NVIDIA GeForce GTX 645 Benchmark and Specs

NVIDIA GeForce GTX 645 GPU benchmark and specs - 1 GB NVIDIA Graphics card rating. How good is the GeForce GTX 645 for gaming?

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Benchmark Score

297

Bad score from 1 sample
High uncertainty

Performance

Bad

Ranking

380th of 586

Popularity

554th of 586

Samples

1 benchmarks

Quick compare

Search for a CPU to compare against or choose a popular comparison below.

GPU Comparison

The NVIDIA GeForce GTX 645 compared against popular alternatives. Compare against more GPUs with our GPU Comparison Tool.

AMD Radeon Vega 6	315 points
NVIDIA Quadro K620	306 points
NVIDIA GeForce GTX 645	297 points
AMD Radeon R7 450	297 points
AMD Radeon R9 350	297 points
Intel Iris Plus 640	287 points
Intel Iris Plus 655	278 points

GPU benchmarks

Here are the performance results of this graphics card in both the hardwareDB Benchmark and other benchmark utilities. Synthetic tests are an estimation of real-world performance using consistent and repeatable benchmarks. All tests were performed at 1920 x 1080 resolution.

Flux Core

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

16 FPS average

8 FPS 10% low

8 FPS 1% low

Electron

Randomly generated noise sphere test

8 FPS average

8 FPS 10% low

33 FPS 1% low

City

Procedurally generated city scene with voxel rendering

8 FPS average

8 FPS 10% low

8 FPS 1% low

Clouds

Real-time noise calculation and ray marching test

8 FPS average

8 FPS 10% low

33 FPS 1% low

Want to compare your GPU against the GeForce GTX 645 and these results? Download our free and quick PC Performance Test.

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Alternative benchmarks

Here are some benchmark results using alternative testing software

Blender

Cycles Render (Samples per minute)

Geekbench 5 (CUDA)

CUDA compute benchmark

3,630

Geekbench 5 (Metal)

Metal compute benchmark

2,716

Geekbench 5 (OpenCL)

OpenCL compute benchmark

5,217

Geekbench 6 (Metal)

Metal compute benchmark

5,638

Geekbench 6 (OpenCL)

OpenCL compute benchmark

5,274

Compare these benchmarks and specs using our GPU Comparison Tool

Specifications

Memory Size	1 GiB
TDP	64 W
DirectX Support	11
OpenGL Support	4.5

NVIDIA GeForce GTX 645

Thanks to our GPU Benchmark, we have measured the NVIDIA GeForce GTX 645 as a bad gaming performer a score of 297 points.

The GeForce GTX 645 has 1 GiB of memory. If you plan on gaming at higher resolutions with higher quality textures, more memory is important. Without enough memory, performance will be degraded.

As for rendering API support, the GeForce GTX 645 supports up to DirectX 11. In addition, in cross-platform titles, OpenGL 4.5 features are supported. Newer APIs are usually more efficient, allowing for better performance in games and better graphical effects.

This chip has a Thermal Design Power of 64W: the total amount of waste heat generated. A card that runs hotter will need better cooling and will draw more power from the wall.

To figure out your graphics card specs and performance, download our free GPU Benchmark utility.

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