ATI Radeon HD 2600 PRO vs GeForce GT 645 OEM
We compared two Desktop platform GPUs: 256MB VRAM ATI Radeon HD 2600 PRO and 1024MB VRAM GeForce GT 645 OEM 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 102W)
GeForce GT 645 OEM 's Advantages
Released 4 years and 10 months late
More VRAM (1024GB vs 256GB)
Larger VRAM bandwidth (91.87GB/s vs 16.00GB/s)
168 additional rendering cores
Score
Benchmark
FP32 (float)
ATI Radeon HD 2600 PRO
144
GeForce GT 645 OEM
+520%
894
Graphics Card
Jun 2007
Release Date
Apr 2012
Radeon R600
Generation
GeForce 600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
500 MHz
Memory Clock
957 MHz
Memory
256MB
Memory Size
1024MB
DDR2
Memory Type
GDDR5
128bit
Memory Bus
192bit
16.00GB/s
Bandwidth
91.87GB/s
Render Config
3
Compute Units
-
-
SM Count
6
120
Shading Units
288
8
TMUs
48
4
ROPs
24
-
L1 Cache
64 KB (per SM)
64 KB
L2 Cache
384 KB
Theoretical Performance
2.400 GPixel/s
Pixel Rate
9.312 GPixel/s
4.800 GTexel/s
Texture Rate
37.25 GTexel/s
144.0 GFLOPS
FP32 (float)
894.0 GFLOPS
-
FP64 (double)
74.50 GFLOPS
Board Design
35W
TDP
102W
200 W
Suggested PSU
300 W
2x DVI
1x S-Video
Outputs
2x DVI
1x mini-HDMI 1.3a
None
Power Connectors
-
Graphics Processor
RV630
GPU Name
GF114
RV630 PRO
(215CDBBKA15FG)
GPU Variant
-
TeraScale
Architecture
Fermi 2.0
TSMC
Foundry
TSMC
65 nm
Process Size
40 nm
0.39 billion
Transistors
1.95 billion
153 mm²
Die Size
332 mm²
Graphics Features
10.0 (10_0)
DirectX
12 (11_0)
3.3
OpenGL
4.6
N/A
OpenCL
1.1
N/A
Vulkan
N/A
-
CUDA
2.1
4.0
Shader Model
5.1
