AMD Radeon HD 7970 vs NVIDIA GeForce GT 545

VS

AMD Radeon HD 7970

NVIDIA GeForce GT 545

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1536MB VRAM GeForce GT 545 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 7 months late

More VRAM (3GB vs 1536GB)

Larger VRAM bandwidth (264.0GB/s vs 38.40GB/s)

1904 additional rendering cores

NVIDIA GeForce GT 545 's Advantages

Lower TDP (70W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +813%

3.789 TFLOPS

GeForce GT 545

0.415 TFLOPS

Radeon HD 7970

VS

GeForce GT 545

Graphics Card

Dec 2011

Release Date

May 2011

Southern Islands

Generation

GeForce 500

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1375 MHz

Memory Clock

800 MHz

Memory

3GB

Memory Size

1536MB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

192bit

264.0GB/s

Bandwidth

38.40GB/s

Render Config

32

Compute Units

-

SM Count

3

2048

Shading Units

144

128

TMUs

24

32

ROPs

16

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

384 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

4.320 GPixel/s

118.4 GTexel/s

Texture Rate

17.28 GTexel/s

-

3.789 TFLOPS

FP32 (float)

414.7 GFLOPS

947.2 GFLOPS

FP64 (double)

34.56 GFLOPS

Board Design

250W

TDP

70W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

GF116

Tahiti XT (215-0821060)

GPU Variant

-

GCN 1.0

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

40 nm

4.313 billion

Transistors

1.17 billion

352 mm²

Die Size

238 mm²

Graphics Features

12 (11_1)

DirectX

12 (11_0)

4.6

OpenGL

4.6

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

2.1

5.1

Shader Model

5.1

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