AMD Radeon HD 7970 vs NVIDIA GeForce GTX TITAN Z

VS

AMD Radeon HD 7970

NVIDIA GeForce GTX TITAN Z

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 6GB VRAM GeForce GTX TITAN Z 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 375W)

NVIDIA GeForce GTX TITAN Z 's Advantages

Released 2 years and 5 months late

Boost Clock876MHz

More VRAM (6GB vs 3GB)

Larger VRAM bandwidth (336.0GB/s vs 264.0GB/s)

832 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

GeForce GTX TITAN Z +33%

5.046 TFLOPS

Radeon HD 7970

VS

GeForce GTX TITAN Z

Graphics Card

Dec 2011

Release Date

May 2014

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

705 MHz

-

Boost Clock

876 MHz

1375 MHz

Memory Clock

1750 MHz

Memory

3GB

Memory Size

6GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

384bit

264.0GB/s

Bandwidth

336.0GB/s

Render Config

32

Compute Units

-

2048

Shading Units

2880

128

TMUs

240

32

ROPs

48

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

1536 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

52.56 GPixel/s

118.4 GTexel/s

Texture Rate

210.2 GTexel/s

-

3.789 TFLOPS

FP32 (float)

5.046 TFLOPS

947.2 GFLOPS

FP64 (double)

1.682 TFLOPS

Board Design

250W

TDP

375W

600 W

Suggested PSU

750 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

2x 8-pin

Graphics Processor

Tahiti

GPU Name

GK110B

Tahiti XT (215-0821060)

GPU Variant

GK110-350-B1

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

7.08 billion

352 mm²

Die Size

561 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.5

5.1

Shader Model

5.1

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