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GPU Comparison
NVIDIA GeForce GT 640 vs AMD Radeon R7 240
NVIDIA GeForce GT 640 vs AMD Radeon R7 240
VS
NVIDIA GeForce GT 640
AMD Radeon R7 240
We compared two Desktop platform GPUs: 2GB VRAM GeForce GT 640 and 2GB VRAM Radeon R7 240 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 's Advantages
64 additional rendering cores
AMD Radeon R7 240 's Advantages
Released 1 years and 4 months late
Boost Clock780MHz
Larger VRAM bandwidth (28.80GB/s vs 28.51GB/s)
Lower TDP (30W vs 65W)
Score
Benchmark
FP32 (float)
GeForce GT 640
+38%
0.693 TFLOPS
Radeon R7 240
0.499 TFLOPS
GeForce GT 640
VS
Radeon R7 240
Graphics Card
Jun 2012
Release Date
Oct 2013
GeForce 600
Generation
Volcanic Islands
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x8
Clock Speeds
-
Base Clock
730 MHz
-
Boost Clock
780 MHz
891 MHz
Memory Clock
900 MHz
Memory
2GB
Memory Size
2GB
DDR3
Memory Type
DDR3
128bit
Memory Bus
128bit
28.51GB/s
Bandwidth
28.80GB/s
Render Config
-
Compute Units
5
-
-
-
384
Shading Units
320
32
TMUs
20
16
ROPs
8
-
-
-
-
-
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
256 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
7.216 GPixel/s
Pixel Rate
6.240 GPixel/s
28.86 GTexel/s
Texture Rate
15.60 GTexel/s
-
-
-
692.7 GFLOPS
FP32 (float)
499.2 GFLOPS
28.86 GFLOPS
FP64 (double)
-
Board Design
65W
TDP
30W
250 W
Suggested PSU
200 W
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 1x VGA
None
Power Connectors
None
Graphics Processor
GK107
GPU Name
Oland
GK107-300-A2
GPU Variant
Oland PRO (215-0837015)
Kepler
Architecture
GCN 1.0
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
1.27 billion
Transistors
0.95 billion
118 mm²
Die Size
77 mm²
Graphics Features
12 (11_0)
DirectX
12 (11_1)
4.6
OpenGL
4.6
3.0
OpenCL
1.2
1.1
Vulkan
1.2
3.0
CUDA
-
5.1
Shader Model
5.1
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9
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