ATI Radeon HD 2600 PRO vs GeForce GT 640 Rev. 2
We compared two Desktop platform GPUs: 256MB VRAM ATI Radeon HD 2600 PRO 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
ATI Radeon HD 2600 PRO 's Advantages
Lower TDP (35W vs 49W)
GeForce GT 640 Rev. 2 's Advantages
Released 5 years and 11 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (40.06GB/s vs 16.00GB/s)
264 additional rendering cores
Score
Benchmark
FP32 (float)
ATI Radeon HD 2600 PRO
144
GeForce GT 640 Rev. 2
+457%
803
Graphics Card
Jun 2007
Release Date
May 2013
Radeon R600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x8
Clock Speeds
500 MHz
Memory Clock
1252 MHz
Memory
256MB
Memory Size
1024MB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
64bit
16.00GB/s
Bandwidth
40.06GB/s
Render Config
3
Compute Units
-
120
Shading Units
384
8
TMUs
32
4
ROPs
8
-
L1 Cache
16 KB (per SMX)
64 KB
L2 Cache
512 KB
Theoretical Performance
2.400 GPixel/s
Pixel Rate
8.368 GPixel/s
4.800 GTexel/s
Texture Rate
33.47 GTexel/s
144.0 GFLOPS
FP32 (float)
803.3 GFLOPS
-
FP64 (double)
33.47 GFLOPS
Board Design
35W
TDP
49W
200 W
Suggested PSU
200 W
2x DVI
1x S-Video
Outputs
1x DVI
1x HDMI 1.4a
1x VGA
None
Power Connectors
None
Graphics Processor
RV630
GPU Name
GK208
RV630 PRO
(215CDBBKA15FG)
GPU Variant
GK208-400-A1
TeraScale
Architecture
Kepler 2.0
TSMC
Foundry
TSMC
65 nm
Process Size
28 nm
0.39 billion
Transistors
1.02 billion
153 mm²
Die Size
87 mm²
Graphics Features
10.0 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
N/A
OpenCL
3.0
N/A
Vulkan
1.1
-
CUDA
3.5
4.0
Shader Model
5.1