Home GPU Comparison ATI Radeon HD 3870 AGP vs ATI Radeon HD 2600 XT AGP

ATI Radeon HD 3870 AGP vs ATI Radeon HD 2600 XT AGP

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 3870 AGP and 256MB VRAM Radeon HD 2600 XT AGP to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 3870 AGP 's Advantages
More VRAM (512GB vs 256GB)
Larger VRAM bandwidth (72.06GB/s vs 25.60GB/s)
200 additional rendering cores
ATI Radeon HD 2600 XT AGP 's Advantages
Lower TDP (45W vs 106W)

Score

Benchmark

FP32 (float)
Radeon HD 3870 AGP +158%
0.497 TFLOPS
Radeon HD 2600 XT AGP
0.192 TFLOPS
VS

Graphics Card

Unknown
Release Date
Jun 2007
Radeon R600
Generation
Radeon R600
Desktop
Type
Desktop
AGP 8x
Bus Interface
AGP 8x

Clock Speeds

-
-
-
-
-
-
1126 MHz
Memory Clock
800 MHz

Memory

512MB
Memory Size
256MB
GDDR4
Memory Type
GDDR3
256bit
Memory Bus
128bit
72.06GB/s
Bandwidth
25.60GB/s

Render Config

4
Compute Units
3
-
-
-
320
Shading Units
120
16
TMUs
8
16
ROPs
4
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
64 KB
-
-
-

Theoretical Performance

12.43 GPixel/s
Pixel Rate
3.200 GPixel/s
12.43 GTexel/s
Texture Rate
6.400 GTexel/s
-
-
-
497.3 GFLOPS
FP32 (float)
192.0 GFLOPS
99.46 GFLOPS
FP64 (double)
-

Board Design

106W
TDP
45W
300 W
Suggested PSU
200 W
2x DVI 1x S-Video
Outputs
1x DVI 1x VGA 1x S-Video
1x 8-pin
Power Connectors
1x 6-pin

Graphics Processor

RV670
GPU Name
RV630
RV670 XT (215-0708005)
GPU Variant
RV630 XT (215CDABKA15FG)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
55 nm
Process Size
65 nm
0.666 billion
Transistors
0.39 billion
192 mm²
Die Size
153 mm²

Graphics Features

10.1 (10_1)
DirectX
10.0 (10_0)
3.3 (full) 4.0 (partial)
OpenGL
3.3
N/A
OpenCL
N/A
N/A
Vulkan
N/A
-
-
-
4.1
Shader Model
4.0

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