ATI Radeon HD 4250 vs AMD Radeon HD 6450

VS

ATI Radeon HD 4250

AMD Radeon HD 6450

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 512MB VRAM Radeon HD 6450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6450 's Advantages

Released 2 years and 2 months late

Larger VRAM bandwidth (25.60GB/s vs 6.336GB/s)

120 additional rendering cores

Lower TDP (18W vs 25W)

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon HD 6450 +316%

0.2 TFLOPS

Radeon HD 4250

VS

Radeon HD 6450

Graphics Card

Feb 2009

Release Date

Apr 2011

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

396 MHz

Memory Clock

800 MHz

Memory

512MB

Memory Size

512MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

64bit

6.336GB/s

Bandwidth

25.60GB/s

Render Config

2

Compute Units

2

-

40

Shading Units

160

4

TMUs

8

4

ROPs

4

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

128 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

2.500 GPixel/s

2.376 GTexel/s

Texture Rate

5.000 GTexel/s

-

47.52 GFLOPS

FP32 (float)

200.0 GFLOPS

-

Board Design

25W

TDP

18W

200 W

Suggested PSU

200 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

None

Power Connectors

None

Graphics Processor

RV620

GPU Name

Caicos

RV620 LE

GPU Variant

Caicos PRO

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.181 billion

Transistors

0.37 billion

67 mm²

Die Size

67 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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