AMD Radeon HD 7790 vs AMD Radeon R9 290X2

VS

AMD Radeon HD 7790

AMD Radeon R9 290X2

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 7790 and 4GB VRAM Radeon R9 290X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7790 's Advantages

Lower TDP (85W vs 580W)

AMD Radeon R9 290X2 's Advantages

Released 1 years and 3 months late

More VRAM (4GB vs 1024GB)

Larger VRAM bandwidth (345.6GB/s vs 96.00GB/s)

1920 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7790

1.792 TFLOPS

Radeon R9 290X2 +214%

5.632 TFLOPS

Radeon HD 7790

VS

Radeon R9 290X2

Graphics Card

Mar 2013

Release Date

Jun 2014

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1500 MHz

Memory Clock

1350 MHz

Memory

1024MB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

128bit

Memory Bus

512bit

96.00GB/s

Bandwidth

345.6GB/s

Render Config

14

Compute Units

44

-

896

Shading Units

2816

56

TMUs

176

16

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

256 KB

L2 Cache

1024 KB

-

Theoretical Performance

16.00 GPixel/s

Pixel Rate

64.00 GPixel/s

56.00 GTexel/s

Texture Rate

176.0 GTexel/s

-

1.792 TFLOPS

FP32 (float)

5.632 TFLOPS

112.0 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

85W

TDP

580W

250 W

Suggested PSU

950 W

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

Outputs

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

1x 6-pin

Power Connectors

4x 8-pin

Graphics Processor

Bonaire

GPU Name

Hawaii

Bonaire XT (215-0839039)

GPU Variant

Hawaii XT (215-0852000)

GCN 2.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

2.08 billion

Transistors

6.2 billion

160 mm²

Die Size

438 mm²

Graphics Features

12 (12_0)

DirectX

12 (12_0)

4.6

OpenGL

4.6

2.0

OpenCL

2.0

1.2

Vulkan

1.2

-

6.3

Shader Model

6.3

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