ATI Radeon HD 4250 vs AMD Radeon HD 6850 X2

VS

ATI Radeon HD 4250

AMD Radeon HD 6850 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4250 and 2GB VRAM Radeon HD 6850 X2 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 254W)

AMD Radeon HD 6850 X2 's Advantages

Released 2 years and 7 months late

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 6.336GB/s)

920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4250

0.048 TFLOPS

Radeon HD 6850 X2 +3100%

1.536 TFLOPS

Radeon HD 4250

VS

Radeon HD 6850 X2

Graphics Card

Feb 2009

Release Date

Sep 2011

Radeon R600

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

396 MHz

Memory Clock

1050 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.336GB/s

Bandwidth

134.4GB/s

Render Config

2

Compute Units

12

-

40

Shading Units

960

4

TMUs

48

4

ROPs

32

-

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

-

Theoretical Performance

2.376 GPixel/s

Pixel Rate

25.60 GPixel/s

2.376 GTexel/s

Texture Rate

38.40 GTexel/s

-

47.52 GFLOPS

FP32 (float)

1.536 TFLOPS

-

Board Design

25W

TDP

254W

200 W

Suggested PSU

600 W

1x DVI 1x VGA 1x S-Video

Outputs

2x DVI 1x HDMI 1.3a 1x DisplayPort 1.1

None

Power Connectors

2x 8-pin

Graphics Processor

RV620

GPU Name

Barts

RV620 LE

GPU Variant

Barts PRO (215-0798006)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.181 billion

Transistors

1.7 billion

67 mm²

Die Size

255 mm²

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

N/A

OpenCL

1.2

N/A

Vulkan

N/A

-

4.1

Shader Model

5.0

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