NVIDIA GeForce GT 645 OEM vs AMD Radeon HD 7750

VS

NVIDIA GeForce GT 645 OEM

AMD Radeon HD 7750

We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 645 OEM and 1024MB VRAM Radeon HD 7750 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

NVIDIA GeForce GT 645 OEM 's Advantages

Larger VRAM bandwidth (91.87GB/s vs 72.00GB/s)

AMD Radeon HD 7750 's Advantages

224 additional rendering cores

Lower TDP (55W vs 102W)

Score

Benchmark

FP32 (float)

GeForce GT 645 OEM +9%

0.894 TFLOPS

Radeon HD 7750

0.819 TFLOPS

GeForce GT 645 OEM

VS

Radeon HD 7750

Graphics Card

Apr 2012

Release Date

Feb 2012

GeForce 600

Generation

Southern Islands

Desktop

Type

Desktop

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

957 MHz

Memory Clock

1125 MHz

Memory

1024MB

Memory Size

1024MB

GDDR5

Memory Type

GDDR5

192bit

Memory Bus

128bit

91.87GB/s

Bandwidth

72.00GB/s

Render Config

-

Compute Units

8

6

SM Count

-

288

Shading Units

512

48

TMUs

32

24

ROPs

16

-

64 KB (per SM)

L1 Cache

16 KB (per CU)

384 KB

L2 Cache

256 KB

-

Theoretical Performance

9.312 GPixel/s

Pixel Rate

12.80 GPixel/s

37.25 GTexel/s

Texture Rate

25.60 GTexel/s

-

894.0 GFLOPS

FP32 (float)

819.2 GFLOPS

74.50 GFLOPS

FP64 (double)

51.20 GFLOPS

Board Design

102W

TDP

55W

300 W

Suggested PSU

250 W

2x DVI 1x mini-HDMI 1.3a

Outputs

1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2

-

Power Connectors

None

Graphics Processor

GF114

GPU Name

Cape Verde

-

GPU Variant

Cape Verde PRO

Fermi 2.0

Architecture

GCN 1.0

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

1.95 billion

Transistors

1.5 billion

332 mm²

Die Size

123 mm²

Graphics Features

12 (11_0)

DirectX

12 (11_1)

4.6

OpenGL

4.6

1.1

OpenCL

1.2

N/A

Vulkan

1.2

2.1

CUDA

-

5.1

Shader Model

5.1

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