ATI Radeon HD 4870 X2 vs NVIDIA GeForce 8800 GTS 512

VS

ATI Radeon HD 4870 X2 NVIDIA GeForce 8800 GTS 512

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 512MB VRAM GeForce 8800 GTS 512 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Released 8 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (115.2GB/s vs 52.48GB/s)

672 additional rendering cores

NVIDIA GeForce 8800 GTS 512 's Advantages

Lower TDP (135W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +188%

1.2 TFLOPS

GeForce 8800 GTS 512

0.416 TFLOPS

Radeon HD 4870 X2

VS

GeForce 8800 GTS 512

Graphics Card

Aug 2008

Release Date

Dec 2007

Radeon R700

Generation

GeForce 8

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

820 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR3

256bit

Memory Bus

256bit

115.2GB/s

Bandwidth

52.48GB/s

Render Config

-

SM Count

16

10

Compute Units

-

800

Shading Units

128

40

TMUs

64

16

ROPs

16

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

-

256 KB

L2 Cache

64 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

10.40 GPixel/s

30.00 GTexel/s

Texture Rate

41.60 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

416.0 GFLOPS

240.0 GFLOPS

FP64 (double)

-

Graphics Processor

R700

GPU Name

G92

R700 XT (215-0669045)

GPU Variant

G92-400-A2

TeraScale

Architecture

Tesla

TSMC

Foundry

TSMC

55 nm

Process Size

65 nm

0.956 billion

Transistors

0.754 billion

256 mm²

Die Size

324 mm²

Board Design

286W

TDP

135W

600 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x S-Video

1x 6-pin + 1x 8-pin

Power Connectors

1x 6-pin

Graphics Features

10.1 (10_1)

DirectX

11.1 (10_0)

3.3

OpenGL

3.3

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

1.1

4.1

Shader Model

4.0

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