ATI Radeon HD 5870 Eyefinity 6 vs NVIDIA GeForce GT 640 OEM
We compared two Desktop platform GPUs: 2GB VRAM Radeon HD 5870 Eyefinity 6 and 2GB VRAM GeForce GT 640 OEM to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
ATI Radeon HD 5870 Eyefinity 6 's Advantages
Larger VRAM bandwidth (153.6GB/s vs 28.51GB/s)
1216 additional rendering cores
NVIDIA GeForce GT 640 OEM 's Advantages
Released 2 years and 1 months late
Lower TDP (50W vs 228W)
Score
Benchmark
FP32 (float)
Radeon HD 5870 Eyefinity 6
+344%
2.72 TFLOPS
GeForce GT 640 OEM
0.612 TFLOPS
Graphics Card
Mar 2010
Release Date
Apr 2012
Evergreen
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 3.0 x16
Clock Speeds
-
-
-
-
-
-
1200 MHz
Memory Clock
891 MHz
Memory
2GB
Memory Size
2GB
GDDR5
Memory Type
DDR3
256bit
Memory Bus
128bit
153.6GB/s
Bandwidth
28.51GB/s
Render Config
20
Compute Units
-
-
-
-
1600
Shading Units
384
80
TMUs
32
32
ROPs
16
-
-
-
-
-
-
8 KB (per CU)
L1 Cache
16 KB (per SMX)
512 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
27.20 GPixel/s
Pixel Rate
6.376 GPixel/s
68.00 GTexel/s
Texture Rate
25.50 GTexel/s
-
-
-
2.720 TFLOPS
FP32 (float)
612.1 GFLOPS
544.0 GFLOPS
FP64 (double)
25.50 GFLOPS
Board Design
228W
TDP
50W
550 W
Suggested PSU
250 W
6x mini-DisplayPort 1.1
Outputs
1x DVI
1x HDMI 1.4a
1x DisplayPort 1.2
1x 6-pin + 1x 8-pin
Power Connectors
None
Graphics Processor
Cypress
GPU Name
GK107
Cypress XT
(215-0735033)
GPU Variant
GK107-320-A2
TeraScale 2
Architecture
Kepler
TSMC
Foundry
TSMC
40 nm
Process Size
28 nm
2.154 billion
Transistors
1.27 billion
334 mm²
Die Size
118 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
3.0
5.0
Shader Model
5.1
