AMD Radeon HD 6450 vs ATI Radeon HD 4850

VS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 6450 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 6450 's Advantages

Released 2 years and 10 months late

Lower TDP (18W vs 110W)

ATI Radeon HD 4850 's Advantages

Larger VRAM bandwidth (63.55GB/s vs 25.60GB/s)

640 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 6450

0.2 TFLOPS

Radeon HD 4850 +400%

1 TFLOPS

Radeon HD 6450

VS

Radeon HD 4850

Graphics Card

Apr 2011

Release Date

Jun 2008

Northern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

800 MHz

Memory Clock

993 MHz

Memory

512MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

64bit

Memory Bus

256bit

25.60GB/s

Bandwidth

63.55GB/s

Render Config

-

SM Count

-

2

Compute Units

10

160

Shading Units

800

8

TMUs

40

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

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

-

FP16 (half)

-

200.0 GFLOPS

FP32 (float)

1000 GFLOPS

-

FP64 (double)

200.0 GFLOPS

Graphics Processor

Caicos

GPU Name

RV770

Caicos PRO

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

Board Design

18W

TDP

110W

200 W

Suggested PSU

300 W

1x DVI 1x HDMI 1.3a 1x VGA

Outputs

2x DVI 1x S-Video

None

Power Connectors

1x 6-pin

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

-

CUDA

-

5.0

Shader Model

4.1

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