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GPU Comparison
NVIDIA GeForce GT 640 Rev. 2 vs ATI Radeon HD 4860
NVIDIA GeForce GT 640 Rev. 2 vs ATI Radeon HD 4860
VS
NVIDIA GeForce GT 640 Rev. 2
ATI Radeon HD 4860
We compared two Desktop platform GPUs: 1024MB VRAM GeForce GT 640 Rev. 2 and 512MB VRAM Radeon HD 4860 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GT 640 Rev. 2 's Advantages
Released 3 years and 8 months late
More VRAM (1024GB vs 512GB)
Lower TDP (49W vs 130W)
ATI Radeon HD 4860 's Advantages
Larger VRAM bandwidth (96.00GB/s vs 40.06GB/s)
256 additional rendering cores
Score
Benchmark
FP32 (float)
GeForce GT 640 Rev. 2
0.803 TFLOPS
Radeon HD 4860
+11%
0.896 TFLOPS
GeForce GT 640 Rev. 2
VS
Radeon HD 4860
Graphics Card
May 2013
Release Date
Sep 2009
GeForce 600
Generation
Radeon R700
Desktop
Type
Desktop
PCIe 2.0 x8
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
Base Clock
-
-
Boost Clock
-
1252 MHz
Memory Clock
750 MHz
Memory
1024MB
Memory Size
512MB
GDDR5
Memory Type
GDDR5
64bit
Memory Bus
256bit
40.06GB/s
Bandwidth
96.00GB/s
Render Config
-
SM Count
-
-
Compute Units
8
384
Shading Units
640
32
TMUs
32
8
ROPs
16
-
Tensor Cores
-
-
RT Cores
-
16 KB (per SMX)
L1 Cache
16 KB (per CU)
512 KB
L2 Cache
256 KB
Theoretical Performance
8.368 GPixel/s
Pixel Rate
11.20 GPixel/s
33.47 GTexel/s
Texture Rate
22.40 GTexel/s
-
FP16 (half)
-
803.3 GFLOPS
FP32 (float)
896.0 GFLOPS
33.47 GFLOPS
FP64 (double)
179.2 GFLOPS
Graphics Processor
GK208
GPU Name
RV790
GK208-400-A1
GPU Variant
RV790 GT
Kepler 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
28 nm
Process Size
55 nm
1.02 billion
Transistors
0.959 billion
87 mm²
Die Size
282 mm²
Board Design
49W
TDP
130W
200 W
Suggested PSU
300 W
1x DVI 1x HDMI 1.4a 1x VGA
Outputs
2x DVI 1x S-Video
None
Power Connectors
2x 6-pin
Graphics Features
12 (11_0)
DirectX
10.1 (10_1)
4.6
OpenGL
3.3
3.0
OpenCL
1.1
1.1
Vulkan
N/A
3.5
CUDA
-
5.1
Shader Model
4.1
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4
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5
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6
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7
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8
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9
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10
NVIDIA GeForce GT 640 Rev. 2 vs AMD FirePro W8100
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