ATI Radeon HD 4520 vs AMD Radeon HD 6870

VS

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4520 and 1024MB VRAM Radeon HD 6870 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4520 's Advantages

Lower TDP (25W vs 151W)

AMD Radeon HD 6870 's Advantages

Released 10 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (134.4GB/s vs 6.400GB/s)

1040 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 4520

0.096 TFLOPS

Radeon HD 6870 +2000%

2.016 TFLOPS

Radeon HD 4520

VS

Radeon HD 6870

Graphics Card

Dec 2009

Release Date

Oct 2010

Radeon R700

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

400 MHz

Memory Clock

1050 MHz

Memory

512MB

Memory Size

1024MB

DDR2

Memory Type

GDDR5

64bit

Memory Bus

256bit

6.400GB/s

Bandwidth

134.4GB/s

Render Config

-

SM Count

-

1

Compute Units

14

80

Shading Units

1120

8

TMUs

56

4

ROPs

32

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

64 KB

L2 Cache

512 KB

Theoretical Performance

2.400 GPixel/s

Pixel Rate

28.80 GPixel/s

4.800 GTexel/s

Texture Rate

50.40 GTexel/s

-

FP16 (half)

-

96.00 GFLOPS

FP32 (float)

2.016 TFLOPS

-

FP64 (double)

-

Graphics Processor

RV710

GPU Name

Barts

RV710 (215-0725016)

GPU Variant

Barts XT (215-0798000)

TeraScale

Architecture

TeraScale 2

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.242 billion

Transistors

1.7 billion

73 mm²

Die Size

255 mm²

Board Design

25W

TDP

151W

200 W

Suggested PSU

450 W

1x DVI 1x HDMI 1.3a 1x DisplayPort 1.0

Outputs

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

None

Power Connectors

2x 6-pin

Graphics Features

10.1 (10_1)

DirectX

11.2 (11_0)

3.3

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

-

CUDA

-

4.1

Shader Model

5.0

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