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GPU Comparison
AMD Radeon HD 7950 Monica BIOS 2 vs NVIDIA GeForce GT 640 OEM
AMD Radeon HD 7950 Monica BIOS 2 vs NVIDIA GeForce GT 640 OEM
VS
AMD Radeon HD 7950 Monica BIOS 2
NVIDIA GeForce GT 640 OEM
We compared two Desktop platform GPUs: 3GB VRAM Radeon HD 7950 Monica BIOS 2 and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
AMD Radeon HD 7950 Monica BIOS 2 's Advantages
More VRAM (3GB vs 2GB)
Larger VRAM bandwidth (240.0GB/s vs 28.51GB/s)
384 additional rendering cores
NVIDIA GeForce GT 640 OEM 's Advantages
Lower TDP (50W vs 85W)
Score
Benchmark
FP32 (float)
Radeon HD 7950 Monica BIOS 2
+100%
1.229 TFLOPS
GeForce GT 640 OEM
0.612 TFLOPS
Radeon HD 7950 Monica BIOS 2
VS
GeForce GT 640 OEM
Graphics Card
Jan 2012
Release Date
Apr 2012
Southern Islands
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 3.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1250 MHz
Memory Clock
891 MHz
Memory
3GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
384bit
Memory Bus
128bit
240.0GB/s
Bandwidth
28.51GB/s
Render Config
12
Compute Units
-
-
-
-
768
Shading Units
384
48
TMUs
32
32
ROPs
16
-
-
-
-
-
-
16 KB (per CU)
L1 Cache
16 KB (per SMX)
768 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
25.60 GPixel/s
Pixel Rate
6.376 GPixel/s
38.40 GTexel/s
Texture Rate
25.50 GTexel/s
-
-
-
1229 GFLOPS
FP32 (float)
612.1 GFLOPS
307.2 GFLOPS
FP64 (double)
25.50 GFLOPS
Board Design
85W
TDP
50W
250 W
Suggested PSU
250 W
1x DVI 1x HDMI 1.4a 2x mini-DisplayPort 1.2
Outputs
1x DVI 1x HDMI 1.4a 1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
Tahiti
GPU Name
GK107
Tahiti PRO (215-0821056)
GPU Variant
GK107-320-A2
GCN 1.0
Architecture
Kepler
TSMC
Foundry
TSMC
28 nm
Process Size
28 nm
4.313 billion
Transistors
1.27 billion
352 mm²
Die Size
118 mm²
Graphics Features
12 (11_1)
DirectX
12 (11_0)
4.6
OpenGL
4.6
1.2
OpenCL
3.0
1.2
Vulkan
1.1
-
CUDA
3.0
5.1
Shader Model
5.1
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