AMD Radeon HD 7790 vs AMD Radeon HD 8740 OEM

VS

AMD Radeon HD 7790

AMD Radeon HD 8740 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 1024MB VRAM Radeon HD 8740 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 72.00GB/s)

384 additional rendering cores

AMD Radeon HD 8740 OEM 's Advantages

Released 6 months late

Lower TDP (55W vs 85W)

Score

Benchmark

FP32 (float)

Radeon HD 7790 +118%

1.792 TFLOPS

Radeon HD 8740 OEM

0.819 TFLOPS

Radeon HD 7790

VS

Radeon HD 8740 OEM

Graphics Card

Mar 2013

Release Date

Sep 2013

Southern Islands

Generation

Sea Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

128bit

96.00GB/s

Bandwidth

72.00GB/s

Render Config

14

Compute Units

8

-

896

Shading Units

512

56

TMUs

32

16

ROPs

16

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

256 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

12.80 GPixel/s

56.00 GTexel/s

Texture Rate

25.60 GTexel/s

-

1.792 TFLOPS

FP32 (float)

819.2 GFLOPS

112.0 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

85W

TDP

55W

250 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

1x 6-pin

Power Connectors

None

Graphics Processor

Bonaire

GPU Name

Cape Verde

Bonaire XT (215-0839039)

GPU Variant

Cape Verde PRO

GCN 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

1.5 billion

160 mm²

Die Size

123 mm²

Graphics Features

12 (12_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

2.0

OpenCL

1.2

Vulkan

1.2

-

6.3

Shader Model

5.1

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