Radeon HD 5870 Eyefinity 6 vs GeForce GT 640 Rev. 2
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 5870 Eyefinity 6 and 1024MB VRAM GeForce GT 640 Rev. 2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
Radeon HD 5870 Eyefinity 6 's Advantages
More VRAM (2GB vs 1024GB)
Larger VRAM bandwidth (153.6GB/s vs 40.06GB/s)
1216 additional rendering cores
GeForce GT 640 Rev. 2 's Advantages
Released 3 years and 2 months late
Lower TDP (49W vs 228W)
Score
Benchmark
FP32 (float)
Radeon HD 5870 Eyefinity 6
+238%
2720
GeForce GT 640 Rev. 2
803
Graphics Card
Mar 2010
Release Date
May 2013
Evergreen
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x8
Clock Speeds
1200 MHz
Memory Clock
1252 MHz
Memory
2GB
Memory Size
1024MB
GDDR5
Memory Type
GDDR5
256bit
Memory Bus
64bit
153.6GB/s
Bandwidth
40.06GB/s
Render Config
20
Compute Units
-
1600
Shading Units
384
80
TMUs
32
32
ROPs
8
8 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
512 KB
Theoretical Performance
27.20 GPixel/s
Pixel Rate
8.368 GPixel/s
68.00 GTexel/s
Texture Rate
33.47 GTexel/s
2.720 TFLOPS
FP32 (float)
803.3 GFLOPS
544.0 GFLOPS
FP64 (double)
33.47 GFLOPS
Board Design
228W
TDP
49W
550 W
Suggested PSU
200 W
6x mini-DisplayPort 1.1
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
Cypress
GPU Name
GK208
Cypress XT
(215-0735033)
GPU Variant
GK208-400-A1
TeraScale 2
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.154 billion
Transistors
1.02 billion
334 mm²
Die Size
87 mm²
Graphics Features
11.2 (11_0)
DirectX
12 (11_0)
4.4
OpenGL
4.6
1.2
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.5
5.0
Shader Model
5.1
