AMD Radeon HD 6990 vs NVIDIA GeForce G100 OEM

VS

AMD Radeon HD 6990

NVIDIA GeForce G100 OEM

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 256MB VRAM GeForce G100 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 2 years late

More VRAM (2GB vs 256GB)

Larger VRAM bandwidth (160.0GB/s vs 6.400GB/s)

1528 additional rendering cores

NVIDIA GeForce G100 OEM 's Advantages

Lower TDP (35W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +12042%

2.55 TFLOPS

GeForce G100 OEM

0.021 TFLOPS

Radeon HD 6990

VS

GeForce G100 OEM

Graphics Card

Mar 2011

Release Date

Mar 2009

Northern Islands

Generation

GeForce 100

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

1250 MHz

Memory Clock

400 MHz

Memory

2GB

Memory Size

256MB

GDDR5

Memory Type

DDR2

256bit

Memory Bus

64bit

160.0GB/s

Bandwidth

6.400GB/s

Render Config

24

Compute Units

-

SM Count

1

1536

Shading Units

8

96

TMUs

4

32

ROPs

4

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

16 KB

-

Theoretical Performance

26.56 GPixel/s

Pixel Rate

2.160 GPixel/s

79.68 GTexel/s

Texture Rate

2.160 GTexel/s

-

2.550 TFLOPS

FP32 (float)

20.80 GFLOPS

637.4 GFLOPS

FP64 (double)

-

Board Design

375W

TDP

35W

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Processor

Antilles

GPU Name

G98

Antilles XT (215-0807027)

GPU Variant

G98-309-U2

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

2.64 billion

Transistors

0.21 billion

389 mm²

Die Size

86 mm²

Graphics Features

11.2 (11_0)

DirectX

11.1 (10_0)

4.4

OpenGL

3.3

1.2

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

5.0

Shader Model

4.0

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