AMD Radeon HD 7970 vs NVIDIA GeForce GT 120 Mac Edition

VS

AMD Radeon HD 7970

NVIDIA GeForce GT 120 Mac Edition

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 and 512MB VRAM GeForce GT 120 Mac Edition to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7970 's Advantages

Released 2 years and 11 months late

More VRAM (3GB vs 512GB)

Larger VRAM bandwidth (264.0GB/s vs 25.60GB/s)

2016 additional rendering cores

NVIDIA GeForce GT 120 Mac Edition 's Advantages

Lower TDP (50W vs 250W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 +4110%

3.789 TFLOPS

GeForce GT 120 Mac Edition

0.09 TFLOPS

Radeon HD 7970

VS

GeForce GT 120 Mac Edition

Graphics Card

Dec 2011

Release Date

Jan 2009

Southern Islands

Generation

GeForce 100

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

512MB

GDDR5

Memory Type

GDDR3

384bit

Memory Bus

128bit

264.0GB/s

Bandwidth

25.60GB/s

Render Config

32

Compute Units

-

SM Count

4

2048

Shading Units

32

128

TMUs

16

32

ROPs

8

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

32 KB

-

Theoretical Performance

29.60 GPixel/s

Pixel Rate

4.400 GPixel/s

118.4 GTexel/s

Texture Rate

8.800 GTexel/s

-

3.789 TFLOPS

FP32 (float)

89.60 GFLOPS

947.2 GFLOPS

FP64 (double)

-

Board Design

250W

TDP

50W

600 W

Suggested PSU

250 W

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

Outputs

1x DVI 1x mini-DisplayPort

1x 6-pin + 1x 8-pin

Power Connectors

None

Graphics Processor

Tahiti

GPU Name

G96C

Tahiti XT (215-0821060)

GPU Variant

-

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

55 nm

4.313 billion

Transistors

0.314 billion

352 mm²

Die Size

121 mm²

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

5.1

Shader Model

4.0

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