AMD Radeon Sky 900 vs ATI Radeon HD 4650

VS

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 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 Sky 900 's Advantages

Released 4 years and 6 months late

Boost Clock950MHz

Larger VRAM bandwidth (240.0GB/s vs 22.40GB/s)

1472 additional rendering cores

ATI Radeon HD 4650 's Advantages

Lower TDP (48W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +786%

3.405 TFLOPS

Radeon HD 4650

0.384 TFLOPS

Radeon Sky 900

VS

Radeon HD 4650

Graphics Card

Mar 2013

Release Date

Sep 2008

Radeon Sky

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

700 MHz

Memory

3GB

Memory Size

256MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

240.0GB/s

Bandwidth

22.40GB/s

Render Config

-

SM Count

-

28

Compute Units

4

1792

Shading Units

320

112

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

128 KB

Theoretical Performance

30.40 GPixel/s

Pixel Rate

4.800 GPixel/s

106.4 GTexel/s

Texture Rate

19.20 GTexel/s

-

FP16 (half)

-

3.405 TFLOPS

FP32 (float)

384.0 GFLOPS

851.2 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

RV730

Orthrus

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

Board Design

300W

TDP

48W

700 W

Suggested PSU

200 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

-

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

-

CUDA

-

5.1

Shader Model

4.1

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