AMD Radeon R9 390X vs AMD Radeon HD 7670 OEM

VS

AMD Radeon R9 390X

AMD Radeon HD 7670 OEM

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390X and 512MB VRAM Radeon HD 7670 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390X 's Advantages

Released 3 years and 5 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 64.00GB/s)

2336 additional rendering cores

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390X +670%

5.914 TFLOPS

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon R9 390X

VS

Radeon HD 7670 OEM

Graphics Card

Jun 2015

Release Date

Jan 2012

Pirate Islands

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1000 MHz

Memory

8GB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

64.00GB/s

Render Config

44

Compute Units

6

-

2816

Shading Units

480

176

TMUs

24

64

ROPs

8

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

1024 KB

L2 Cache

256 KB

-

Theoretical Performance

67.20 GPixel/s

Pixel Rate

6.400 GPixel/s

184.8 GTexel/s

Texture Rate

19.20 GTexel/s

-

5.914 TFLOPS

FP32 (float)

768.0 GFLOPS

739.2 GFLOPS

FP64 (double)

-

Board Design

275W

TDP

66W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x DisplayPort 1.1 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Grenada

GPU Name

Turks

Grenada XT (215-0880004)

GPU Variant

Turks XT (215-0803000)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

6.2 billion

Transistors

0.716 billion

438 mm²

Die Size

118 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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