AMD Radeon HD 7970 X2 vs NVIDIA GeForce GTX 770

VS

AMD Radeon HD 7970 X2

NVIDIA GeForce GTX 770

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 2GB VRAM GeForce GTX 770 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 X2 's Advantages

More VRAM (3GB vs 2GB)

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

512 additional rendering cores

NVIDIA GeForce GTX 770 's Advantages

Released 9 months late

Boost Clock1085MHz

Lower TDP (230W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +13%

3.789 TFLOPS

GeForce GTX 770

3.333 TFLOPS

Radeon HD 7970 X2

VS

GeForce GTX 770

Graphics Card

Aug 2012

Release Date

May 2013

Southern Islands

Generation

GeForce 700

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

1046 MHz

-

Boost Clock

1085 MHz

1375 MHz

Memory Clock

1753 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

264.0GB/s

Bandwidth

224.4GB/s

Render Config

32

Compute Units

-

2048

Shading Units

1536

128

TMUs

128

32

ROPs

32

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

512 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

34.72 GPixel/s

118.4 GTexel/s

Texture Rate

138.9 GTexel/s

-

3.789 TFLOPS

FP32 (float)

3.333 TFLOPS

947.2 GFLOPS

FP64 (double)

138.9 GFLOPS

Board Design

500W

TDP

230W

900 W

Suggested PSU

550 W

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

Outputs

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

3x 8-pin

Power Connectors

1x 6-pin + 1x 8-pin

Graphics Processor

New Zealand

GPU Name

GK104

-

GPU Variant

GK104-425-A2

GCN 1.0

Architecture

Kepler

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

3.54 billion

352 mm²

Die Size

294 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

3.0

1.2

Vulkan

1.1

-

CUDA

3.0

5.1

Shader Model

5.1

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