AMD Radeon HD 6990 vs NVIDIA GeForce GT 630

VS

AMD Radeon HD 6990 NVIDIA GeForce GT 630

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 1024MB VRAM GeForce GT 630 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1GB)

Larger VRAM bandwidth (160.0GB/s vs 28.80GB/s)

1440 additional rendering cores

NVIDIA GeForce GT 630 's Advantages

Released 1 years and 2 months late

Lower TDP (65W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +719%

2.55 TFLOPS

GeForce GT 630

0.311 TFLOPS

Radeon HD 6990

VS

GeForce GT 630

Graphics Card

Mar 2011

Release Date

May 2012

Northern Islands

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

900 MHz

Memory

2GB

Memory Size

1024MB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

2

24

Compute Units

-

1536

Shading Units

96

TMUs

16

32

ROPs

4

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

64 KB (per SM)

512 KB

L2 Cache

256 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

3.240 GPixel/s

79.68 GTexel/s

Texture Rate

12.96 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

311.0 GFLOPS

637.4 GFLOPS

FP64 (double)

25.92 GFLOPS

Graphics Processor

Antilles

GPU Name

GF108

Antilles XT (215-0807027)

GPU Variant

GF108-400-A1

TeraScale 3

Architecture

Fermi

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

2.64 billion

Transistors

0.585 billion

389 mm²

Die Size

116 mm²

Board Design

375W

TDP

65W

750 W

Suggested PSU

250 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

2x 8-pin

Power Connectors

None

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.1

5.0

Shader Model

5.1

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