AMD Radeon HD 7490M vs NVIDIA GeForce GT 645M

VS

AMD Radeon HD 7490M NVIDIA GeForce GT 645M

We compared two Mobile platform GPUs: 1024MB VRAM Radeon HD 7490M and 2GB VRAM GeForce GT 645M to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

AMD Radeon HD 7490M 's Advantages

Larger VRAM bandwidth (30.40GB/s vs 28.80GB/s)

Lower TDP (9W vs 32W)

NVIDIA GeForce GT 645M 's Advantages

Released 9 months late

More VRAM (2GB vs 1GB)

224 additional rendering cores

Score

Benchmark

FP32 (float)

Radeon HD 7490M

0.256 TFLOPS

GeForce GT 645M +112%

0.544 TFLOPS

Radeon HD 7490M

VS

GeForce GT 645M

Graphics Card

Jan 2012

Release Date

Oct 2012

London

Generation

GeForce 600M

Mobile

Type

Mobile

PCIe 2.0 x16

Bus Interface

PCIe 3.0 x16

Clock Speeds

-

Base Clock

-

Boost Clock

-

950 MHz

Memory Clock

900 MHz

Memory

1024MB

Memory Size

2GB

GDDR5

Memory Type

DDR3

64bit

Memory Bus

128bit

30.40GB/s

Bandwidth

28.80GB/s

Render Config

-

SM Count

-

2

Compute Units

-

160

Shading Units

384

8

TMUs

32

4

ROPs

16

-

Tensor Cores

-

RT Cores

-

8 KB (per CU)

L1 Cache

16 KB (per SMX)

128 KB

L2 Cache

256 KB

Theoretical Performance

3.200 GPixel/s

Pixel Rate

5.672 GPixel/s

6.400 GTexel/s

Texture Rate

22.69 GTexel/s

-

FP16 (half)

-

256.0 GFLOPS

FP32 (float)

544.5 GFLOPS

-

FP64 (double)

22.69 GFLOPS

Graphics Processor

Seymour

GPU Name

GK107

Seymour XTX (216-0810005)

GPU Variant

N13P-GS

TeraScale 2

Architecture

Kepler

TSMC

Foundry

TSMC

40 nm

Process Size

28 nm

0.37 billion

Transistors

1.27 billion

67 mm²

Die Size

118 mm²

Board Design

9W

TDP

32W

-

Suggested PSU

-

No outputs

Outputs

No outputs

-

Power Connectors

-

Graphics Features

11.2 (11_0)

DirectX

12 (11_0)

4.4

OpenGL

4.6

1.2

OpenCL

3.0

N/A

Vulkan

1.1

-

CUDA

3.0

5.0

Shader Model

5.1

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