AMD Radeon HD 6790 vs AMD Radeon HD 7470 OEM

VS

AMD Radeon HD 6790

AMD Radeon HD 7470 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 6790 and 1024MB VRAM Radeon HD 7470 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6790 's Advantages

Larger VRAM bandwidth (134.4GB/s vs 28.80GB/s)

640 additional rendering cores

AMD Radeon HD 7470 OEM 's Advantages

Released 9 months late

Lower TDP (27W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 6790 +460%

1.344 TFLOPS

Radeon HD 7470 OEM

0.24 TFLOPS

Radeon HD 6790

VS

Radeon HD 7470 OEM

Graphics Card

Apr 2011

Release Date

Jan 2012

Northern Islands

Generation

Southern Islands

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

64bit

134.4GB/s

Bandwidth

28.80GB/s

Render Config

10

Compute Units

2

-

800

Shading Units

160

40

TMUs

8

16

ROPs

4

-

8 KB (per CU)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

128 KB

-

Theoretical Performance

13.44 GPixel/s

Pixel Rate

3.000 GPixel/s

33.60 GTexel/s

Texture Rate

6.000 GTexel/s

-

1344 GFLOPS

FP32 (float)

240.0 GFLOPS

-

Board Design

150W

TDP

27W

450 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x DisplayPort 1.1

2x 6-pin

Power Connectors

None

Graphics Processor

Barts

GPU Name

Caicos

Barts LE (215-0798002)

GPU Variant

Khalidster

TeraScale 2

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.7 billion

Transistors

0.37 billion

255 mm²

Die Size

67 mm²

Graphics Features

11.2 (11_0)

DirectX

11.2 (11_0)

4.4

OpenGL

4.4

1.2

OpenCL

1.2

N/A

Vulkan

N/A

-

5.0

Shader Model

5.0

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