AMD Radeon R9 280X2 vs ATI Radeon HD 4650

VS

AMD Radeon R9 280X2

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 3GB VRAM Radeon R9 280X2 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 280X2 's Advantages

Boost Clock1000MHz

More VRAM (3GB vs 256GB)

Larger VRAM bandwidth (288.0GB/s vs 22.40GB/s)

1728 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 375W)

Score

Benchmark

FP32 (float)

Radeon R9 280X2 +966%

4.096 TFLOPS

Radeon HD 4650

0.384 TFLOPS

Radeon R9 280X2

VS

Radeon HD 4650

Graphics Card

Unknown

Release Date

Sep 2008

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

700 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

22.40GB/s

Render Config

32

Compute Units

4

-

2048

Shading Units

320

128

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

-

Theoretical Performance

32.00 GPixel/s

Pixel Rate

4.800 GPixel/s

128.0 GTexel/s

Texture Rate

19.20 GTexel/s

-

4.096 TFLOPS

FP32 (float)

384.0 GFLOPS

1024 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

48W

750 W

Suggested PSU

200 W

6x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

3x 8-pin

Power Connectors

-

Graphics Processor

Tahiti

GPU Name

RV730

Tahiti XTL (215-0821065)

GPU Variant

RV730 PRO (215-0719056)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.514 billion

352 mm²

Die Size

146 mm²

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

5.1

Shader Model

4.1

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