AMD Radeon Sky 900 vs ATI Radeon HD 3450 X2

VS

AMD Radeon Sky 900 ATI Radeon HD 3450 X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon Sky 900 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 Sky 900 's Advantages

Released 5 years and 3 months late

Boost Clock950MHz

Larger VRAM bandwidth (240.0GB/s vs 8.000GB/s)

1752 additional rendering cores

ATI Radeon HD 3450 X2 's Advantages

Lower TDP (50W vs 300W)

Score

Benchmark

FP32 (float)

Radeon Sky 900 +6993%

3.405 TFLOPS

Radeon HD 3450 X2

0.048 TFLOPS

Radeon Sky 900

VS

Radeon HD 3450 X2

Graphics Card

Mar 2013

Release Date

Dec 2007

Radeon Sky

Generation

Radeon R600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

825 MHz

Base Clock

-

950 MHz

Boost Clock

-

1250 MHz

Memory Clock

500 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

64bit

240.0GB/s

Bandwidth

8.000GB/s

Render Config

-

SM Count

-

28

Compute Units

2

1792

Shading Units

40

112

TMUs

4

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

64 KB

Theoretical Performance

30.40 GPixel/s

Pixel Rate

2.400 GPixel/s

106.4 GTexel/s

Texture Rate

2.400 GTexel/s

-

FP16 (half)

-

3.405 TFLOPS

FP32 (float)

48.00 GFLOPS

851.2 GFLOPS

FP64 (double)

-

Graphics Processor

Tahiti

GPU Name

RV620

Orthrus

GPU Variant

RV620 LE

GCN 1.0

Architecture

TeraScale

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.181 billion

352 mm²

Die Size

67 mm²

Board Design

300W

TDP

50W

700 W

Suggested PSU

250 W

1x DVI 1x mini-DisplayPort 1.2

Outputs

2x DMS-59

2x 8-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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