AMD Radeon HD 7950 Monica BIOS 2 vs AMD Radeon R9 390 X2

VS

AMD Radeon HD 7950 Monica BIOS 2

AMD Radeon R9 390 X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 8GB VRAM Radeon R9 390 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7950 Monica BIOS 2 's Advantages

Lower TDP (85W vs 580W)

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)

1792 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7950 Monica BIOS 2

1.229 TFLOPS

Radeon R9 390 X2 +316%

5.12 TFLOPS

Radeon HD 7950 Monica BIOS 2

VS

Radeon R9 390 X2

Graphics Card

Jan 2012

Release Date

Sep 2015

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

1350 MHz

Memory

3GB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

240.0GB/s

Bandwidth

345.6GB/s

Render Config

12

Compute Units

40

-

768

Shading Units

2560

48

TMUs

160

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

25.60 GPixel/s

Pixel Rate

64.00 GPixel/s

38.40 GTexel/s

Texture Rate

160.0 GTexel/s

-

1229 GFLOPS

FP32 (float)

5.120 TFLOPS

307.2 GFLOPS

FP64 (double)

640.0 GFLOPS

Board Design

85W

TDP

580W

250 W

Suggested PSU

950 W

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

Outputs

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

1x 6-pin + 1x 8-pin

Power Connectors

4x 8-pin

Graphics Processor

Tahiti

GPU Name

Grenada

Tahiti PRO (215-0821056)

GPU Variant

Grenada PRO (215-0880030)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

6.2 billion

352 mm²

Die Size

438 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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