NVIDIA GeForce GTX 490 vs AMD Radeon HD 6990

VS

NVIDIA GeForce GTX 490 AMD Radeon HD 6990

We compared two Desktop platform GPUs: 1536MB VRAM GeForce GTX 490 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 490 's Advantages

Larger VRAM bandwidth (164.0GB/s vs 160.0GB/s)

Lower TDP (365W vs 375W)

AMD Radeon HD 6990 's Advantages

More VRAM (2GB vs 1GB)

1056 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce GTX 490

1.166 TFLOPS

Radeon HD 6990 +118%

2.55 TFLOPS

GeForce GTX 490

VS

Radeon HD 6990

Graphics Card

Unknown

Release Date

Mar 2011

GeForce 400

Generation

Northern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

854 MHz

Memory Clock

1250 MHz

Memory

1536MB

Memory Size

2GB

GDDR5

Memory Type

GDDR5

384bit

Memory Bus

256bit

164.0GB/s

Bandwidth

160.0GB/s

Render Config

15

SM Count

-

Compute Units

24

480

Shading Units

1536

60

TMUs

96

48

ROPs

32

-

Tensor Cores

-

RT Cores

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

768 KB

L2 Cache

512 KB

Theoretical Performance

18.24 GPixel/s

Pixel Rate

26.56 GPixel/s

36.48 GTexel/s

Texture Rate

79.68 GTexel/s

-

FP16 (half)

-

1166 GFLOPS

FP32 (float)

2.550 TFLOPS

145.8 GFLOPS

FP64 (double)

637.4 GFLOPS

Graphics Processor

GF100

GPU Name

Antilles

GF100-375-A3

GPU Variant

Antilles XT (215-0807027)

Fermi

Architecture

TeraScale 3

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

3.1 billion

Transistors

2.64 billion

529 mm²

Die Size

389 mm²

Board Design

365W

TDP

375W

750 W

Suggested PSU

750 W

3x DVI 1x mini-DisplayPort

Outputs

1x DVI 4x mini-DisplayPort 1.2

2x 8-pin

Power Connectors

2x 8-pin

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

2.0

CUDA

-

5.1

Shader Model

5.0

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