ATI Radeon HD 4870 X2 vs NVIDIA GeForce GT 645 OEM

VS

ATI Radeon HD 4870 X2 NVIDIA GeForce GT 645 OEM

We compared two Desktop platform GPUs: 1024MB VRAM Radeon HD 4870 X2 and 1024MB VRAM GeForce GT 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 4870 X2 's Advantages

Larger VRAM bandwidth (115.2GB/s vs 91.87GB/s)

512 additional rendering cores

NVIDIA GeForce GT 645 OEM 's Advantages

Released 3 years and 8 months late

Lower TDP (102W vs 286W)

Score

Benchmark

FP32 (float)

Radeon HD 4870 X2 +34%

1.2 TFLOPS

GeForce GT 645 OEM

0.894 TFLOPS

Radeon HD 4870 X2

VS

GeForce GT 645 OEM

Graphics Card

Aug 2008

Release Date

Apr 2012

Radeon R700

Generation

GeForce 600

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

900 MHz

Memory Clock

957 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

256bit

Memory Bus

192bit

115.2GB/s

Bandwidth

91.87GB/s

Render Config

-

SM Count

6

10

Compute Units

-

800

Shading Units

288

40

TMUs

48

16

ROPs

24

-

Tensor Cores

-

RT Cores

-

16 KB (per CU)

L1 Cache

64 KB (per SM)

256 KB

L2 Cache

384 KB

Theoretical Performance

12.00 GPixel/s

Pixel Rate

9.312 GPixel/s

30.00 GTexel/s

Texture Rate

37.25 GTexel/s

-

FP16 (half)

-

1200 GFLOPS

FP32 (float)

894.0 GFLOPS

240.0 GFLOPS

FP64 (double)

74.50 GFLOPS

Graphics Processor

R700

GPU Name

GF114

R700 XT (215-0669045)

GPU Variant

-

TeraScale

Architecture

Fermi 2.0

TSMC

Foundry

TSMC

55 nm

Process Size

40 nm

0.956 billion

Transistors

1.95 billion

256 mm²

Die Size

332 mm²

Board Design

286W

TDP

102W

600 W

Suggested PSU

300 W

2x DVI 1x S-Video

Outputs

2x DVI 1x mini-HDMI 1.3a

1x 6-pin + 1x 8-pin

Power Connectors

-

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

2.1

4.1

Shader Model

5.1

Related GPU Comparisons

1

ATI Radeon HD 4870 X2 vs AMD Radeon Pro WX 3200

2

ATI Radeon HD 4870 X2 vs AMD Radeon HD 8770 OEM

3

ATI Radeon HD 4870 X2 vs AMD Radeon Pro V5300X

4

ATI Radeon HD 4870 X2 vs NVIDIA GeForce GTX 1070

5

ATI Radeon HD 4870 X2 vs AMD Radeon Pro WX 7100

6

ATI Radeon HD 4870 X2 vs NVIDIA GeForce GT 415 OEM

7

ATI Radeon HD 4870 X2 vs NVIDIA GeForce RTX 2060 SUPER

8

ATI Radeon HD 4870 X2 vs AMD Radeon RX 6500 XT

9

ATI Radeon HD 4870 X2 vs AMD FirePro W5000 DVI

10

ATI Radeon HD 4870 X2 vs AMD Radeon R9 270 1024SP

Related News

1

Time to Step Up, AMD and Intel! Nvidia Faces Antitrust Lawsuits in France, US, and EU

2

Intel Arrow Lake-S Features Dual Direct M.2 Slots: One PCIe 5.0 x4 and One PCIe 4.0 x4

3

AMD Ryzen 9000X3D Series to Feature Fully Unlocked Overclocking; DDR5-6400: The 'Sweet Spot' for Zen 5 Memory Speeds

4

Intel Z890 Motherboard Specs Leaked: Farewell to DDR4 Memory

5

AMD Ryzen 9000 Series Now Available for Pre-order in Europe: 9950X Priced at €660, Shipping by August 2

6

AMD's Latest Breakthrough Technology Could Change the Game in the Future

7

Researchers Utilize NVIDIA Omniverse Platform to Analyze and Improve 3D Stacked Chip Designs

8

TSMC to Receive Over 60 EUV Lithography Machines Over the Next Two Years, Investing More Than $12.3 Billion

9

Samsung's Own 3nm Yield is Disheartening: Galaxy S25 May Introduce MediaTek for the First Time

10

AMD Ryzen 9000 DDR5 Memory Frequency Soars: Reaches 8000MHz with All Four Slots Occupied