ATI Radeon HD 4450 vs ATI Radeon HD 4850 X2

VS

ATI Radeon HD 4450

ATI Radeon HD 4850 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4450 and 512MB VRAM Radeon HD 4850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4450 's Advantages

Released 3 years late

Lower TDP (25W vs 250W)

ATI Radeon HD 4850 X2 's Advantages

Larger VRAM bandwidth (63.68GB/s vs 6.400GB/s)

720 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4450

0.096 TFLOPS

Radeon HD 4850 X2 +941%

1 TFLOPS

Radeon HD 4450

VS

Radeon HD 4850 X2

Graphics Card

Nov 2011

Release Date

Nov 2008

Radeon R700

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

400 MHz

Memory Clock

995 MHz

Memory

512MB

Memory Size

512MB

DDR2

Memory Type

GDDR3

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

63.68GB/s

Render Config

1

Compute Units

10

-

80

Shading Units

800

8

TMUs

40

4

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

256 KB

-

Theoretical Performance

2.400 GPixel/s

Pixel Rate

10.00 GPixel/s

4.800 GTexel/s

Texture Rate

25.00 GTexel/s

-

96.00 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Board Design

25W

TDP

250W

200 W

Suggested PSU

600 W

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

Outputs

4x DVI 1x S-Video

None

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

RV710

GPU Name

R700

RV710 (215-0725016)

GPU Variant

R700 PRO (215-0669065)

TeraScale

Architecture

TeraScale

TSMC

Foundry

TSMC

55 nm

Process Size

55 nm

0.242 billion

Transistors

0.956 billion

73 mm²

Die Size

256 mm²

Graphics Features

10.1 (10_1)

DirectX

10.1 (10_1)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

4.1

Shader Model

4.1

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