AMD Radeon HD 6990 vs NVIDIA GeForce 8600 GT

VS

AMD Radeon HD 6990 NVIDIA GeForce 8600 GT

We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 6990 and 512MB VRAM GeForce 8600 GT 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 11 months late

Larger VRAM bandwidth (160.0GB/s vs 22.40GB/s)

1504 additional rendering cores

NVIDIA GeForce 8600 GT 's Advantages

Lower TDP (47W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 6990 +3255%

2.55 TFLOPS

GeForce 8600 GT

0.076 TFLOPS

Radeon HD 6990

VS

GeForce 8600 GT

Graphics Card

Mar 2011

Release Date

Apr 2007

Northern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

1250 MHz

Memory Clock

700 MHz

Memory

2GB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

128bit

160.0GB/s

Bandwidth

22.40GB/s

Render Config

-

SM Count

4

24

Compute Units

-

1536

Shading Units

32

96

TMUs

16

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

-

512 KB

L2 Cache

32 KB

Theoretical Performance

26.56 GPixel/s

Pixel Rate

4.320 GPixel/s

79.68 GTexel/s

Texture Rate

8.640 GTexel/s

-

FP16 (half)

-

2.550 TFLOPS

FP32 (float)

76.16 GFLOPS

637.4 GFLOPS

FP64 (double)

-

Graphics Processor

Antilles

GPU Name

G84

Antilles XT (215-0807027)

GPU Variant

G84-303-A2

TeraScale 3

Architecture

Tesla

TSMC

Foundry

TSMC

40 nm

Process Size

80 nm

2.64 billion

Transistors

0.289 billion

389 mm²

Die Size

169 mm²

Board Design

375W

TDP

47W

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

2x DVI 1x S-Video

2x 8-pin

Power Connectors

None

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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