AMD Radeon R9 270 vs ATI Radeon HD 4650

VS

AMD Radeon R9 270

ATI Radeon HD 4650

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270 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 270 's Advantages

Released 5 years and 2 months late

Boost Clock925MHz

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (179.2GB/s vs 22.40GB/s)

960 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 150W)

Score

Benchmark

FP32 (float)

Radeon R9 270 +516%

2.368 TFLOPS

Radeon HD 4650

0.384 TFLOPS

Radeon R9 270

VS

Radeon HD 4650

Graphics Card

Nov 2013

Release Date

Sep 2008

Volcanic Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

900 MHz

Base Clock

-

925 MHz

Boost Clock

-

1400 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

179.2GB/s

Bandwidth

22.40GB/s

Render Config

20

Compute Units

4

-

1280

Shading Units

320

80

TMUs

32

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

4.800 GPixel/s

74.00 GTexel/s

Texture Rate

19.20 GTexel/s

-

2.368 TFLOPS

FP32 (float)

384.0 GFLOPS

148.0 GFLOPS

FP64 (double)

-

Board Design

150W

TDP

48W

450 W

Suggested PSU

200 W

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

Outputs

2x DVI 1x S-Video

1x 6-pin

Power Connectors

-

Graphics Processor

Curacao

GPU Name

RV730

Curacao PRO (215-0848000)

GPU Variant

RV730 PRO (215-0719056)

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.514 billion

212 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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