AMD Radeon HD 7970 vs NVIDIA GeForce GTX 970

VS

AMD Radeon HD 7970

NVIDIA GeForce GTX 970

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 4GB VRAM GeForce GTX 970 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Larger VRAM bandwidth (264.0GB/s vs 224.4GB/s)

384 additional rendering cores

NVIDIA GeForce GTX 970 's Advantages

Released 2 years and 9 months late

Boost Clock1178MHz

More VRAM (4GB vs 3GB)

Lower TDP (148W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970

3.789 TFLOPS

GeForce GTX 970 +3%

3.92 TFLOPS

3DMark Time Spy

Radeon HD 7970

2279

GeForce GTX 970 +59%

3625

Radeon HD 7970

VS

GeForce GTX 970

Graphics Card

Dec 2011

Release Date

Sep 2014

Southern Islands

Generation

GeForce 900

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1050 MHz

-

Boost Clock

1178 MHz

1375 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

4GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

224.4GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1664

128

TMUs

104

32

ROPs

56

-

16 KB (per CU)

L1 Cache

48 KB (per SMM)

768 KB

L2 Cache

2 MB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

65.97 GPixel/s

118.4 GTexel/s

Texture Rate

122.5 GTexel/s

-

3.789 TFLOPS

FP32 (float)

3.920 TFLOPS

947.2 GFLOPS

FP64 (double)

122.5 GFLOPS

Board Design

250W

TDP

148W

600 W

Suggested PSU

300 W

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

Outputs

1x DVI 1x HDMI 2.0 3x DisplayPort 1.4a

1x 6-pin + 1x 8-pin

Power Connectors

2x 6-pin

Graphics Processor

Tahiti

GPU Name

GM204

Tahiti XT (215-0821060)

GPU Variant

GM204-200-A1

GCN 1.0

Architecture

Maxwell 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

5.2 billion

352 mm²

Die Size

398 mm²

Graphics Features

12 (11_1)

DirectX

12 (12_1)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.3

-

CUDA

5.2

5.1

Shader Model

6.4

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