NVIDIA GeForce GTX 295 vs ATI Radeon HD 3870 X2
We compared two Desktop platform GPUs: 896MB VRAM GeForce GTX 295 and 512MB VRAM Radeon HD 3870 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.
Main Differences
NVIDIA GeForce GTX 295 's Advantages
Released 1 years late
More VRAM (896GB vs 512GB)
Larger VRAM bandwidth (111.9GB/s vs 57.66GB/s)
ATI Radeon HD 3870 X2 's Advantages
80 additional rendering cores
Lower TDP (165W vs 289W)
Score
Benchmark
FP32 (float)
GeForce GTX 295
+12%
0.596 TFLOPS
Radeon HD 3870 X2
0.528 TFLOPS
Graphics Card
Jan 2009
Release Date
Jan 2008
GeForce 200
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 2.0 x16
Bus Interface
PCIe 2.0 x16
Clock Speeds
-
-
-
-
-
-
999 MHz
Memory Clock
901 MHz
Memory
896MB
Memory Size
512MB
GDDR3
Memory Type
GDDR3
448bit
Memory Bus
256bit
111.9GB/s
Bandwidth
57.66GB/s
Render Config
-
Compute Units
4
30
SM Count
-
240
Shading Units
320
80
TMUs
16
28
ROPs
16
-
-
-
-
-
-
-
-
-
224 KB
L2 Cache
256 KB
-
-
-
Theoretical Performance
16.13 GPixel/s
Pixel Rate
13.20 GPixel/s
46.08 GTexel/s
Texture Rate
13.20 GTexel/s
-
-
-
596.2 GFLOPS
FP32 (float)
528.0 GFLOPS
74.52 GFLOPS
FP64 (double)
105.6 GFLOPS
Board Design
289W
TDP
165W
600 W
Suggested PSU
450 W
2x DVI
1x HDMI
Outputs
2x DVI
1x S-Video
1x 6-pin + 1x 8-pin
Power Connectors
1x 6-pin + 1x 8-pin
Graphics Processor
GT200B
GPU Name
R680
G200-401-B3
GPU Variant
R680 XT
(215-0708017)
Tesla 2.0
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
55 nm
1.4 billion
Transistors
0.666 billion
470 mm²
Die Size
192 mm²
Graphics Features
11.1 (10_0)
DirectX
10.1 (10_1)
3.3
OpenGL
3.3 (full)
4.0 (partial)
1.1
OpenCL
N/A
N/A
Vulkan
N/A
1.3
CUDA
-
4.0
Shader Model
4.1
