AMD Radeon HD 7990 vs NVIDIA GeForce 8600 GS

VS

AMD Radeon HD 7990 NVIDIA GeForce 8600 GS

We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7990 and 512MB VRAM GeForce 8600 GS to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7990 's Advantages

Released 6 years late

Boost Clock1000MHz

Larger VRAM bandwidth (288.0GB/s vs 12.80GB/s)

2032 additional rendering cores

NVIDIA GeForce 8600 GS 's Advantages

Lower TDP (47W vs 375W)

Score

Benchmark

FP32 (float)

Radeon HD 7990 +10678%

4.096 TFLOPS

GeForce 8600 GS

0.038 TFLOPS

Radeon HD 7990

VS

GeForce 8600 GS

Graphics Card

Apr 2013

Release Date

Apr 2007

Southern Islands

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 3.0 x16

Bus Interface

PCIe 1.0 x16

Clock Speeds

950 MHz

Base Clock

-

1000 MHz

Boost Clock

-

1500 MHz

Memory Clock

400 MHz

Memory

3GB

Memory Size

512MB

GDDR5

Memory Type

DDR2

384bit

Memory Bus

128bit

288.0GB/s

Bandwidth

12.80GB/s

Render Config

-

SM Count

2

32

Compute Units

-

2048

Shading Units

16

128

TMUs

8

32

ROPs

8

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

768 KB

L2 Cache

32 KB

Theoretical Performance

32.00 GPixel/s

Pixel Rate

4.320 GPixel/s

128.0 GTexel/s

Texture Rate

4.320 GTexel/s

-

FP16 (half)

-

4.096 TFLOPS

FP32 (float)

38.08 GFLOPS

1024 GFLOPS

FP64 (double)

-

Graphics Processor

Malta

GPU Name

G84

Malta XT (215-0849026)

GPU Variant

-

GCN 1.0

Architecture

Tesla

TSMC

Foundry

TSMC

28 nm

Process Size

80 nm

4.313 billion

Transistors

0.289 billion

365 mm²

Die Size

169 mm²

Board Design

375W

TDP

47W

750 W

Suggested PSU

200 W

1x DVI 4x mini-DisplayPort 1.2

Outputs

1x DVI 1x VGA 1x S-Video

2x 8-pin

Power Connectors

None

Graphics Features

12 (11_1)

DirectX

11.1 (10_0)

4.6

OpenGL

3.3

1.2

OpenCL

1.1

1.2

Vulkan

N/A

-

CUDA

1.1

5.1

Shader Model

4.0

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