AMD Radeon HD 6990 vs NVIDIA GeForce 8800 GTS 512

VS

AMD Radeon HD 6990 NVIDIA GeForce 8800 GTS 512

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 512MB VRAM GeForce 8800 GTS 512 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 6990 's Advantages

Released 3 years and 3 months late

Larger VRAM bandwidth (160.0GB/s vs 52.48GB/s)

1408 additional rendering cores

NVIDIA GeForce 8800 GTS 512 's Advantages

Lower TDP (135W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +512%

2.55 TFLOPS

GeForce 8800 GTS 512

0.416 TFLOPS

Radeon HD 6990

VS

GeForce 8800 GTS 512

Graphics Card

Mar 2011

Release Date

Dec 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

820 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

160.0GB/s

Bandwidth

52.48GB/s

Render Config

-

SM Count

16

24

Compute Units

-

1536

Shading Units

128

96

TMUs

64

32

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

64 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

10.40 GPixel/s

79.68 GTexel/s

Texture Rate

41.60 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

416.0 GFLOPS

637.4 GFLOPS

FP64 (double)

-

Graphics Processor

Antilles

GPU Name

G92

Antilles XT (215-0807027)

GPU Variant

G92-400-A2

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

65 nm

2.64 billion

Transistors

0.754 billion

389 mm²

Die Size

324 mm²

Board Design

375W

TDP

135W

750 W

Suggested PSU

300 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

1x 6-pin

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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