NVIDIA GeForce 8600 GS vs AMD Radeon HD 7870 XT

VS

NVIDIA GeForce 8600 GS

AMD Radeon HD 7870 XT

We compared two Desktop platform GPUs: 512MB VRAM GeForce 8600 GS and 2GB VRAM Radeon HD 7870 XT to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce 8600 GS 's Advantages

Lower TDP (47W vs 185W)

AMD Radeon HD 7870 XT 's Advantages

Released 5 years and 7 months late

Boost Clock975MHz

More VRAM (2GB vs 512GB)

Larger VRAM bandwidth (192.0GB/s vs 12.80GB/s)

1520 additional rendering cores

Score

Benchmark

FP32 (float)

GeForce 8600 GS

0.038 TFLOPS

Radeon HD 7870 XT +7781%

2.995 TFLOPS

GeForce 8600 GS

VS

Radeon HD 7870 XT

Graphics Card

Apr 2007

Release Date

Nov 2012

GeForce 8

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 1.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

925 MHz

-

Boost Clock

975 MHz

400 MHz

Memory Clock

1500 MHz

Memory

512MB

Memory Size

2GB

DDR2

Memory Type

GDDR5

128bit

Memory Bus

256bit

12.80GB/s

Bandwidth

192.0GB/s

Render Config

-

Compute Units

24

2

SM Count

-

16

Shading Units

1536

8

TMUs

96

8

ROPs

32

-

L1 Cache

16 KB (per CU)

32 KB

L2 Cache

512 KB

-

Theoretical Performance

4.320 GPixel/s

Pixel Rate

31.20 GPixel/s

4.320 GTexel/s

Texture Rate

93.60 GTexel/s

-

38.08 GFLOPS

FP32 (float)

2.995 TFLOPS

-

FP64 (double)

748.8 GFLOPS

Board Design

47W

TDP

185W

200 W

Suggested PSU

450 W

1x DVI 1x VGA 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2

None

Power Connectors

2x 6-pin

Graphics Processor

G84

GPU Name

Tahiti

-

GPU Variant

Tahiti LE (215-0821122)

Tesla

Architecture

GCN 1.0

TSMC

Foundry

TSMC

80 nm

Process Size

28 nm

0.289 billion

Transistors

4.313 billion

169 mm²

Die Size

352 mm²

Graphics Features

11.1 (10_0)

DirectX

12 (11_1)

3.3

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

1.1

CUDA

-

4.0

Shader Model

5.1

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