AMD Radeon HD 7970 vs AMD Radeon R9 290X2

VS

AMD Radeon HD 7970

AMD Radeon R9 290X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 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 7970 's Advantages

Lower TDP (250W vs 580W)

AMD Radeon R9 290X2 's Advantages

Released 2 years and 6 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (345.6GB/s vs 264.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

Radeon R9 290X2 +48%

5.632 TFLOPS

Radeon HD 7970

VS

Radeon R9 290X2

Graphics Card

Dec 2011

Release Date

Jun 2014

Southern Islands

Generation

Volcanic Islands

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

1350 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

264.0GB/s

Bandwidth

345.6GB/s

Render Config

32

Compute Units

44

-

2048

Shading Units

2816

128

TMUs

176

32

ROPs

64

-

16 KB (per CU)

L1 Cache

16 KB (per CU)

768 KB

L2 Cache

1024 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

64.00 GPixel/s

118.4 GTexel/s

Texture Rate

176.0 GTexel/s

-

3.789 TFLOPS

FP32 (float)

5.632 TFLOPS

947.2 GFLOPS

FP64 (double)

704.0 GFLOPS

Board Design

250W

TDP

580W

600 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 + 1x 8-pin

Power Connectors

4x 8-pin

Graphics Processor

Tahiti

GPU Name

Hawaii

Tahiti XT (215-0821060)

GPU Variant

Hawaii XT (215-0852000)

GCN 1.0

Architecture

GCN 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

6.2 billion

352 mm²

Die Size

438 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_0)

4.6

OpenGL

4.6

1.2

OpenCL

2.0

1.2

Vulkan

1.2

-

5.1

Shader Model

6.3

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