ATI Radeon HD 4650 vs AMD Radeon HD 6390

VS

We compared two Desktop platform GPUs: 256MB VRAM Radeon HD 4650 and 1024MB VRAM Radeon HD 6390 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4650 's Advantages

Larger VRAM bandwidth (22.40GB/s vs 16.00GB/s)

AMD Radeon HD 6390 's Advantages

Released 2 years and 10 months late

More VRAM (1024GB vs 256GB)

Lower TDP (39W vs 48W)

Score

Benchmark

FP32 (float)

Radeon HD 4650 +9%

0.384 TFLOPS

Radeon HD 6390

0.352 TFLOPS

Radeon HD 4650

VS

Radeon HD 6390

Graphics Card

Sep 2008

Release Date

Jul 2011

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

700 MHz

Memory Clock

500 MHz

Memory

256MB

Memory Size

1024MB

GDDR3

Memory Type

DDR2

128bit

Memory Bus

128bit

22.40GB/s

Bandwidth

16.00GB/s

Render Config

-

SM Count

-

4

Compute Units

4

320

Shading Units

320

32

TMUs

16

8

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

128 KB

L2 Cache

256 KB

Theoretical Performance

4.800 GPixel/s

Pixel Rate

4.400 GPixel/s

19.20 GTexel/s

Texture Rate

8.800 GTexel/s

-

FP16 (half)

-

384.0 GFLOPS

FP32 (float)

352.0 GFLOPS

-

FP64 (double)

-

Graphics Processor

RV730

GPU Name

Redwood

RV730 PRO (215-0719056)

GPU Variant

Redwood LE

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.514 billion

Transistors

0.627 billion

146 mm²

Die Size

104 mm²

Board Design

48W

TDP

39W

200 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

-

Power Connectors

None

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

5.0

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