ATI Radeon HD 4250 vs AMD Radeon Sky 900

VS

ATI Radeon HD 4250

AMD Radeon Sky 900

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 3GB VRAM Radeon Sky 900 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4250 's Advantages

Lower TDP (25W vs 300W)

AMD Radeon Sky 900 's Advantages

Released 4 years and 1 months late

Boost Clock950MHz

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (240.0GB/s vs 6.336GB/s)

1752 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon Sky 900 +6993%

3.405 TFLOPS

Radeon HD 4250

VS

Radeon Sky 900

Graphics Card

Feb 2009

Release Date

Mar 2013

Radeon R600

Generation

Radeon Sky

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

825 MHz

-

Boost Clock

950 MHz

396 MHz

Memory Clock

1250 MHz

Memory

512MB

Memory Size

3GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

384bit

6.336GB/s

Bandwidth

240.0GB/s

Render Config

2

Compute Units

28

-

40

Shading Units

1792

4

TMUs

112

4

ROPs

32

-

L1 Cache

16 KB (per CU)

64 KB

L2 Cache

768 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

30.40 GPixel/s

2.376 GTexel/s

Texture Rate

106.4 GTexel/s

-

47.52 GFLOPS

FP32 (float)

3.405 TFLOPS

-

FP64 (double)

851.2 GFLOPS

Board Design

25W

TDP

300W

200 W

Suggested PSU

700 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x mini-DisplayPort 1.2

None

Power Connectors

2x 8-pin

Graphics Processor

RV620

GPU Name

Tahiti

RV620 LE

GPU Variant

Orthrus

TeraScale

Architecture

GCN 1.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.181 billion

Transistors

4.313 billion

67 mm²

Die Size

352 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_1)

3.3

OpenGL

4.6

N/A

OpenCL

1.2

N/A

Vulkan

1.2

-

4.1

Shader Model

5.1

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