AMD Radeon HD 7450 OEM vs ATI Radeon HD 4850

VS

AMD Radeon HD 7450 OEM

ATI Radeon HD 4850

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 7450 OEM and 512MB VRAM Radeon HD 4850 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7450 OEM 's Advantages

Released 3 years and 7 months late

Lower TDP (18W vs 110W)

ATI Radeon HD 4850 's Advantages

Larger VRAM bandwidth (63.55GB/s vs 8.528GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7450 OEM

0.2 TFLOPS

Radeon HD 4850 +400%

1 TFLOPS

Radeon HD 7450 OEM

VS

Radeon HD 4850

Graphics Card

Jan 2012

Release Date

Jun 2008

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

533 MHz

Memory Clock

993 MHz

Memory

512MB

Memory Size

512MB

GDDR3

Memory Type

GDDR3

64bit

Memory Bus

256bit

8.528GB/s

Bandwidth

63.55GB/s

Render Config

2

Compute Units

10

-

160

Shading Units

800

8

TMUs

40

4

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

128 KB

L2 Cache

256 KB

-

Theoretical Performance

2.500 GPixel/s

Pixel Rate

10.00 GPixel/s

5.000 GTexel/s

Texture Rate

25.00 GTexel/s

-

200.0 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Board Design

18W

TDP

110W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

Graphics Processor

Caicos

GPU Name

RV770

Caimour

GPU Variant

RV770 PRO (215-0669065)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

0.37 billion

Transistors

0.956 billion

67 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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