NVIDIA GeForce GTX 460 X2 vs AMD Radeon HD 6990

VS

NVIDIA GeForce GTX 460 X2

AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GTX 460 X2 and 2GB VRAM Radeon HD 6990 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GTX 460 X2 's Advantages

Lower TDP (160W vs 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1024GB)

Larger VRAM bandwidth (160.0GB/s vs 115.2GB/s)

1200 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 460 X2

0.942 TFLOPS

Radeon HD 6990 +170%

2.55 TFLOPS

GeForce GTX 460 X2

VS

Radeon HD 6990

Graphics Card

Mar 2011

Release Date

Mar 2011

GeForce 400

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

900 MHz

Memory Clock

1250 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

160.0GB/s

Render Config

-

Compute Units

24

7

SM Count

-

336

Shading Units

1536

56

TMUs

96

32

ROPs

32

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

512 KB

L2 Cache

512 KB

-

Theoretical Performance

9.814 GPixel/s

Pixel Rate

26.56 GPixel/s

39.26 GTexel/s

Texture Rate

79.68 GTexel/s

-

941.5 GFLOPS

FP32 (float)

2.550 TFLOPS

78.46 GFLOPS

FP64 (double)

637.4 GFLOPS

Board Design

160W

TDP

375W

450 W

Suggested PSU

750 W

3x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 8-pin

Power Connectors

2x 8-pin

Graphics Processor

GF104

GPU Name

Antilles

GF104-300-KB-A1

GPU Variant

Antilles XT (215-0807027)

Fermi

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

2.64 billion

332 mm²

Die Size

389 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

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