ATI Radeon HD 4870 X2 vs NVIDIA GeForce GTX 490

VS

ATI Radeon HD 4870 X2 NVIDIA GeForce GTX 490

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 1536MB VRAM GeForce GTX 490 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

320 additional rendering cores

Lower TDP (286W vs 365W)

NVIDIA GeForce GTX 490 's Advantages

More VRAM (1536GB vs 1024GB)

Larger VRAM bandwidth (164.0GB/s vs 115.2GB/s)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +2%

1.2 TFLOPS

GeForce GTX 490

1.166 TFLOPS

Radeon HD 4870 X2

VS

GeForce GTX 490

Graphics Card

Aug 2008

Release Date

Unknown

Radeon R700

Generation

GeForce 400

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

854 MHz

Memory

1024MB

Memory Size

1536MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

384bit

115.2GB/s

Bandwidth

164.0GB/s

Render Config

-

SM Count

15

10

Compute Units

-

800

Shading Units

480

40

TMUs

60

16

ROPs

48

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

768 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

18.24 GPixel/s

30.00 GTexel/s

Texture Rate

36.48 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

1166 GFLOPS

240.0 GFLOPS

FP64 (double)

145.8 GFLOPS

Graphics Processor

R700

GPU Name

GF100

R700 XT (215-0669045)

GPU Variant

GF100-375-A3

TeraScale

Architecture

Fermi

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

3.1 billion

256 mm²

Die Size

529 mm²

Board Design

286W

TDP

365W

600 W

Suggested PSU

750 W

2x DVI 1x S-Video

Outputs

3x DVI 1x mini-DisplayPort

1x 6-pin + 1x 8-pin

Power Connectors

2x 8-pin

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

1.1

N/A

Vulkan

N/A

-

CUDA

2.0

4.1

Shader Model

5.1

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