Summary
NVIDIA released the GeForce GTX 645 in 2013. This graphics card features the GK106 GPU, manufactured on a 28nm process. It comes equipped with 1 GB GDDR5 memory on a 128-bit interface, delivering up to 64 GB/s of bandwidth. The GPU operates at 824 MHz with a theoretical compute performance of 949.2 GFLOPS. The card connects via PCIe3.0 and requires no external power. It supports DX11.
Performance
GPU Clock
824 MHz
Memory Clock
4000(1000)
Shader Performance
949248 MFLOPS
Pixel Fillrate
13184 MP/s
Texel Fillrate
39552 MT/s
Memory
Memory Size
1024 MB
Bus Width
128-bit
Memory Type
GDDR5
Max Bandwidth
64000 MB/s
Architecture
GPU Chip
GK106
Core Config
576 SP; 48 TMU; 16 ROP
Vertex Processors
576
Process Size
28nm
Transistors
2.45b
Compatibility
DirectX
DX11
Bus Slot
PCIe3.0
External Power
no
Release
Release Year
2013
Launch Price
OEM
Performance to Price
Worse
Better
Performance Comparison
Shader Performance (MFLOPS)
Memory Bandwidth (MB/s)
Game Performance Estimates
FPS estimates scaled from RTX 3060 benchmark data. Actual results vary based on CPU, drivers, and game updates.
Cyberpunk 2077
2020Medium
6
FPS
High
5
FPS
Ultra
4
FPS
Red Dead Redemption 2
2019Medium
5
FPS
High
4
FPS
Ultra
3
FPS
GTA V
2015Medium
11
FPS
High
9
FPS
Ultra
7
FPS
Fortnite
2017Medium
12
FPS
High
9
FPS
Ultra
6
FPS
Valorant
2020Medium
28
FPS
High
24
FPS
Ultra
18
FPS
Counter-Strike 2
2023Medium
14
FPS
High
11
FPS
Ultra
8
FPS
Call of Duty: MW III
2023Medium
9
FPS
High
7
FPS
Ultra
5
FPS
Apex Legends
2019Medium
11
FPS
High
9
FPS
Ultra
7
FPS
Elden Ring
2022Medium
4
FPS
High
4
FPS
Ultra
4
FPS
Hogwarts Legacy
2023Medium
6
FPS
High
4
FPS
Ultra
3
FPS
The Witcher 3
2015Medium
10
FPS
High
7
FPS
Ultra
5
FPS
Baldur's Gate 3
2023Medium
7
FPS
High
5
FPS
Ultra
4
FPS
60+ FPS (Smooth)
30-59 FPS (Playable)
<30 FPS (Low)