AMD Radeon HD 7720 OEM vs ATI Radeon HD 4870 X2

VS

AMD Radeon HD 7720 OEM

ATI Radeon HD 4870 X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7720 OEM and 1024MB VRAM Radeon HD 4870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7720 OEM 's Advantages

Released 4 years and 7 months late

Larger VRAM bandwidth (134.4GB/s vs 115.2GB/s)

Lower TDP (150W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 7720 OEM +12%

1.344 TFLOPS

Radeon HD 4870 X2

1.2 TFLOPS

Radeon HD 7720 OEM

VS

Radeon HD 4870 X2

Graphics Card

Mar 2013

Release Date

Aug 2008

Southern Islands

Generation

Radeon R700

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1050 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

134.4GB/s

Bandwidth

115.2GB/s

Render Config

10

Compute Units

10

-

800

Shading Units

800

40

TMUs

40

32

ROPs

16

-

8 KB (per CU)

L1 Cache

16 KB (per CU)

512 KB

L2 Cache

256 KB

-

Theoretical Performance

26.88 GPixel/s

Pixel Rate

12.00 GPixel/s

33.60 GTexel/s

Texture Rate

30.00 GTexel/s

-

1344 GFLOPS

FP32 (float)

1200 GFLOPS

-

FP64 (double)

240.0 GFLOPS

Board Design

150W

TDP

286W

450 W

Suggested PSU

600 W

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

Outputs

2x DVI 1x S-Video

-

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

Barts

GPU Name

R700

Barts LE (215-0798002)

GPU Variant

R700 XT (215-0669045)

TeraScale 2

Architecture

TeraScale

TSMC

Foundry

TSMC

40 nm

Process Size

55 nm

1.7 billion

Transistors

0.956 billion

255 mm²

Die Size

256 mm²

Graphics Features

11.2 (11_0)

DirectX

10.1 (10_1)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

5.0

Shader Model

4.1

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