Home GPU Comparison ATI Radeon HD 2900 XTX vs ATI Radeon HD 3850 X2

ATI Radeon HD 2900 XTX vs ATI Radeon HD 3850 X2

We compared two Desktop platform GPUs: 512MB VRAM Radeon HD 2900 XTX and 512MB VRAM Radeon HD 3850 X2 to see which GPU has better performance in key specifications, benchmark tests, power consumption, etc.

Main Differences

ATI Radeon HD 2900 XTX 's Advantages
Larger VRAM bandwidth (106.0GB/s vs 52.99GB/s)
ATI Radeon HD 3850 X2 's Advantages
Lower TDP (140W vs 240W)

Score

Benchmark

FP32 (float)
Radeon HD 2900 XTX +11%
0.476 TFLOPS
Radeon HD 3850 X2
0.428 TFLOPS
VS

Graphics Card

Unknown
Release Date
Apr 2008
Radeon R600
Generation
Radeon R600
Desktop
Type
Desktop
PCIe 1.0 x16
Bus Interface
PCIe 2.0 x16

Clock Speeds

-
-
-
-
-
-
828 MHz
Memory Clock
828 MHz

Memory

512MB
Memory Size
512MB
GDDR3
Memory Type
GDDR3
512bit
Memory Bus
256bit
106.0GB/s
Bandwidth
52.99GB/s

Render Config

4
Compute Units
4
-
-
-
320
Shading Units
320
16
TMUs
16
16
ROPs
16
-
-
-
-
-
-
-
-
-
256 KB
L2 Cache
256 KB
-
-
-

Theoretical Performance

11.89 GPixel/s
Pixel Rate
10.70 GPixel/s
11.89 GTexel/s
Texture Rate
10.70 GTexel/s
-
-
-
475.5 GFLOPS
FP32 (float)
428.2 GFLOPS
-
FP64 (double)
85.63 GFLOPS

Board Design

240W
TDP
140W
550 W
Suggested PSU
300 W
2x DVI 1x S-Video
Outputs
2x DVI 1x S-Video
2x 6-pin
Power Connectors
-

Graphics Processor

R600
GPU Name
RV670
R600 XTX A11 (215RGMDKA11FG)
GPU Variant
RV670 PRO (215-0708003)
TeraScale
Architecture
TeraScale
TSMC
Foundry
TSMC
80 nm
Process Size
55 nm
0.72 billion
Transistors
0.666 billion
420 mm²
Die Size
192 mm²

Graphics Features

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

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