NVIDIA GeForce GT 645 OEM vs ATI Radeon HD 5550

VS

NVIDIA GeForce GT 645 OEM

ATI Radeon HD 5550

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 512MB VRAM Radeon HD 5550 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Released 2 years and 2 months late

More VRAM (1024GB vs 512GB)

Larger VRAM bandwidth (91.87GB/s vs 51.20GB/s)

ATI Radeon HD 5550 's Advantages

32 additional rendering cores

Lower TDP (39W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +153%

0.894 TFLOPS

Radeon HD 5550

0.352 TFLOPS

GeForce GT 645 OEM

VS

Radeon HD 5550

Graphics Card

Apr 2012

Release Date

Feb 2010

GeForce 600

Generation

Evergreen

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 2.0 x16

Clock Speeds

-

957 MHz

Memory Clock

800 MHz

Memory

1024MB

Memory Size

512MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

51.20GB/s

Render Config

-

Compute Units

4

6

SM Count

-

288

Shading Units

320

48

TMUs

16

24

ROPs

8

-

64 KB (per SM)

L1 Cache

8 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

4.400 GPixel/s

37.25 GTexel/s

Texture Rate

8.800 GTexel/s

-

894.0 GFLOPS

FP32 (float)

352.0 GFLOPS

74.50 GFLOPS

FP64 (double)

-

Board Design

102W

TDP

39W

300 W

Suggested PSU

200 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.3a 1x VGA

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

Redwood

-

GPU Variant

Redwood PRO2

Fermi 2.0

Architecture

TeraScale 2

TSMC

Foundry

TSMC

40 nm

Process Size

40 nm

1.95 billion

Transistors

0.627 billion

332 mm²

Die Size

104 mm²

Graphics Features

12 (11_0)

DirectX

11.2 (11_0)

4.6

OpenGL

4.4

1.1

OpenCL

1.2

N/A

Vulkan

N/A

2.1

CUDA

-

5.1

Shader Model

5.0

Related GPU Comparisons

1

NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 5600 XT

2

NVIDIA GeForce GT 645 OEM vs NVIDIA RTX 4500 Ada Generation

3

NVIDIA GeForce GT 645 OEM vs Intel Arc A580

4

NVIDIA GeForce GT 645 OEM vs AMD Radeon HD 6570 OEM

5

NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 7900 XT

6

NVIDIA GeForce GT 645 OEM vs AMD Radeon 550X 640SP

7

NVIDIA GeForce GT 645 OEM vs AMD Radeon HD 6670

8

NVIDIA GeForce GT 645 OEM vs AMD FirePro S9010

9

NVIDIA GeForce GT 645 OEM vs AMD Radeon RX 6800

10

NVIDIA GeForce GT 645 OEM vs AMD Radeon HD 6970

Related News

1

Continuous Decline in DRAM Memory Prices: Downward Trend Intensifies

2

NVIDIA GB202 Chip Unveiled for the First Time, to be Used in RTX 5090 with 512-bit GDDR7 Memory

3

Strix Halo Integrated Graphics Score Appears on Passmark, Currently Slightly Below RTX 3060 12GB

4

AMD Unveils New RX 9070 XT Graphics Card Performance: Positioned Between RX 7900 GRE and RX 7900 XT

5

Double the Excitement! AMD FSR 4.0 to Launch Alongside RX 9070 XT Graphics Card

6

CPU-Z Minor Update: Support for Intel's Four New Products and New Memory

7

CXMT Reportedly Achieves 80% Yield in DDR5 Production

8

Intel Wildcat Lake Appears on Shipping List with FCBGA1516 Socket, Poised to Replace Alder Lake-N

9

The Commencement of ARM and Qualcomm Licensing Dispute Trial: Potential Major Impact on PC Market

10

NVIDIA Allegedly Equips RTX 5080 with 30Gbps Memory Speed, Other Models to Feature 28Gbps