NVIDIA GeForce GTX 745 vs NVIDIA GeForce 840M

Compare NVIDIA GeForce GTX 745 vs NVIDIA GeForce 840M, specs and GPU benchmark score. Which is the better graphics card for the money?

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Benchmark Score

Overall Score

General gaming and workstation score

325 points
3% slightly better overall score
315 points

Flux Core frame rate

Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes

6 FPS
8 FPS
2 FPS significantly higher Flux Core frame rate

Electron frame rate

Randomly generated noise sphere test

5 FPS
6 FPS
1 FPS slightly higher Electron frame rate

City frame rate

Procedurally generated city scene with voxel rendering

5 FPS
5 FPS
0 FPS slightly higher City frame rate

Clouds frame rate

Real-time noise calculation and ray marching test

4 FPS
5 FPS
0 FPS slightly higher Clouds frame rate

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Other Benchmarks

Blender score

Blender score

Cycles Render (Samples per minute)

54.07 points
19% slightly higher Blender score
45.23 points
Geekbench 5 (CUDA) score

Geekbench 5 (CUDA) score

CUDA compute benchmark

6443 points
14% slightly higher Geekbench 5 (CUDA) score
5629 points
Geekbench 5 (OpenCL) score

Geekbench 5 (OpenCL) score

OpenCL compute benchmark

6300 points
6% slightly higher Geekbench 5 (OpenCL) score
5938 points
Geekbench 5 (Vulkan) score

Geekbench 5 (Vulkan) score

Vulkan compute benchmark

6087 points
16% slightly higher Geekbench 5 (Vulkan) score
5207 points
Geekbench 6 (OpenCL) score

Geekbench 6 (OpenCL) score

OpenCL compute benchmark

6165 points
1% slightly higher Geekbench 6 (OpenCL) score
6089 points
Geekbench 6 (Vulkan) score

Geekbench 6 (Vulkan) score

Vulkan compute benchmark

5513 points
4% slightly higher Geekbench 6 (Vulkan) score
5261 points

Specifications

Memory Bus Width

Number of parallel lines to the memory chips

128 Bit
100% significantly larger memory bus width
64 Bit

Memory Bandwidth

Data transfer speed between GPU core and memory

28.8 GB/s
79% significantly higher memory bandwidth
16.02 GB/s

TDP

Thermal Design Power: Measure of heat generated by the GPU

55 W
33 W
66% significantly lower TDP

Pixel Rate

Number of pixels that can be rendered per second

16.53 Gigapixels/s
83% significantly higher pixel rate
8.99 Gigapixels/s

Texture Rate

Number of textured pixels that can be rendered per second

24.79 Gigatexels/s
37% slightly higher texture rate
17.98 Gigatexels/s

Shading Units

Number of processors dedicated to shader processing

384
Identical
384

Texture Mapping Units

Number of processors dedicated to applying textures

24
49% significantly more texture mapping units
16

Render Output Processors

Number of processors dedicated to final pixel rendering

16
100% significantly more render output processors
8

Other details

Rank

Ranking in the hardwareDB database

369th of 586
370th of 586

Release date

The official date of release of this chip

2014 February
2014 March

Memory Type

The type of memory used by this chip

DDR3
DDR3

DirectX Support

Maximum version of DirectX supported

12.0
12.0

OpenGL Support

Maximum version of OpenGL supported

4.6
4.6

GeForce GTX 745 vs GeForce 840M comparison

For gaming, the GeForce GTX 745 graphics card is better than the GeForce 840M in our tests.

In addition, the GeForce 840M has a significantly lower TDP at 33 W when compared to the GeForce GTX 745 at 55 W. This is not a measure of performance, but rather the amount of heat generated by the chip when running at its highest speed.

In terms of raw gaming performance in our GPU benchmark, the GeForce GTX 745 is better than the GeForce 840M.

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