ATI Radeon HD 4670 X2 vs AMD Radeon R9 390X

VS

ATI Radeon HD 4670 X2

AMD Radeon R9 390X

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4670 X2 and 8GB VRAM Radeon R9 390X to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4670 X2 's Advantages

Lower TDP (118W vs 275W)

AMD Radeon R9 390X 's Advantages

Released 6 years and 9 months late

More VRAM (8GB vs 512GB)

Larger VRAM bandwidth (384.0GB/s vs 22.40GB/s)

2496 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4670 X2

0.48 TFLOPS

Radeon R9 390X +1132%

5.914 TFLOPS

Radeon HD 4670 X2

VS

Radeon R9 390X

Graphics Card

Sep 2008

Release Date

Jun 2015

Radeon R700

Generation

Pirate Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

700 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

8GB

GDDR3

Memory Type

GDDR5

128bit

Memory Bus

512bit

22.40GB/s

Bandwidth

384.0GB/s

Render Config

4

Compute Units

44

-

320

Shading Units

2816

32

TMUs

176

8

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

1024 KB

-

Theoretical Performance

6.000 GPixel/s

Pixel Rate

67.20 GPixel/s

24.00 GTexel/s

Texture Rate

184.8 GTexel/s

-

480.0 GFLOPS

FP32 (float)

5.914 TFLOPS

-

FP64 (double)

739.2 GFLOPS

Board Design

118W

TDP

275W

300 W

Suggested PSU

600 W

4x DVI

Outputs

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

1x 6-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV730

GPU Name

Grenada

RV730 XT (215-0719047)

GPU Variant

Grenada XT (215-0880004)

TeraScale

Architecture

GCN 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.514 billion

Transistors

6.2 billion

146 mm²

Die Size

438 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (12_0)

3.3

OpenGL

4.6

1.1

OpenCL

2.0

N/A

Vulkan

1.2

-

4.1

Shader Model

6.3

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