NVIDIA GeForce GTX 645

NVIDIA GeForce GTX 645 Benchmark

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

GPU Benchmark Score

9 %
Bad score from 1 sample
High uncertainty

Ranked 264th out of 526 in the GPU Database. Tests performed at 1920 x 1080 resolution.

Benchmark Average 10% Low 1% Low
Flux Core
Volumetric ray casting test, a computationally expensive method of rendering high-quality scenes
11 FPS 7 FPS 7 FPS
Electron
Randomly generated noise sphere test
8 FPS 8 FPS 8 FPS
City
Procedurally generated city scene with voxel rendering
9 FPS 8 FPS 8 FPS
Clouds
Real-time noise calculation and ray marching test
4 FPS 4 FPS 4 FPS

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

Geekbench (CUDA)
Geekbench (CUDA)
Geekbench (Metal)
Geekbench (Metal)
Geekbench (OpenCL)
Geekbench (OpenCL)
3,630 2,716 5,217

Compare these benchmarks and specs using our GPU Comparison Tool.

GPU Comparison

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

AMD Radeon RX 550X
12 %
NVIDIA GeForce GTX 960M
11 %
NVIDIA Quadro K4000M
9 %
NVIDIA GeForce GTX 645
9 %
NVIDIA Quadro M1000M
9 %
AMD Radeon R7 M380
9 %
Intel UHD 770
7 %

Specifications

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

NVIDIA GeForce GTX 645

The GeForce GTX 645 is a GPU from NVIDIA. This chip has a bad gaming score at 9% in our GPU benchmark.

The GeForce GTX 645 has 1 GiB of memory. More memory is beneficial when gaming at high resolutions as the memory needs to store the frame buffer and all the game textures. If you run out of memory, you will experience poor performance as the GPU needs to swap data in and out of the memory as it is used.

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.

Power and thermals for the NVIDIA GeForce GTX 645 are a TDP (Thermal Design Power) of 64 watts. This measures the amount of heat the GPU produces when running at 100%. This isn't a measure of power consumption, but it's a good estimate.

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

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