ATI Radeon HD 4870 vs NVIDIA GeForce GT 630 Rev. 2 PCIe x8

VS

ATI Radeon HD 4870

NVIDIA GeForce GT 630 Rev. 2 PCIe x8

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 4870 and 2GB VRAM GeForce GT 630 Rev. 2 PCIe x8 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 14.40GB/s)

416 additional rendering cores

NVIDIA GeForce GT 630 Rev. 2 PCIe x8 's Advantages

Released 4 years and 11 months late

More VRAM (2GB vs 512GB)

Lower TDP (25W vs 150W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 +73%

1.2 TFLOPS

GeForce GT 630 Rev. 2 PCIe x8

0.693 TFLOPS

Radeon HD 4870

VS

GeForce GT 630 Rev. 2 PCIe x8

Graphics Card

Jun 2008

Release Date

May 2013

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x8

Clock Speeds

-

900 MHz

Memory Clock

900 MHz

Memory

512MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

256bit

Memory Bus

64bit

115.2GB/s

Bandwidth

14.40GB/s

Render Config

10

Compute Units

-

800

Shading Units

384

40

TMUs

32

16

ROPs

8

-

16 KB (per CU)

L1 Cache

16 KB (per SMX)

256 KB

L2 Cache

512 KB

-

Theoretical Performance

12.00 GPixel/s

Pixel Rate

7.216 GPixel/s

30.00 GTexel/s

Texture Rate

28.86 GTexel/s

-

1200 GFLOPS

FP32 (float)

692.7 GFLOPS

240.0 GFLOPS

FP64 (double)

28.86 GFLOPS

Board Design

150W

TDP

25W

450 W

Suggested PSU

200 W

2x DVI 1x S-Video

Outputs

1x DVI 1x HDMI 1.4a 1x VGA

2x 6-pin

Power Connectors

None

Graphics Processor

RV770

GPU Name

GK208

RV770 XT (215-0669049)

GPU Variant

GK208-301-A1

TeraScale

Architecture

Kepler 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

28 nm

0.956 billion

Transistors

1.02 billion

256 mm²

Die Size

87 mm²

Graphics Features

10.1 (10_1)

DirectX

12 (11_0)

3.3

OpenGL

4.6

1.1

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.5

4.1

Shader Model

5.1

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