1

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 X2 and 3GB VRAM Radeon HD 7950 Monica BIOS 1 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 X2 's Advantages

Released 3 years and 8 months late

More VRAM (8GB vs 3GB)

Larger VRAM bandwidth (345.6GB/s vs 240.0GB/s)

1024 additional rendering cores

AMD Radeon HD 7950 Monica BIOS 1 's Advantages

Lower TDP (185W vs 580W)

Score

Benchmark

FP32 (float)

Radeon R9 390 X2 +80%

5.12 TFLOPS

Radeon HD 7950 Monica BIOS 1

2.842 TFLOPS

Radeon R9 390 X2

VS

Radeon HD 7950 Monica BIOS 1

Graphics Card

Sep 2015

Release Date

Jan 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1350 MHz

Memory Clock

1250 MHz

Memory

8GB

Memory Size

3GB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

384bit

345.6GB/s

Bandwidth

240.0GB/s

Render Config

-

SM Count

-

40

Compute Units

24

2560

Shading Units

1536

160

TMUs

96

64

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

768 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

29.60 GPixel/s

160.0 GTexel/s

Texture Rate

88.80 GTexel/s

-

FP16 (half)

-

5.120 TFLOPS

FP32 (float)

2.842 TFLOPS

640.0 GFLOPS

FP64 (double)

710.4 GFLOPS

Graphics Processor

Grenada

GPU Name

Tahiti

Grenada PRO (215-0880030)

GPU Variant

Tahiti PRO (215-0821056)

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

6.2 billion

Transistors

4.313 billion

438 mm²

Die Size

352 mm²

Board Design

580W

TDP

185W

950 W

Suggested PSU

450 W

2x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

4x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

CUDA

-

6.3

Shader Model

5.1

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