AMD Radeon HD 7850 vs ATI Radeon HD 3450

VS

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 7850 and 256MB VRAM Radeon HD 3450 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7850 's Advantages

Released 4 years and 3 months late

Larger VRAM bandwidth (153.6GB/s vs 8.000GB/s)

984 additional rendering cores

ATI Radeon HD 3450 's Advantages

Lower TDP (25W vs 130W)

Score

Benchmark

FP32 (float)

Radeon HD 7850 +3568%

1.761 TFLOPS

Radeon HD 3450

0.048 TFLOPS

Radeon HD 7850

VS

Radeon HD 3450

Graphics Card

Mar 2012

Release Date

Dec 2007

Southern Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1200 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

153.6GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

16

Compute Units

2

1024

Shading Units

40

64

TMUs

4

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

Theoretical Performance

27.52 GPixel/s

Pixel Rate

2.400 GPixel/s

55.04 GTexel/s

Texture Rate

2.400 GTexel/s

-

FP16 (half)

-

1.761 TFLOPS

FP32 (float)

48.00 GFLOPS

110.1 GFLOPS

FP64 (double)

-

Graphics Processor

Pitcairn

GPU Name

RV620

Pitcairn PRO (215-0828062)

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

2.8 billion

Transistors

0.181 billion

212 mm²

Die Size

67 mm²

Board Design

130W

TDP

25W

300 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

1x 6-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

10.1 (10_1)

4.6

OpenGL

3.3

1.2

OpenCL

N/A

1.2

Vulkan

N/A

-

CUDA

-

5.1

Shader Model

4.1

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