AMD Radeon R9 390 vs ATI Radeon HD 4650

VS

We compared two Desktop platform GPUs: 8GB VRAM Radeon R9 390 and 256MB VRAM Radeon HD 4650 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 390 's Advantages

Released 6 years and 9 months late

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

2240 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 275W)

Score

Benchmark

FP32 (float)

Radeon R9 390 +1233%

5.12 TFLOPS

Radeon HD 4650

0.384 TFLOPS

Radeon R9 390

VS

Radeon HD 4650

Graphics Card

Jun 2015

Release Date

Sep 2008

Pirate Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1500 MHz

Memory Clock

700 MHz

Memory

8GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

512bit

Memory Bus

128bit

384.0GB/s

Bandwidth

22.40GB/s

Render Config

-

SM Count

-

40

Compute Units

4

2560

Shading Units

320

160

TMUs

32

64

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

1024 KB

L2 Cache

128 KB

Theoretical Performance

64.00 GPixel/s

Pixel Rate

4.800 GPixel/s

160.0 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

5.120 TFLOPS

FP32 (float)

384.0 GFLOPS

640.0 GFLOPS

FP64 (double)

-

Graphics Processor

Grenada

GPU Name

RV730

Grenada PRO (215-0880030)

GPU Variant

RV730 PRO (215-0719056)

GCN 2.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

6.2 billion

Transistors

0.514 billion

438 mm²

Die Size

146 mm²

Board Design

275W

TDP

48W

600 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

-

Graphics Features

12 (12_0)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

2.0

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

-

6.3

Shader Model

4.1

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