AMD Radeon R9 255 OEM vs ATI Radeon HD 3450 X2

VS

AMD Radeon R9 255 OEM

ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 2GB VRAM Radeon R9 255 OEM 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 255 OEM 's Advantages

Released 6 years late

Boost Clock930MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (73.60GB/s vs 8.000GB/s)

472 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 65W)

Score

Benchmark

FP32 (float)

Radeon R9 255 OEM +1883%

0.952 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

Radeon R9 255 OEM

VS

Radeon HD 3450 X2

Graphics Card

Dec 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

900 MHz

Base Clock

-

930 MHz

Boost Clock

-

1150 MHz

Memory Clock

500 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

128bit

Memory Bus

64bit

73.60GB/s

Bandwidth

8.000GB/s

Render Config

8

Compute Units

2

-

512

Shading Units

40

32

TMUs

4

16

ROPs

4

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

-

Theoretical Performance

14.88 GPixel/s

Pixel Rate

2.400 GPixel/s

29.76 GTexel/s

Texture Rate

2.400 GTexel/s

-

952.3 GFLOPS

FP32 (float)

48.00 GFLOPS

59.52 GFLOPS

FP64 (double)

-

Board Design

65W

TDP

50W

250 W

Suggested PSU

250 W

No outputs

Outputs

2x DMS-59

1x 6-pin

Power Connectors

None

Graphics Processor

Cape Verde

GPU Name

RV620

Cape Verde PRX

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

1.5 billion

Transistors

0.181 billion

123 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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