AMD Radeon HD 7970 X2 vs AMD Radeon R9 295X2

VS

AMD Radeon HD 7970 X2

AMD Radeon R9 295X2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 4GB VRAM Radeon R9 295X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon R9 295X2 's Advantages

Released 1 years and 8 months late

More VRAM (4GB vs 3GB)

Larger VRAM bandwidth (320.0GB/s vs 264.0GB/s)

768 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2

3.789 TFLOPS

Radeon R9 295X2 +51%

5.733 TFLOPS

Radeon HD 7970 X2

VS

Radeon R9 295X2

Graphics Card

Aug 2012

Release Date

Apr 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

1250 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

512bit

264.0GB/s

Bandwidth

320.0GB/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

65.15 GPixel/s

118.4 GTexel/s

Texture Rate

179.2 GTexel/s

-

3.789 TFLOPS

FP32 (float)

5.733 TFLOPS

947.2 GFLOPS

FP64 (double)

716.7 GFLOPS

Board Design

500W

TDP

500W

900 W

Suggested PSU

900 W

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

Outputs

1x DVI 4x mini-DisplayPort 1.2

3x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

New Zealand

GPU Name

Vesuvius

-

GPU Variant

Vesuvius XT (215-0852022)

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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