NVIDIA GeForce GTX 750 Ti vs NVIDIA GeForce GTX 645 OEM
We compared two Desktop platform GPUs: 2GB VRAM GeForce GTX 750 Ti and 1024MB VRAM GeForce GTX 645 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 750 Ti 's Advantages
Released 10 months late
Boost Clock1085MHz
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (86.40GB/s vs 64.00GB/s)
64 additional rendering cores
Lower TDP (60W vs 65W)
Score
Benchmark
FP32 (float)
GeForce GTX 750 Ti
+46%
1.389 TFLOPS
GeForce GTX 645 OEM
0.949 TFLOPS
Graphics Card
Feb 2014
Release Date
Apr 2013
GeForce 700
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
1020 MHz
Base Clock
-
1085 MHz
Boost Clock
-
1350 MHz
Memory Clock
1000 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
128bit
Memory Bus
128bit
86.40GB/s
Bandwidth
64.00GB/s
Render Config
-
-
-
-
-
-
640
Shading Units
576
40
TMUs
48
16
ROPs
16
-
-
-
-
-
-
64 KB (per SMM)
L1 Cache
16 KB (per SMX)
2 MB
L2 Cache
256 KB
-
-
-
Theoretical Performance
17.36 GPixel/s
Pixel Rate
9.888 GPixel/s
43.40 GTexel/s
Texture Rate
39.55 GTexel/s
-
-
-
1389 GFLOPS
FP32 (float)
949.2 GFLOPS
43.40 GFLOPS
FP64 (double)
39.55 GFLOPS
Board Design
60W
TDP
65W
250 W
Suggested PSU
250 W
2x DVI
1x mini-HDMI 2.0
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
None
Power Connectors
None
Graphics Processor
GM107
GPU Name
GK106
GM107-400-A2
GPU Variant
GK106-200-A1
Maxwell
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.87 billion
Transistors
2.54 billion
148 mm²
Die Size
221 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_0)
4.6
OpenGL
4.6
3.0
OpenCL
3.0
1.3
Vulkan
1.1
5.0
CUDA
3.0
5.1
Shader Model
5.1
