AMD Radeon HD 7790 vs AMD Radeon HD 8470 OEM

VS

AMD Radeon HD 7790

AMD Radeon HD 8470 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 1024MB VRAM Radeon HD 8470 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7790 's Advantages

Larger VRAM bandwidth (96.00GB/s vs 25.60GB/s)

736 additional rendering cores

AMD Radeon HD 8470 OEM 's Advantages

Lower TDP (35W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +622%

1.792 TFLOPS

Radeon HD 8470 OEM

0.248 TFLOPS

Radeon HD 7790

VS

Radeon HD 8470 OEM

Graphics Card

Mar 2013

Release Date

Jan 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

64bit

96.00GB/s

Bandwidth

25.60GB/s

Render Config

14

Compute Units

2

-

896

Shading Units

160

56

TMUs

8

16

ROPs

4

-

16 KB (per CU)

L1 Cache

8 KB (per CU)

256 KB

L2 Cache

128 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

3.100 GPixel/s

56.00 GTexel/s

Texture Rate

6.200 GTexel/s

-

1.792 TFLOPS

FP32 (float)

248.0 GFLOPS

112.0 GFLOPS

FP64 (double)

-

Board Design

85W

TDP

35W

250 W

Suggested PSU

200 W

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a

1x 6-pin

Power Connectors

None

Graphics Processor

Bonaire

GPU Name

Caicos

Bonaire XT (215-0839039)

GPU Variant

Caicos XT (215-0804070)

GCN 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

2.08 billion

Transistors

0.37 billion

160 mm²

Die Size

67 mm²

Graphics Features

12 (12_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

2.0

OpenCL

1.2

Vulkan

N/A

-

6.3

Shader Model

5.0

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