AMD Radeon R9 270X vs ATI Radeon HD 3450 X2

VS

AMD Radeon R9 270X

ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 270X and 512MB VRAM Radeon HD 3450 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 270X 's Advantages

Released 5 years and 10 months late

Boost Clock1050MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (179.2GB/s vs 8.000GB/s)

1240 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 180W)

Score

Benchmark

FP32 (float)

Radeon R9 270X +5500%

2.688 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

Radeon R9 270X

VS

Radeon HD 3450 X2

Graphics Card

Oct 2013

Release Date

Dec 2007

Volcanic Islands

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

1000 MHz

Base Clock

-

1050 MHz

Boost Clock

-

1400 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

179.2GB/s

Bandwidth

8.000GB/s

Render Config

20

Compute Units

2

-

1280

Shading Units

40

80

TMUs

4

32

ROPs

4

-

16 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

-

Theoretical Performance

33.60 GPixel/s

Pixel Rate

2.400 GPixel/s

84.00 GTexel/s

Texture Rate

2.400 GTexel/s

-

2.688 TFLOPS

FP32 (float)

48.00 GFLOPS

168.0 GFLOPS

FP64 (double)

-

Board Design

180W

TDP

50W

450 W

Suggested PSU

250 W

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

Outputs

2x DMS-59

2x 6-pin

Power Connectors

None

Graphics Processor

Curacao

GPU Name

RV620

Curacao XT (215-0848004)

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

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

-

5.1

Shader Model

4.1

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