AMD Radeon HD 7970 X2 vs NVIDIA GeForce GT 630 Rev. 2 PCIe x8

VS

AMD Radeon HD 7970 X2 NVIDIA GeForce GT 630 Rev. 2 PCIe x8

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7970 X2 and 2GB VRAM GeForce GT 630 Rev. 2 PCIe x8 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 14.40GB/s)

1664 additional rendering cores

NVIDIA GeForce GT 630 Rev. 2 PCIe x8 's Advantages

Released 9 months late

Lower TDP (25W vs 500W)

Score

Benchmark

FP32 (float)

Radeon HD 7970 X2 +446%

3.789 TFLOPS

GeForce GT 630 Rev. 2 PCIe x8

0.693 TFLOPS

Radeon HD 7970 X2

VS

GeForce GT 630 Rev. 2 PCIe x8

Graphics Card

Aug 2012

Release Date

May 2013

Southern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

Base Clock

-

Boost Clock

-

1375 MHz

Memory Clock

900 MHz

Memory

3GB

Memory Size

2GB

GDDR5

Memory Type

DDR3

384bit

Memory Bus

64bit

264.0GB/s

Bandwidth

14.40GB/s

Render Config

-

SM Count

-

32

Compute Units

-

2048

Shading Units

384

128

TMUs

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

768 KB

L2 Cache

512 KB

Theoretical Performance

29.60 GPixel/s

Pixel Rate

7.216 GPixel/s

118.4 GTexel/s

Texture Rate

28.86 GTexel/s

-

FP16 (half)

-

3.789 TFLOPS

FP32 (float)

692.7 GFLOPS

947.2 GFLOPS

FP64 (double)

28.86 GFLOPS

Graphics Processor

New Zealand

GPU Name

GK208

-

GPU Variant

GK208-301-A1

GCN 1.0

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

28 nm

Process Size

28 nm

4.313 billion

Transistors

1.02 billion

352 mm²

Die Size

87 mm²

Board Design

500W

TDP

25W

900 W

Suggested PSU

200 W

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

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

3x 8-pin

Power Connectors

None

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

3.5

5.1

Shader Model

5.1

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