AMD Radeon HD 7670 OEM vs AMD Radeon R9 390

VS

AMD Radeon HD 7670 OEM

AMD Radeon R9 390

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

Main Differences

AMD Radeon HD 7670 OEM 's Advantages

Lower TDP (66W vs 275W)

AMD Radeon R9 390 's Advantages

Released 3 years and 5 months late

More VRAM (8GB vs 512GB)

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

2080 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7670 OEM

0.768 TFLOPS

Radeon R9 390 +566%

5.12 TFLOPS

Radeon HD 7670 OEM

VS

Radeon R9 390

Graphics Card

Jan 2012

Release Date

Jun 2015

Southern Islands

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1000 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

8GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

64.00GB/s

Bandwidth

384.0GB/s

Render Config

6

Compute Units

40

-

480

Shading Units

2560

24

TMUs

160

8

ROPs

64

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

6.400 GPixel/s

Pixel Rate

64.00 GPixel/s

19.20 GTexel/s

Texture Rate

160.0 GTexel/s

-

768.0 GFLOPS

FP32 (float)

5.120 TFLOPS

-

FP64 (double)

640.0 GFLOPS

Board Design

66W

TDP

275W

250 W

Suggested PSU

600 W

1x DVI 1x DisplayPort 1.1 1x VGA

Outputs

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

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Turks

GPU Name

Grenada

Turks XT (215-0803000)

GPU Variant

Grenada PRO (215-0880030)

TeraScale 2

Architecture

GCN 2.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.716 billion

Transistors

6.2 billion

118 mm²

Die Size

438 mm²

Graphics Features

11.2 (11_0)

DirectX

12 (12_0)

4.4

OpenGL

4.6

1.2

OpenCL

2.0

N/A

Vulkan

1.2

-

5.0

Shader Model

6.3

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