AMD Radeon HD 7970 vs NVIDIA GeForce GTS 450 Rev. 2

VS

AMD Radeon HD 7970 NVIDIA GeForce GTS 450 Rev. 2

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 1024MB VRAM GeForce GTS 450 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 9 months late

More VRAM (3GB vs 1GB)

Larger VRAM bandwidth (264.0GB/s vs 57.73GB/s)

1856 additional rendering cores

NVIDIA GeForce GTS 450 Rev. 2 's Advantages

Lower TDP (106W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +530%

3.789 TFLOPS

GeForce GTS 450 Rev. 2

0.601 TFLOPS

Radeon HD 7970

VS

GeForce GTS 450 Rev. 2

Graphics Card

Dec 2011

Release Date

Mar 2011

Southern Islands

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

902 MHz

Memory

3GB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

57.73GB/s

Render Config

-

SM Count

4

32

Compute Units

-

2048

Shading Units

192

128

TMUs

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

768 KB

L2 Cache

256 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

6.264 GPixel/s

118.4 GTexel/s

Texture Rate

25.06 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

601.3 GFLOPS

947.2 GFLOPS

FP64 (double)

50.11 GFLOPS

Graphics Processor

Tahiti

GPU Name

GF116

Tahiti XT (215-0821060)

GPU Variant

GF116-200-KA-A1

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

Board Design

250W

TDP

106W

600 W

Suggested PSU

300 W

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

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

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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